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Regional Snow Analyses: Northern Rockies

Snow ReportsModel Assimilation ScheduleSnow Survey Schedule

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Imagemap to select NSA subregion Northwest Northern Rockies Intermountains Great Basin Sierra Nevada Western Coastal Southwest Central Rockies Western Plains Upper Midwest Midwest Northern Great Lakes South Southern Appalachia Southern Great Lakes Allegheny Front Eastern Coastal Northeast National
Automated Model Discussion:
April 29, 2025
  Area Covered By Snow:54.2%
  Area Covered Last Month:74.6%
Snow Depth
  Average:20.4 in
  Minimum:0.0 in
  Maximum:721.3 in
  Std. Dev.:27.0 in
Snow Water Equivalent
  Average:8.6 in
  Minimum:0.0 in
  Maximum:428.6 in
  Std. Dev.:11.9 in
more... Metric Units...
Select Region and Date
Snow Water Equivalent
Thumbnail image of Modeled Snow Water Equivalent
Animate: Season --- Two weeks --- One Day 		Snow Depth
Thumbnail image of Modeled Snow Depth
Animate: Season --- Two weeks --- One Day 		Average Snowpack Temp
Thumbnail image of Modeled Average Snowpack Temp
Animate: Season --- Two weeks --- One Day
SWE Change
Thumbnail image of Modeled SWE Change
Animate: Season --- Two weeks --- One Day 		Snow Precipitation
Thumbnail image of Modeled Snow Precipitation
Animate: Season --- Two weeks --- One Day 		Snow Melt
Thumbnail image of Modeled Snow Melt
Animate: Season --- Two weeks --- One Day
Blowing Snow Sublimation
Thumbnail image of Modeled Blowing Snow Sublimation
Animate: Season --- Two weeks --- One Day 		Surface Sublimation
Thumbnail image of Modeled Surface Sublimation
Animate: Season --- Two weeks --- One Day 		Non-Snow Precipitation
Thumbnail image of Modeled Non-Snow Precipitation
Animate: Season --- Two weeks --- One Day

Snow Reports

Top Ten:Metric Units...
Station IDNameElevation
(feet)		Snowfall
(in)		Duration
(hours)		Report Date / Time(UTC)
45.6000_111.9600MT MADISON 5 SW PONY MESONET (X4561119)861912.00024.0002025-04-28 14:00
45.4100_112.9600MT BEAVERHEAD 8 ENE POLARIS MESONET (X4541129)83698.00024.0002025-04-28 14:00
45.1700_113.5800MT BEAVERHEAD 16 SSW JACKSON OTHER FEDERAL (X4511135)85076.00024.0002025-04-28 13:00
44.9600_111.2900MT GALLATIN 21 S BIG SKY MESONET (X4491112)90355.00024.0002025-04-28 14:00
45.0200_111.8500MT MADISON 15 SSW CAMERON MESONET (X4501118)87665.00024.0002025-04-28 13:00
45.5000_110.9700MT GALLATIN 13 ESE GALLATIN GATEWAY MESONET (X4551109)67363.00024.0002025-04-28 14:00
46.6700_110.3300MT MEAGHER 12 ENE CHECKERBOARD MESONET (X4661103)76613.00024.0002025-04-28 14:00
44.7900_111.7100MT MADISON 14 NNE LAKEVIEW MESONET (X4471117)80682.00024.0002025-04-28 14:00
ID-BN-7KETCHUM 2.2 SSE, ID57350.30024.0002025-04-28 13:00
MT-GN-11BOZEMAN 1.5 SSE, MT49310.00124.0002025-04-28 13:00

Note: these data are unofficial and provisional.
Zip codes (where available) of observations will be included in text files after October 7, 2008.

Station Snowfall Reports
Station Snow Water Equivalent Reports
Station Snowdepth Reports

Interpolated Snowfall Products



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