Thunderstorm Wind, Grant
- When
- September 7, 4:50 PM CST
- Where
- Grant County, 2 mi W of Mt Hope
- Measured
- 53 kt (61 mph)
- Property damage
- $400
- Crop damage
- $12,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.967, -90.900
Tornado and Hail in Wisconsin, September 7, 2001
A mobile home was hit by a tornado between Cataract and Angelo (Monroe County) along County Road Q, completely demolishing the structure and tossing it about 30 feet. A woman was in the mobile home when the storm hit and managed to crawl out, in spite of sustaining minor injuries.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 1
- Property damage
- $30,000
- Crop damage
- $74,000
- Events
- 10
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.
What happened
The episode as NWS ARX wrote it up.
A mobile home was hit by a tornado between Cataract and Angelo (Monroe County) along County Road Q, completely demolishing the structure and tossing it about 30 feet. A woman was in the mobile home when the storm hit and managed to crawl out, in spite of sustaining minor injuries. Elsewhere across southwest Wisconsin, thunderstorm winds knocked down trees and power lines.
What forecasters said that day
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 La Crosse, WI wrote its last area forecast discussion before the first event at Sep 7, 2:22 PM CST, 2 hours 28 minutes earlier.
Area forecast discussion, Sep 7, 2:22 PM CST, 2 hours 28 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
322 PM CDT FRI SEP 7 2001
MAIN FORECAST PROBLEM CONTINUES TO BE THE WET SCENARIO FOR THE
FORECAST AREA THROUGH SATURDAY.
MORNING ANALYSIS DEPICTS SEVERAL DISTURBANCES. THE FIRST OF NOTE
BROUGHT THE THUNDERSTORMS THROUGH THE FORECAST AREA THIS MORNING.
THIS HAS MOVED OUT AND IS NO LONGER OF GREAT CONCERN. THE SECOND IS
NOW MOVING OUT OF KANSAS AND INTO IOWA...THROUGH WW714. THIS HAS
INDUCED A WEAK FRONTAL WAVE ALONG THE COLD FRONT WHICH EXTENDS
THROUGH WESTERN IOWA AND INTO MINNESOTA AS OF 18Z. CONVERGENCE
AHEAD OF THE FRONTAL WAVE IN CONJUNCTION WITH INSTABILITY HAS CAUSED
THUNDERSTORMS TO DEVELOP. THIRD DISTURBANCE NEAR THE OKLAHOMA
PANHANDLE BEGINNING TO MOVE TO THE NORTHEAST. ADDITIONAL SHOWERS
AND THUNDERSTORMS DEVELOPING ON ITS NORTHEASTERN FLANK. FINALLY...
LAST DISTURBANCE OVER SOUTHERN CANADA CONTINUES TO DROP SOUTHEAST...
WITH SEVERAL SHORTWAVES ROTATING ABOUT IT.
MODEL INITIALIZATION REASONABLE THIS MORNING. EXPECT REDEVELOPMENT
OF THUNDERSTORMS ALONG THE FRONT. ENVIRONMENTAL FLOW SHOULD BRING
THEM NORTHEAST...PARALLEL TO THE FRONT. PRECIPITABLE WATERS RANGING
FROM 1.5 TO OVER 2 INCHES REMAIN ACROSS THE FORECAST AREA. RAINFALL
AMOUNTS ENDING AT 7 AM THIS MORNING AVERAGED 1 TO 2 INCHES FROM
WINONA-DECORAH AND EAST. RAINFALL THIS AFTERNOON PRODUCED ANOTHER
1/2 TO 1 1/2 INCHES ACROSS THIS SAME AREA. ADDITIONAL CONVECTION
TONIGHT AND SATURDAY WILL POSE THE THREAT OF FLASH FLOODING DUE TO
ITS MOTION...TRAINING ALONG THE FRONT. WILL THEREFORE ISSUE A
FLASH FLOOD WATCH FOR THESE AREAS.
THE DISTURBANCE OVER THE OKLAHOMA PANHANDLE WILL MOVE NORTHEAST
SATURDAY. ASSOCIATED LOW PRESSURE WILL MOVE NORTHEAST AS THE
SIGNIFICANT UPPER LEVEL SYSTEM OVER SOUTHERN CANADA GRADUALLY MOVES
IN. SEVERAL PERIODS OF SHOWERS AND THUNDERSTORMS ARE POSSIBLE AS A
RESULT.
