Computer Snow Output

Computer Model Predictions for Snowfall

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GFS Model: (All times in central time)
(00z/12z) ready at 11:15am/pm:
1 Day Total
2 Day Total
3 Day Total
4 Day Total
5 Day Total
5 Day Total Regional Maps

(06z/18z) ready at 6:15am/pm: 
1 Day Total
2 Day Total
3 Day Total
4 Day Total
5 Day Total
5 Day Total Regional Maps

NAM Model:

(00z/12z) ready at 9:30am/pm
1 Day Total
2 Day Total
3 Day Total
3.5 Day Total
3.5 Day Total Regional Maps

(06z/18z) ready at 4:30am/pm:
1 Day Total
2 Day Total
3 Day Total
3.5 Day Total
3.5 Day Total Regional Coverage


Canadian Model (GEM) 00z/12z
24 Hour Total
48 Hour Total
72 Hour Total
96 Hour Total
120 Hour Total
144 Hour Total

Official NWS Gridded Snow Forecasts
Usually out to 60 or 54 hours.

Complete United States

Northeast
Mid-Atlantic
Ohio Valley
West Coast
Mid-Mississippi Valley

Minnesota
Wisconsin
Illinois
Iowa
Indiana
Lower Michigan
Colorado
South Dakota
North Dakota
Nebraska
Ohio

Chicago
Minneapolis
Milwaukee
Green Bay
Marquette
Detroit
Grand Rapids
Des Moines
St. Louis
La Crosse
Omaha
Denver
Kansas City

UW-NMS Model 

00z 

24 Hour Total
48 Hour Total
72 Hour Total
96 Hour Total

06z
24 Hour Total
48 Hour Total
72 Hour Total
96 Hour Total

12z
24 Hour Total
48 Hour Total
72 Hour Total
96 Hour Total

18z
24 Hour Total
48 Hour Total
72 Hour Total
96 Hour Total