NWS La Crosse Decision Support

La Crosse, WI

Weather Forecast Office

Forecast Highs

Emergency Management

Contact NWS La Crosse via phone, radio,
email at nws.lacrosse@noaa.gov,
or NWSChat (online chat room)

Click anywhere on the map for the forecast. Turn the various weather parameters "on and off" using the display options at right. Hover over a highlighted area to see the hazard.	Map Display Options
Hourly Forecast Forecast Discussion Current Conditions Regional Hazards Storm Reports DSS Packet Hazardous Weather Outlook (Text) Hazardous Weather Outlook (Graphical)

Severe Thunderstorm Outlooks
Radar
Satellite
Temperatures
Winds
Heat
Cold
Winter
Rivers / Precip
Additional Forecasts
Past Weather
Reference
Informational Links

National Severe Weather Outlooks (Explanation of Risk Categories)

Today / Tonight

Tomorrow / Tomorrow Night

Day 3

Days 4-8

[details] [enhanced timing]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]

Severe Risk
Day 3 outlook

Severe Probability
Probability of Severe Weather

[details]

Severe Risk
Days 4-8 outlook

All Outlooks At A Glance
Probability of Severe Weather

Iowa Severe Weather Outlooks

Today / Tonight

Tomorrow / Tomorrow Night

Day 3

[details] [enhanced timing]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]

Severe Risk
Day 3 outlook

Severe Probability
Probability of Severe Weather

Minnesota Severe Weather Outlooks

Today / Tonight

Tomorrow / Tomorrow Night

Day 3

[details] [enhanced timing]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]

Severe Risk
Day 3 outlook

Severe Probability
Probability of Severe Weather

Wisconsin Severe Weather Outlooks

Today / Tonight

Tomorrow / Tomorrow Night

Day 3

[details] [enhanced timing]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]

Severe Risk
Day 3 outlook

Severe Probability
Probability of Severe Weather

Local Severe Weather Outlooks

Today / Tonight

Tomorrow / Tomorrow Night

Day 3

[details] [enhanced timing]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]
Severe Risk	Hail Risk
Wind Risk	Tornado Risk

[details]

Severe Risk
Day 3 outlook

Severe Probability
Probability of Severe Weather

Local Severe Weather Timing Guidance - TODAY

Local Severe Weather Timing Guidance - TOMORROW (images typically populate by 11 AM CDT)

Regional Radar Imagery

Local, Regional, & National Radar

La Crosse	Regional Radar	National Radar

Neighboring NWS Radars

Duluth	Twin Cities	Des Moines	Quad Cities	Milwaukee	Green Bay

Regional Satellite Imagery

GeoColor	Visible	Visible/IR Sandwich	Day/Night Cloud Micro Combo


Fire Temperature	Hot Spot Detection	Infrared	Water Vapor

Temperature Forecasts

Wind Forecasts

3-Hour Forecast Sustained Winds and Wind Gusts

Now	6 hrs	12 hrs	18 hrs	24 hrs	30 hrs	36 hrs
Now	6 hrs	12 hrs	18 hrs	24 hrs	30 hrs	36 hrs
Hover over thumbnails above to view a larger version below. Wind graphics are updated by approximately 4:30 AM, 10:30 AM, 4:30 PM, and 10:30 PM.

Heat Index / Wet Bulb Globe Temperature Forecasts

Today's Forecast Heat Index					Forecast MAXIMUM Heat Index


7 AM (CDT)	10 AM (CDT)	1 PM (CDT)	4 PM (CDT)	7 PM (CDT)	Tomorrow	Day 3	Day 4

Today's Forecast Wet Bulb Globe Temp					Forecast MAXIMUM Wet Bulb Globe Temp


7 AM (CDT)	10 AM (CDT)	1 PM (CDT)	4 PM (CDT)	7 PM (CDT)	Tomorrow	Day 3	Day 4

Heat Index & Wet Bulb Globe Temperature Resources

Heat Index Chart

Note: Exposure to full sunshine can increase
heat index values by up to 15°F.

WBGT General Guidance

Note: WBGT is NOT directly comparable
to temperature or heat index scales.

Resources:

Heat Safety

Recognize Heat Illness

WBGT vs. Heat Index

WBGT Informational Guide

WBGT Calculator

Heat Index Calculator

Wind Chill Forecasts (Available October - April)

3-Hour Forecast Wind Chills

Now		6 hrs		12 hrs		18 hrs		24 hrs		30 hrs		36 hrs
Hover over thumbnails above to view a larger version below. Wind chill graphics are updated by approximately 4:30 AM, 10:30 AM, 4:30 PM, and 10:30 PM.

Wind Chill Resources

Wind Chill Calculator:

Cold / Wind Chill Resources:

Wind Chill FAQ

Cold Weather Safety

Cold Weather Headline Changes
effective Oct 2024

Advisory Criteria

Warning Criteria

Winter Road Conditions

Current Road Conditions

Latest Travel Information

Disclaimer:

Weather and road conditions change rapidly; information reported here should not be used as the only factor in determining whether to travel in a particular area.
Reports are based on the information available at the time of preparation and cannot be guaranteed as to accuracy or timeliness. Actual conditions may vary from those reported.
Motorists are cautioned to be alert to changing circumstances and adjust their driving accordingly.

