National Snow Analyses

Click On Map for Regional Analyses	Automated Model Discussion: May 11, 2009   Area Covered By Snow: 3.5%   Area Covered Last Month: 14.1% Snow Depth   Average: 1.5 in   Minimum: 0.0 in   Maximum: 839.0 in   Std. Dev.: 9.7 in Snow Water Equivalent   Average: 0.5 in   Minimum: 0.0 in   Maximum: 406.3 in   Std. Dev.: 3.6 in
	more...	Metric Units...

Snow Water Equivalent Animate: Season --- Two weeks --- One Day	Snow Depth Animate: Season --- Two weeks --- One Day	Average Snowpack Temp Animate: Season --- Two weeks --- One Day
SWE Change Animate: Season --- Two weeks --- One Day	Snow Precipitation Animate: Season --- Two weeks --- One Day	Snow Melt Animate: Season --- Two weeks --- One Day
Blowing Snow Sublimation Animate: Season --- Two weeks --- One Day	Surface Sublimation Animate: Season --- Two weeks --- One Day	Non-Snow Precipitation Animate: Season --- Two weeks --- One Day

Snow Reports

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

Model Assimilation

A data assimilation occurred on May 6 in the Sierra Nevada, in Colorado, and from central Nevada through southern Idaho. In the Sierra Nevada, underdone precipitation and overdone snowmelt during the past week necessitated the addition of 2 to 4 inches of snow water. Up to 2 inches of water was added at higher elevations in the Great Basin to the southern rim of the Snake River Valley in Idaho, mainly due to overdone modeled snowmelt. In central Colorado to southern Wyoming, as with the Sierra Nevada, underdone precipitation and overdone snowmelt caused the addition of 2 to 3 inches of snow water. Slower-than-actual snowmelt in the past few days in the San Juan mountains forced the addition of around 4 inches of water.

NOHRSC Airborne Snow Survey Program

The Airborne program has no scheduled flights in this region for the week of May 11, 2009.

National Weather Service National Operational Hydrologic Remote Sensing Center 1735 Lake Drive W. Chanhassen, MN 55317
Contact NOHRSC Glossary Credits Page last modified: Feb 24, 2009	About Us Disclaimer Privacy Policy Career Opportunities