Boulder County

Watches/Warnings/Advisories
Severe/Flash Flood
Winter Weather
High Wind Potential
Fire Weather
Hourly Forecast
Radar/Lightning

Boulder County Weather Decision Support

Click on any area for more detailed information on each Warning, Watch or Advisory.
(Current Fires depicted by a green triangle)

Severe Weather/Flash Flooding Decision Support

Today's Severe Weather Outlook

Today's Tornado Potential

Today's Hail Potential

Today's Thunderstorm Wind Gust Potential

Today's Flash Flood Potential

Flooding Legend Flooding Safety Tips

Risk Level		Definition
	None	No Flooding risk.
	Limited	Risk of localized flash flooding of small streams and low water crossings, and minor flooding of poor drainage or urban areas.
	Elevated	Risk of flash flooding of several low water crossings, roads, and small streams, or Minor River Flooding.
	Significant	Risk of flash flooding of numerous roads, low water crossings, and small streams, or Moderate river flooding.
	Extreme	Risk of widespread flash flooding of low water crossings, roads, and small streams. or Major river flooding.

Winter Weather Decision Support

Snowfall Totals by Location

High Wind Decision Support

Non Thunderstorm Wind Legend Wind Safety Tips Boating Safety Tips

Risk Level		Definition
	None	Sustained winds < 20 mph and Wind gusts < 30 mph.
	Limited	Sustained winds 20-29 mph or Wind gusts 30-44 mph.
	Elevated	Sustained winds 30-39 mph or Wind gusts 45-57 mph.
	Significant	Sustained winds 40-49 mph or Wind gusts 58-64 mph.
	Extreme	Sustained winds > 50 mph or Wind gusts > 65 mph.

Fire Weather Decision Support

Today's Fire Potential

Fire Weather Legend

Wildfire weather Safety Tips

Risk Level

Definition

	Low	Open burning is usually safe with proper containers and precautions under low fire danger conditions. Residents should always check on local ordinances that prohibit open burning under any conditions.
	Moderate	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. Residents should always check on local ordinances that prohibit open burning under any conditions.
	High	Approaching Red Flag conditions. All open burning is discouraged due to increased wind and lower humidity except by experienced fire personnel. Increasing winds and lower humidity contribute to drying fuels. Fires escape control more easily and containment is difficult for inexperienced fire personnel.
	Very High	Open burning should not be attempted. Open fires can quickly escape and are very difficult to control, even for experienced fire fighters. Conditions exceed minimum criteria for a Red Flag Warning in most cases.
	Severe	Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity. Fires will spread very quickly with spot fires common. Fire control is extremely difficult due to very strong winds.

***These definitions are geared towards the general public and general emergency management and should not be confused with the standard National Fire Danger Rating System (NFDRS) adjectives used by wildland fire personnel

Hourly/Weekly Weather Forecast
(Click on any spot for an Hourly Forecast out to 7 Days)

Current Radar and Warnings

Real Time Lightning Data