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 Duluth, MN wrote its last area forecast discussion before the first event at Aug 8, 1:30 AM CST, 3 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 230 AM CDT WED AUG 8 2001 FORECAST CONCERNS ON MORNING CONVECTION...DAYTIME HEAT AND THEN CHANGE IN AIRMASS IN LATER PERIODS. MODELS OVERALL IN GENERAL AGREEMENT AND FOLLOWED WITH ETA/AVN BLEND. IR IMAGES SHOWING MCS HAVING GOOD STRUCTURE AS IT MOVES INTO NORTHWEST MINNESOTA. THICKNESS PACKING TAKES THIS COMPLEX SOUTHEAST THIS MORNING... AFFECTING MAINLY SOUTHWEST PORTION OF CWA. BOW NATURE OF THIS COMPLEX MAY KEEP IT A LITTLE FURTHER NORTH HOWEVER. BY MID MORNING CONVECTION DIMINISHES AS CAP BUILDS. HOT AND HUMID CONDITIONS WILL DOMINATE MUCH OF THE REGION. SURFACE FRONT BEGINS TO APPROACH THE AREA LATER IN THE DAY FOR THE CHANCE OF MORE CONVECTION...MAINLY NORTH. FRONT THEN MOVES SOUTHEAST TONIGHT. COOL AIR AT THE SURFACE A LITTLE OUT OF PHASE WITH UPPER LEVEL FEATURES...RESULTING IN LESSER AMOUNTS OF PRECIP. WILL KEEP BEST CHANCES ACROSS NORTHWEST AREAS. NORTHWEST WINDS THEN HELP TO SPREAD COOLER AND DRIER AIR SOUTHEASTWARD ON THURSDAY. WILL KEEP MORNING SHOWER CHANCES GOING FOR NORTHWEST WISCONSIN...BEFORE FRONT MOVES FURTHER SOUTH. NO MAJOR CHANCES MADE TO THE EXTENDED WITH COOLER NORTHWEST FLOW TO DOMINATE THROUGH THE WEEKEND. .DLH...NONE. TOMALAK
The Duluth radar (KDLH), 55 km away, was scanning. The volume nearest the first event began at 10:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
Hundreds of trees were blown down, damaging buildings and vehicles. Falling trees and power poles caused widespread power outages in the Brimson area.
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: 5269063.