Issued 1145 am CST Tue Mar 5 2013 (updated 620 pm)
Doppler radar snowfall estimates are below. This is a pretty typical snow, with a Snow to Liquid Water ratio of 12 to 1. What that means that if 12 inches of snow falls in your rain gauge, if you melted it, it would be 1 inch of liquid water. So if it had fallen as rain, you would have got 1 inch of rain.
Anyhow, the two loops below depict the radar estimated snowfall. Actual spotter reports are not included in this analysis. It is simply derived from the KMKX Sullivan WI Dopper Radar. The first snow map below shows the storm total snow from last night through 6 pm today. The snowfall color code legend is at the upper left. The dark orange areas from Delavan and Janesville to the Wisconsin Dells indicates 6-8" of snow. 3-5" of snow has fallen in Milwaukee and Waukesha Counties, with 4-6" in Racine and Kenosha. The lighter orange areas in Dane County and in the Rockford IL area are more than 8".
The 2nd map below this shows you the latest spotter reports for comparison.
The 3nd map below shows the estimated hourly snowfall from 7 am CST this morning to 6 pm. Dark blue areas show where at least 0.5" of snow likely fell, with orange areas showing where 1" or more fell during that hour. Lighter orange areas show heavy snowfall of 1.5 to 2" per hour.
Jeff Craven, Science and Operations Officer
Morgan Brooks, Meteorologist
National Weather Service, Milwaukee/Sullivan WI