National Weather Service United States Department of Commerce

Strong Storm Systems Impacting Both Coasts

The storm system on the East Coast is bringing widespread rain to the Mid-Atlantic and the Northeast. Freezing rain and snow is possible in interior, southern New England. A powerful Pacific storm system will bring heavy rain, high elevation snow, gusty winds, and extremely rough surf to the Pacific Northwest and northern California. Read More >

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Local Radar Loop
Graphical Nowcast
Local Watches, Advisories, and Warnings
National Watches and Warnings
Weather Story
SPC Day 1 Convective Outlook
SPC Day 1 Tornado Outlook
SPC Day 1 Hail Outlook
SPC Day 1 Wind Outlook
SPC Day 2 Categorical Outlook
SPC Day 2 Probabilistic Outlook
SPC Day 3 Categorical Outlook
SPC Day 3 Probabilistic Outlook
Day 1 Severe Thunderstorm Timing

Severe thunderstorms are not expected today or tonight.
Severe thunderstorms will be possible later today or tonight.
Severe thunderstorms will be possible in the next 6 hours.
Severe thunderstorms will be possible in the next 3 hours.
Day 1 Tornado Risk

No tornado risk.
Tornado risk less than 5 percent.
Tornado risk equal to or greater than 5 percent.
Tornado risk equal to or greater than 10 percent.
Tornado risk equal to or greater than 30 percent.
Day 1 Hail Risk

No risk of hail.
Risk of sub-severe hail (< 1" diameter); Chance of severe hail less than 15 percent.
Chance of severe hail equal to or greater than 15 percent.
Chance of severe hail equal to or greater than 30 percent.
Chance of severe hail equal to or greater than 45 percent.
Day 1 Damaging Thunderstorm Wind Risk

No thunderstorm wind risk.
Risk for sub-severe wind gusts (less than 58 mph); or Probability of severe wind gusts (58 mph or greater) less than 15%.
Probability of severe wind gusts equal to or greater than 15%.
Probability of severe wind gusts equal to or greater than 30%.
Probability of severe wind gusts equal to or greater than 45%.
Day 1 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 2 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 3 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 4 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 5 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 6 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 7 Severe Thunderstorm Risk

No risk of severe thunderstorms.
Risk for severe thunderstorms less than 15%.
Risk for severe thunderstorms greater than or equal to 15%.
Risk for severe thunderstorms greater than or equal to 30%.
Risk for severe thunderstorms greater than or equal to 45%.
Day 1 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 2 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 3 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 4 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 5 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 6 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 7 Lightning Risk

None.
Isolated to scattered in coverage.
Numerous thunderstorms.
Widespread thunderstorms.
Nearly continuous cloud-to- ground lightning strikes in and near storms.
Day 1 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 2 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 3 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 4 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 5 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 6 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 7 Non-thunderstorm Wind Risk

Sustained winds < 20 mph and Wind gusts < 35 mph.
Sustained winds 26-29 mph or Wind gusts 35-44 mph.
Sustained winds 30-39 mph or Wind gusts 45-57 mph.
Sustained winds 40-49 mph or Wind gusts 58-64 mph.
Sustained winds > 50 mph or Wind gusts > 65 mph.
Day 1 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 2 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 3 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 4 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 5 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 6 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 7 Flood Risk

No Flooding risk.
Risk of localized flash flooding of small streams, and minor flooding of poor drainage or urban areas.
Risk of flash flooding of several roads and small streams.
Risk of flash flooding of numerous roads and small streams.
Risk of widespread flash flooding of roads and small streams.
Day 1 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 2 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 3 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 4 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 5 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 6 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 7 Fire Weather Risk

Open burning is usually safe with proper containers and precautions under low fire danger conditions.
Open burning is usually safe with the proper precautions. Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon.
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel. Approaching Red Flag conditions.
Open burning should not be attempted. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Day 1 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 2 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 3 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 4 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 5 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 6 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 7 Grassland Fire Danger Index

Probability of a fast moving fire is low.
High potential for fire to spread.
Dangerous burning conditions exist. Fires will spread rapidly and show erratic behavior.
Critical burning conditions exist. All fires have the potential to become large and spread quickly and become erratic with extreme fire behavioral characteristics.
Extreme grassland fire weather conditions that are rarely experienced in our area. Any fire that starts will spread rapidly and be almost impossible to control.
Day 1 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 2 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 3 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 4 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 5 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 6 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 7 Excessive Heat Risk

