WPC Probabilistic Winter Precipitation Guidance

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48-Hour Probability of Snow Accumulating ≥ 2"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 4"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 8"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 12"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 18"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 24"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

48-Hour Probability of Snow Accumulating ≥ 30"
	Day 2				Day 3
Valid for the 48-hour period ending:	12 UTC Mon Sep 16	18 UTC Mon Sep 16	00 UTC Tue Sep 17	06 UTC Tue Sep 17	12 UTC Tue Sep 17

Viewing Options

Choose an accumulation for the specified time:

Choose a 48-hour period for the specified amount:

Map Overlays

State Boundaries

(Note: The GRIB2 download page contains 4 directories corresponding to the accumulation period of the forecast)


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