TEMPERATURES QUITE DIFFICULT SINCE THE FRONT SHOULD BE TRAVERSING
RIGHT THROUGH THE FORECAST AREA AT 08/12Z. AS A RESULT...WILL KEEP
OVERNIGHT LOWS NEAR PERSISTENCE FOR AREAS EAST AND SOUTH OF LA
CROSSE.
COOLER AIR WILL SPILL INTO THE FORECAST AREA SATURDAY NIGHT AS THE
SYSTEM EXITS. MAY PULL BACK ON PRECIPITATION CHANCES GIVEN
SPEED/TIMING OF SYSTEM EXITING. NOT VERY COMFORTABLE DOING SO GIVEN
THE NUMBER OF WEAK DISTURBANCES MOVING THROUGH THE FLOW.
THE UPPER LEVEL COLD POOL GRADUALLY MOVES DOWN SUNDAY AND INTO THE
EARLY PORTION OF NEXT WEEK. THIS WILL BRING ADDITIONAL WEAK
DISTURBANCES THROUGH THE FORECAST AREA...ALONG WITH PRODUCING A
CHANCE OF INSTABILITY DRIVEN SHOWERS. WILL CONTINUE SMALL CHANCE
OF PRECIPITATION THROUGH THE MEDIUM RANGE PERIOD...AS ASCERTAINING
THE TIMING AND AMPLITUDE OF THESE SYSTEMS THAT FAR OUT A BIT
UNREALISTIC.SYSTEM TOO DIFFICULT.
COORDINATED WITH MKX/GRB/DVN.
.LSE...FLASH FLOOD WATCH TONIGHT AND SATURDAY...IAZ010-011-029-030-
MNZ088-096-WIZ017-029-032>034-041>044-053>055-061.
KRCIn the hours before
Special weather statement, Sep 7, 10:55 AM CST, 5 hours 55 minutes before
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034- 041>044-053>055-061-080200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 1155 AM CDT FRI SEP 7 2001 HAZARD - SLIGHT RISK OF SEVERE THUNDERSTORMS...WITH THE MAIN THREAT BEING DAMAGING WIND...ALONG WITH POTENTIAL FOR LOCALLY HEAVY RAIN. TIMING - THIS AFTERNOON AND TONIGHT. LOCATION - AREAS EAST AND SOUTH OF ROCHESTER MINNESOTA...AND MOST OF NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN. DISCUSSION - ABUNDANT LOW LEVEL MOISTURE REMAINS IN PLACE ACROSS THE AREA...WHILE A VIGOROUS UPPER LEVEL DISTURBANCE LIFTS OUT INTO THE CENTRAL PLAINS. THE POTENTIAL FOR LOCALLY HEAVY RAIN DEFINITIVELY CONTINUES...ESPECIALLY TONIGHT...WHEN THE UPPER LEVEL DISTURBANCE APPROACHES THE AREA. THIS AFTERNOON AND EVENING...WIND SHEAR INCREASES...SO A FEW STORMS MAY HAVE THE POTENTIAL FOR DAMAGING WIND. SPOTTER INFORMATION - SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON INTO THE EVENING HOURS. RAINFALL REPORTS WILL CERTAINLY BE NEEDED...ESPECIALLY DURING THE OVERNIGHT HOURS. THOMPSON
Special weather statement, Sep 7, 2:30 PM CST, 2 hours 20 minutes before
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034- 041>044-053>055-061-080300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 330 PM CDT FRI SEP 7 2001 HAZARD - SLIGHT RISK OF SEVERE THUNDERSTORMS...WITH THE MAIN THREAT BEING DAMAGING WIND...ALONG WITH POTENTIAL FOR LOCALLY HEAVY RAIN. TIMING - THROUGH 10 PM THIS EVENING FOR THE SEVERE WEATHER POTENTIAL...AND ALL OF TONIGHT FOR HEAVY RAIN POTENTIAL. LOCATION - AREAS EAST AND SOUTH OF ROCHESTER MINNESOTA...AND MOST OF NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN. DISCUSSION - ABUNDANT LOW LEVEL MOISTURE REMAINS IN PLACE ACROSS THE AREA...WHILE A VIGOROUS UPPER LEVEL DISTURBANCE LIFTS OUT INTO THE CENTRAL PLAINS. THE POTENTIAL FOR LOCALLY HEAVY RAIN DEFINITIVELY CONTINUES...ESPECIALLY TONIGHT...WHEN THE UPPER LEVEL DISTURBANCE APPROACHES THE AREA. THROUGH THIS EVENING...INCREASING WIND SHEAR SUPPORTS A FEW STORMS TO HAVE THE POTENTIAL FOR DAMAGING WIND ACROSS PARTS OF NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN. SPOTTER INFORMATION - SPOTTER ACTIVATION WILL PROBABLY BE NECESSARY INTO THE EVENING HOURS. RAINFALL REPORTS WILL CERTAINLY BE NEEDED... ESPECIALLY DURING THE OVERNIGHT HOURS. THOMPSON