None: Maximum Heat Index < 95 degrees F.
Limited: Maximum Heat Index 95 to 104 degrees F.
Elevated: Maximum Heat Index 105 to 109 degrees F OR Maximum Heat Index greater than or equal to 100 degrees F for 4 consecutive days.
Significant: Maximum Heat Index 110 to 114 degrees F OR Maximum Heat Index greater than or equal to 105 degrees F for 4 consecutive days.
Extreme: Maximum heat index greater than or equal to 115 degrees F OR Maximum Apparent Temperataure greater than or equal to 105 degrees F for 5 consecutive days.
Day 1 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 2 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 3 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 4 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 5 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 6 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 7 Fog Risk

No risk of fog.
Patchy Fog or Freezing Fog.
Areas of Fog or Freezing Fog.
Widespread Fog or Freezing Fog
Fog with near zero visibilities.
Day 1 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 2 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 3 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 4 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 5 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 6 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 7 Snow and Sleet Risk

No snow or sleet.
Snow and/or sleet with less than 1 inch of accumulation expected.
Snow and/or sleet with 1 to 5.9 inches of accumulation expected.
Snow and/or sleet with 6 to 11.9 inches of accumulation expected.
Snow and/or sleet with greater than or equal to 12 inches of accumulation expected.
Day 1 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 2 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 3 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 4 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 5 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 6 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 7 Ice Accumulation Risk

No freezing rain or drizzle.
Very light freezing rain or drizzle with up to a thin glaze, OR Freezing Fog.
Freezing rain or drizzle with accumulation less than 1/4 inch.
Freezing rain with accumulation of 1/4 inch to less than 1 inch.
Freezing rain with accumulation of greater than or equal to 1 inch.
Day 1 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 2 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 3 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 4 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 5 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 6 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 7 Frost/Freeze Risk

No danger of frost or freeze causing damage to vegetation.
Patchy frost during the growing season with minor damage to unprotected vegetation.
Frost expected during the growing season with damage to unprotected vegetation.
Freeze expected (less than or equal to 32 degrees F for 3 or more hours) during the growing season with significant damage to unprotected vegetation.
Hard freeze (less than or equal to 28 degrees F) during the growing season with catastrophic damage to unprotected vegetation.
Day 1 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 2 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 3 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 4 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 5 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 6 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 7 Excessive Cold Risk

Minimum wind chill greater than or equal to 10 degrees F.
Minimum wind chill 0 to 9 deg F.
Minimum wind chill -10 to -19 deg. F
Minimum wind chill -20 to -29 deg. F.
Minimum wind chill less than or equal to -30 degrees F
Day 1 Marine Hazard Risk

No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 2 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 3 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 4 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 5 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 6 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 7 Marine Hazard Risk
No marine hazard risk.
Winds >= 15 knots and/or Waves >= 2 feet.
Winds >= 23 knots and/or Waves >= 4 feet.
Winds >= 34 knots and/or Waves >= 9 feet.
Winds >= 48 knots and/or Waves >= 14 feet.
Day 1 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 2 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 3 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 4 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 5 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 6 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 7 Freezing Spray Risk
No freezing spray risk.
Moderate Freezing Spray Expected

Heavy Freezing Spray Expected
Day 1 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 2 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 3 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 4 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 5 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 6 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 7 Coastal Flood Risk

No Coastal Flooding risk.
Winds >= 30mph and Wave Heights >= 8 feet; Isolated areas of beach erosion and coastal flooding possible.
Winds >=35 mph and Wave Heights >=11 feet. Scattered areas of beach erosion and coastal flooding possible.
Winds >=40 mph and Wave Heights >=14 feet. Significant beach erosion and coastal flooding possible.
Winds >= 45 mph and Wave Heights >= 17 feet. Widespread beach erosion and coastal flooding possible.
Day 1 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 2 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 3 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 4 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 5 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 6 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
Day 7 Swim Risk
No Swim Risk.
Large waves and strong currents are not expected along the shore. However, dangerous currents can still form near river mouths and shoreline structures, such as piers or breakwalls, even during low wave heights.
Large waves and strong currents are likely along the shore. Only experienced swimmers should consider entering the water. Stay away from river mouths and shoreline stuctures.
Dangerous waves and currents are expected along the shore. Swimming conditions may be life threatening to anyone entering the water.
Extreme:
 

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