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Automated Model Discussion:
December 18, 2007
  Area Covered By Snow:50.7%
  Area Covered Last Month:5.8%
Snow Depth
  Average:4.0 in
  Minimum:0.0 in
  Maximum:560.2 in
  Std. Dev.:7.2 in
Snow Water Equivalent
  Average:0.7 in
  Minimum:0.0 in
  Maximum:239.6 in
  Std. Dev.:1.4 in
more... Metric Units...
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Snow Water Equivalent
Thumbnail image of Modeled Snow Water Equivalent
Animate: Season --- Two weeks --- One Day
Snow Depth
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Average Snowpack Temp
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SWE Change
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Snow Precipitation
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Snow Melt
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Blowing Snow Sublimation
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Surface Sublimation
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Non-Snow Precipitation
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Weather Summary

A strong and deepening surface low over southeastern Canada yesterday morning continued moving northeastward yesterday. Six to 10 inches of snowfall occurred in northern Maine, with similar amounts occurring in western New York due to lake effects. In the Northwest, warm onshore flow ahead of a surface low caused up to 1/2 foot of snowfall in the Cascades, Trinity Mountains, and northern Sierra Nevada yesterday.

The coterminous U.S. snowpack remains cool over most of its extent except for warm temperatures across the West Coast states due to the strong onshore flow yesterday. Warm conditions also are present at lower elevations in the Southwest. Slow snowmelt occurred yesterday at lower elevations in these areas as well as the Southern Plains.

A weak surface low over the Upper Midwest will move eastward through the Great Lakes today and the East tomorrow, bringing light snowfall in the Northeast.

Active weather will be present in the West through Thursday. More than a foot of snowfall is expected at the higher elevations of the Northwest through the Northern Rockies, northern Great Basin, and Sierra Nevada today through Thursday.

Snow Reports

Top Ten:Metric Units...
Station IDNameElevation
(feet)
Snowfall
(in)
Duration
(hours)
Report Date / Time(UTC)
34.7864_076.8594NEWPORT (754NEWP)162.00012007-12-17 16
44.2478_072.9625HANKSVILLE (287HANK)90218.300102007-12-17 14
44.6397_073.1108MILTON (118MIL)30218.000102007-12-17 12
44.1672_073.2544VERGENNES (168VERG)18717.800102007-12-17 13
44.4906_073.1114ESSEX JUNCTION (376ESS)34417.600102007-12-17 14
44.0422_072.6039BROOKFIELD (223BRO)127317.500102007-12-17 12
44.5881_072.0889WHEELOCK (560WHEE)81017.000102007-12-17 13
44.9058_073.8014ELLENBURG DEPOT (377ELL)88317.000102007-12-17 14
44.6331_072.0261SUTTON (454SUT)122715.700102007-12-17 12
44.4669_073.1714SOUTH BURLINGTON (24SOUT)31515.500102007-12-17 14

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

Model Assimilation

NOHRSC Airborne Snow Survey Program



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