	Minnesota 511
	Iowa 511
	Wisconsin 511

Snow & Ice Forecasts

Snow/Ice Amount Potential Over Next 72 Hours*			City Snowfall Probabilities
*Snow/ice amount graphics below may occasionally depict total accumulations from multiple events over next 72 hours
Expected Snowfall Official NWS Forecast	Low End Snowfall Potential 90% Chance Snowfall Will Be Greater Than This	High End Snowfall Potential 10% Chance Snowfall Will Be Greater Than This	Forecast Snowfall Probability Ranges By City

Expected Ice Accumulation Official NWS Forecast	Low End Ice Accum Potential 90% Chance Icing Will Be Greater Than This	High End Ice Accum Potential 10% Chance Icing Will Be Greater Than This	Probability of Snowfall Exceeding Certain Amounts

Chance That Snow/Ice Amounts Over Next 72 Hours Will Be Greater Than Or Equal To... (More Details)
SNOW	0.1"	1"	2"	4"	6"	8"	12"	18"
ICE	0.01"	0.1"	0.25"	0.5"	0.75"	1"	1.25"	1.5"

6-Hour Forecast Snow/Ice Amounts and Snow Type (Dry vs. Wet)

	Now	24 hrs	48 hrs	72 hrs
6-hr snow
	Now	24 hrs	48 hrs	72 hrs
6-hr snow type
	Now	24 hrs	48 hrs	72 hrs
6-hr ice
Hover over thumbnails above to view a larger version below.

Hourly Precipitation Amounts By County

Snow and Sleet Legend

Risk Level	Hazard	Impacts/Actions
None	None	< 1" of snow or sleet
Limited	1 to 3 inches	Locally hazardous travel conditions on bridges, overpasses, and untreated or secondary roads
Elevated	3 to 6 inches	Be prepared to reduce travel speed for hazardous travel conditions - especially on bridges, overpasses, untreated and secondary roads
Significant	6 to 12 inches	Plan for hazardous travel conditions. Avoid travel if possible
Extreme	12 or more inches	Travel will be dangerous and may be impossible. Avoid travel unless it is an emergency

Ice Accumulation Legend

Risk Level	Hazard	Impacts/Actions
None	None	No freezing rain or drizzle
Limited	Very light freezing rain or drizzle with up to a thin glaze, or freezing fog	Locally hazardous travel conditions on bridges, overpasses, and untreated or secondary roads
Elevated	Freezing rain or drizzle with accumulation less than 1/4 inch	Be prepared to reduce travel speed for hazardous travel conditions - especially on bridges, overpasses, untreated and secondary roads
Significant	Freezing rain with accumulation of 1/4 to less than 1 inch	Plan for hazardous travel conditions. Power lines and trees may be damaged resulting in localized to scattered power outages. Avoid travel if possible and prepare for possible power outages
Extreme	Freezing rain with accumulation of greater than or equal to 1 inch	Travel will be dangerous and may be impossible. Power lines and trees likely damaged resulting in widespread power outages. Avoid travel unless it is an emergency and prepare for extended power outages

Winter Storm Severity Index (More Details)

Today

Overall Impacts	Blowing Snow	Ice Accumulation	Snow Amount	Snow Load

Tomorrow

Overall Impacts	Blowing Snow	Ice Accumulation	Snow Amount	Snow Load

Day 3

Overall Impacts	Blowing Snow	Ice Accumulation	Snow Amount	Snow Load

National Outlooks

Snow Outlooks (Probability for greater than 4")			Ice Outlooks (Probability for greater than 1/10")

Day 1	Day 2	Day 3	Day 1	Day 2	Day 3

Extended Outlooks (Probability for impactful winter weather)

Day 4	Day 5	Day 6	Day 7

Rivers / Precipitation

River Information


Flood Hazard Outlook (experimental)	Significant River Flood Outlook	NWS La Crosse River Monitor Webpage	Current River Levels and Forecasts	USGS River Gauge Webcams

Rainfall Information


1-hour Estimated Precip	Storm Total Estimated Precip	Rainfall Last 24 Hours	Rainfall Last 7 Days	Rainfall Last 30 Days

Precipitation Forecasts - Discussion


Today	Tomorrow	Day 3	Days 4-5	Days 6-7	Local 72-Hour Forecast

National Excessive Rainfall Outlooks - Discussion


Today	Tomorrow	Day 3	Day 4	Day 5

Local Excessive Rainfall Outlooks


Today	Tomorrow	Day 3	Day 4	Day 5

Flash Flood Guidance (FFG)

			About Flash Flood Guidance (FFG): FFG provides an estimate of the amount of rainfall over a specific area during a given duration of time that is required to cause small streams to overflow their natural bank. The latest FFG is referenced when issuing flash flood watches and warnings. These 1, 3, and 6-hour FFG products are issued twice daily around 11am and 9pm and are meant to be used only as guidance. Topography and urbanization also affect flash flooding.
1 Hour Flash Flood Guidance	3 Hour Flash Flood Guidance	6 Hour Flash Flood Guidance

Drought Information - More Information


Midwest Drought Monitor (updated weekly)	Midwest Drought Monitor Change From Previous Week	U.S. Monthly Drought Outlook	U.S. Seasonal Drought Outlook	30-Day Observed Precipitation