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WPC Probabilistic Winter Precipitation Guidance
 
24-Hour Forecasts   48-Hour Forecasts
 Snowfall 
Probability Forecasts 		 Freezing Rain 
Probability Forecasts 		   Snowfall 
Probability Forecasts 		 Freezing Rain 
Probability Forecasts
24-Hour Probability of Snow Accumulating ≥ 1"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 2"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 4"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 6"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 8"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 12"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
24-Hour Probability of Snow Accumulating ≥ 18"
  Day 1 Day 2 Day 3
Valid for the 24-hour
period ending: 		00Z Wednesday
September 02, 2026 		00Z Thursday
September 03, 2026 		00Z Friday
September 04, 2026
Viewing Options
Choose an accumulation for the specified time:







OR
Choose a period for the specified amount:

00Z 09/01/2026 -
 00Z 09/02/2026

00Z 09/02/2026 -
 00Z 09/03/2026

00Z 09/03/2026 -
 00Z 09/04/2026
 
Opacity (%): 0 20 40 60 80 100
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