1 thunderstorm wind, as filed by the National Weather Service.
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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 Twin Cities, MN wrote its last area forecast discussion before the first event at Aug 1, 3:00 AM CST, 5 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 400 AM CDT WED AUG 1 2001 FORECAST CONCERN CENTERS ON CONVECTION DURING FIRST PERIOD AND RESULTING HIGH TEMPS. HEAT ADVY NOT NEEDED TODAY AS PRECIP AND CLDS IN WARMEST AREAS SHOULD KEEP HEAT INDICES MORE IN CONTROL DESPITE STARTING OUT QUITE WARM...BUT WL NEED TO BE WATCHED THIS MORNING AS COOL FRONT NOW IN WRN COUNTY WARNING AREA WILL BE MOVING SLOWLY EWD. DEWPTS TO RMN IN 70S ACRS ERN AREA THROUGH MUCH OF DAY BUT HIGH TEMPS LKLY TO BE A BIT COOLER THAN TUE. COOL FNT ON LN FM KAXN TO KMML TO MOV TO VCNTY OF STC AROUND 12Z AND MSP AROUND 18Z. LOW LEVEL CONVERGENCE NOT AS STRONG DUE TO LOW LEVEL FLOW BCMING MORE SWLY THIS MORNING. IN ADDITION...LINE OF CONVECTION FROM NRN IA INTO FAR WRN WI HAS DEVELOPED ON NOSE OF PIVOTING 40KT LOW LEVEL JET...WHICH HAS BEEN SEVERLY LIMITING CONVECTION FARTHER WEST. MORE CONVECTION FORMING IN SERN SD IN A BIT MORE IMPRESSIVE LOW LEVEL CONVERGENCE...TRENDING TO THE NORTHEAST. BETWEEN THICKNESS DIFLUENCE...MOISTURE PLUME AND WEAK LOW LEVEL CONVERGENCE...BELIEVE SCT -SHRA/-TSRA A THREAT TO CONTINUE OVER ERN/SRN AREAS THIS MORNING WITH INSTABILITY AXIS REMAINING OVER FAR SRN/ERN AREAS THIS AFTN. WL USE POPS OR SCT WORDING DEPENDING UPON LAST LOOK AT RADAR. BEST LOW LEVEL FORCING AND THETA E OMEGA TO RMN MOSTLY SOUTH OF AREA HOWEVER. FEW PATCHES OF LOW LEVEL CLOUDS IN ND MAY BRUSH NRN AREAS BUT SHOULD ERODE WITH DRIER NWLY FLOW. INCREASING ZONAL FLOW EVIDENT ON WV IMAGERY WL USHER DRIER AND SLIGHTLY COOLER CONDITIONS INTO ENTIRE AREA TONIGHT. PATCHY FOG THREAT FOR TNGT BUT WL HOLD OFF FOR NOW WITH BENIGN CONDITIONS ON THU WITH NEARBY HIGH PRES. RIDGE RIDER POSSIBLE THU NIGHT BUT WITH BUILDING RIDGE ON FRI...THREAT FOR PRECIP MINIMAL AND WL REMOVE FROM EFP. MORE HOT AND HUMID CONDITIONS FOR EFP. RAISED TEMPS SLIGHTLY. .MSP...NONE., KAVINSKY
The Minneapolis radar (KMPX), 55 km away, was scanning. The volume nearest the first event began at 14:31 UTC.
1 thunderstorm wind. Local standard time, as filed.
An isolated microburst hit the Maple Lake area when scattered thunderstorms rolled through central Minnesota. Winds lifted and overturned a construction trailer at Holy Cross Church. One man inside the trailer escaped without any injuries. The church was untouched.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2001Every state in 2001This day in weather historyWarnings in Minnesota, August 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 2026-09-24. Each event’s entry at NCEI: 5267275.