Special weather statement, Sep 7, 2:50 PM CST, 2 hours before
IAZ008>011-018-019-029-030-MNZ087-088-094>096-WIZ041>044-053>055-061- 072200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 350 PM CDT FRI SEP 7 2001 ...THUNDERSTORMS MOVING TOWARD NORTHEAST IOWA AND SOUTHWEST WISCONSIN... THUNDERSTORMS THAT HAVE PRODUCED WIND DAMAGE ACROSS PORTIONS OF CENTRAL IOWA WERE MOVING QUICKLY INTO NORTHEAST IOWA. THESE STORMS SHOULD CONTINUE ADVANCING RAPIDLY INTO PARTS OF SOUTHWEST WISCONSIN. THE PRIMARY THREAT CONTINUES TO BE DAMAGING WINDS...AND LOCALLY HEAVY RAIN IS ALSO EXPECTED. PERSONS ACROSS NORTHEAST IOWA...AS WELL AS SOUTHWEST WISCONSIN... SHOULD MONITOR THE LATEST WEATHER INFORMATION FOR POSSIBLE WARNINGS. THOMPSON
Local storm report, Sep 7, 4:33 PM CST, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
533 PM CDT FRI SEP 7 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
...COUNTY LOCATION....
0533 PM FREDERICKSBURG IA 62 MPH TSTM GUST
09/07/01 CHICKASAW REPORTED BY DISPATCHThe radar
The national radar mosaic for the moment the first event began.
Event by event
8 thunderstorm wind, 1 tornado, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Grant
- When
- September 7, 5:04 PM CST
- Where
- Grant County, Mt Hope
- Measured
- 53 kt (61 mph)
- Property damage
- $750
- Crop damage
- $10,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.967, -90.867
Thunderstorm Wind, Grant
- When
- September 7, 5:05 PM CST
- Where
- Grant County, Patch Grove
- Measured
- 53 kt (61 mph)
- Property damage
- $500
- Crop damage
- $8,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.933, -90.967
Thunderstorm Wind, Grant
- When
- September 7, 5:05 PM CST
- Where
- Grant County, Fennimore
- Measured
- 52 kt (60 mph)
- Property damage
- $800
- Crop damage
- $8,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.983, -90.650
Thunderstorm Wind, Grant
- When
- September 7, 5:10 PM CST
- Where
- Grant County, Platteville
- Measured
- 54 kt (62 mph)
- Property damage
- $2,000
- Crop damage
- $14,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.733, -90.483
Thunderstorm Wind, Grant
- When
- September 7, 5:18 PM CST
- Where
- Grant County, Lancaster
- Measured
- 53 kt (61 mph)
- Property damage
- $1,000
- Crop damage
- $10,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.850, -90.717
Thunderstorm Wind, Grant
- When
- September 7, 5:27 PM CST
- Where
- Grant County, Boscobel
- Measured
- 54 kt (62 mph)
- Property damage
- $2,000
- Crop damage
- $12,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.133, -90.700
Tornado, Monroe
- When
- September 7, 5:30 PM CST to 5:32 PM CST
- Where
- Monroe County, 6 mi N of Angelo
- Rating
- F0
- Path length
- 0.3 mi
- Path width
- 30 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $20,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 44.050, -90.783
Thunderstorm Wind, Juneau
- When
- September 7, 6:08 PM CST
- Where
- Juneau County, Necedah
- Measured
- 52 kt (60 mph)
- Property damage
- $2,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 44.033, -90.083
Hail, Crawford
- When
- September 7, 11:05 PM CST
- Where
- Crawford County, