1 heavy snow, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before the first event at Apr 15, 1:30 PM CST, 7 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 230 PM CDT SUN APR 15 2001 FORECAST PROBLEM IS PRECIP DURATION AND TIMING AS WELL AS TEMPS. CLOSED UPR CIRCULATION ALONG THE CAN/MN BDR IS MOVG SEWD. AN AREA OF STRONG DIVERGENCE DENOTED BY THE MOTION OF THE PRECIP ELEMENTS ON THE 88D ON THE SERN SIDE OF THE CIRCULATION CREATED A SNOW BURST IN THAT AREA THIS AFTN. THAT IS ONE SPOKE OF ENERGY, BUT THERE ARE OTHTER SUCH SPOKES ROTATING ARND THE LOW AND WILL BE THE BASIS FOR SUBSEQUENT SNOW SHOWER EPISODES. BEHIND IT, TO THE WEST, CLOUDS ARE BREAKING OPEN WHICH WOULD INDICATE THE SINKING PORTION OF THAT FEATURE. SNOW WILL LET UP FOR AWHILE BUT BEGIN AGAIN LATER AS OTHER VORT AND COLD POCKET FEATURES ROTATE THRU. WORDING WILL HAVE TO REFLECT THAT. GDNC PACKAGES ARE WELL IN SYNCH ON THE FEATURES NOW, BUT THE ETA ONCE AGAIN HAS A BETTER NEAR TERM FIT. WE WILL USE THE ETA FOR OUR FCST. THE TEMP GDNC WILL BE A COMPROMISE BETWEEN THE FWC AND MAV. .DLH...NONE. CS
The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
Lake effect snow totaling 9 inches fell in Iron River. Cornucopia reported 6.5 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2001Every state in 2001This day in weather historyWarnings in Wisconsin, April 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 5239477.