WPC Probabilistic Winter Precipitation Guidance

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24-Hour Probability of Snow Accumulating ≥ 1"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 2"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 4"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 6"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 8"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 12"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

24-Hour Probability of Snow Accumulating ≥ 18"
	Day 1				Day 2				Day 3
Valid for the 24-hour period ending:	00 UTC Thu Oct 17	06 UTC Thu Oct 17	12 UTC Thu Oct 17	18 UTC Thu Oct 17	00 UTC Fri Oct 18	06 UTC Fri Oct 18	12 UTC Fri Oct 18	18 UTC Fri Oct 18	00 UTC Sat Oct 19

Viewing Options

Choose an accumulation for the specified time:

Choose a 24-hour period for the specified amount:

00Z Oct 17
06Z Oct 17
12Z Oct 17
18Z Oct 17
00Z Oct 18
06Z Oct 18
12Z Oct 18
18Z Oct 18
00Z Oct 19

Map Overlays

State Boundaries

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


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