Jan 21, 2008 Snowfall Event

Dry, fluffy snow fell over all of central and southern Wisconsin on Monday Jan 21st, and ended from west to east overnight into the pre-dawn hours of Jan 22nd.  In the south-central, southeast, and east-central parts of the state that comprise the County Warning Area of the Milwaukee/Sullivan National Weather Service Office, anywhere from 6 to slightly over 14 inches fell.  Only Kenosha County had less than 6 inches, with 2-5 inches reported in that area.

The liquid content of the snow, in those areas with at least 6 inches of new snow, ranged from 0.25 to 0.50 inches.  This translates to a snow to water ratio of 20:1 to 35:1, depending on your exact location.  Some locations picked up more of the bigger flakes from time to time, while other locations only had smaller needle flakes.  Overall, most locations had a ratio around 25:1.  Now you know what kind of snow typically falls in the Rocky Mountains...that powder stuff.

Here’s a listing of some of the greatest amounts in each county...

Ozaukee County...14.2" at 2N Saukville, 12" in the village of Lakefield near Cedarburg, and 10.2" at a point 1.2 SW Port Washington

Washington County....13" in Jackson, 11" at 2E Holy Hill and West Bend, 10.2" in Germantown, and 10" at 2SW Wayne

Sheboygan County...12.6" in Random Lake, and 11.6" on the southwest side of Sheboygan, and 11" in Howards Grove

Dodge County...12" near Juneau, and 10 to 11 inches  near Horicon

Milwaukee County...11" on the north side of Brown Deer, 10.2" about 1S of UW-Milwaukee campus, 10" at a location 1.7ENE West Allis, and 7.6" at Milwaukee Mitchell Field

Dane County...10.2" at 1N Sun Prairie, 9.5" in the Nakoma area on the southwest side of Madison, and 8.8" at Madison Truax Field

Waukesha County...an esimated 10" in the Menomonee Falls area, 9.5" at 4W Brookfield, and 8" in Waukesha

Walworth County...9" in Whitewater

Rock County...9" at 9NW Beloit, an estimated 8" near the northern border, 7.8" in Orfordville, and 7.5 inches in Clinton

Jefferson County...8.5" at a location 1.2 SW Palmyra, and 8.3" at the Milwaukee/Sullivan office

Fond du Lac County...8.2" in the St. Peter area near Taycheedah, and 8" in the Ashford area west of Campbellsport

Sauk County...8" in La Valle, and 7.7" in Reedsburg

Lafayette County...8" in South Wayne, and 7" in Arygle

Green County...an esitmated 8" northeast of New Glarus, and 7.5" in Monroe

Racine County...7" in Racine, and 6" in Union Grove

Iowa County...estimated 6.5 to 7" east of Barneveld, and 6" in Dodgeville

Green Lake County...7" in Berlin, and 6.4" in Markesan

Marquette County...estimated 6 to 6.5 inches over the southeast half of the county

Columbia County...an estimated 8" near Columbus, and 6.5" in Lodi

Kenosha County...an estimated 5" along the northern border, 4" in Twin Lakes

snow map

Here are some radar images - note how the snow moved northeast and intensified.  There were specks of 35 dBZ returns on our WSR-88D Doppler radar which indicated very good ice crystall and snowflake development that ultimately lead to the snowfall totals indicated above.  The sequence below runs from roughly at the top of the hour, from 12 P.M. through 6 P.M.  Note how the more intense radar returns seem to favor the Dodge County-Washington County-Ozaukee County area.

noon radar

1 pm radar

2pm radar

4pm radar

5pm radar

6pm radar

End



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