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 Jul 31, 1:50 PM CST, 4 hours 55 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 250 PM CDT TUE JUL 31 2001 EXTREME INSTABILITY IN PLACE TNT WITH LIFTED INDICES -3 TO -7 AND CAPES 2000 TO OVER 3000. STRONG 50 KTS+ LLJ DEVELOPS THIS EVENING AND WITH THETA-E RIDGE BUILDING OVER NORTHERN MN...THE STAGE WILL BE SET FOR THUNDERSTORMS WITH HEAVY RAIN. MODELS IN FAIRLY GOOD AGREEMENT WITH MOVEMENT OF LOW/FRONTAL SYSTEM TNT... THEN AVN PUSHES IT THRU NWRN WI WED MUCH FASTER THAN ETA. CHOSE TO GO WITH THE SLOWER AND MORE CONSERVATIVE ETA...AND KEPT CHC OF PRECIP FOR ERN CWA INTO WED MORNING. PRECIPITALBE WATER OVER 2 INCHES...AND RAINFALL AMOUNTS OVER 3 INCHES NOT OUT OF THE QUESTION WITH SUCH A WATER-LOGGED ATMOSPHERE. WILL GO WITH FLASH FLOOD WATCH FOR NORTHERN MN...GENERALLY NORTH OF A LINE FROM WALKER TO TWO HARBORS. FLASH FLOOD GUIDANCE RANGES FROM 3-4 INCHES. RADAR ESTIMATES AVERAGE 1 TO 2 INCHES FOR MUCH OF THE BORDER REGION WITH SOME 4-5 INCHE AMOUNTS FROM OVERNIGHT AND THIS AFTERNOONS STORMS..SO GROUND IS VERY SATURATED. HIGH PRESSURE BUILDS IN WEDNESDAY...FOR A DRIER AFTERNOON. HIGH KEEPS HOLD THROUGH THURSDAY. .DLH...FLASH FLOOD WATCH NORTHERN MN CLC
The Duluth radar (KDLH), 245 km away, was scanning. The volume nearest the first event began at 00:45 UTC.
1 thunderstorm wind. Local standard time, as filed.
Numerous trees were reported blown down along State Highway 11 between Birchdale and Pelland. The wind speed is estimated.
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, July 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: 5261936.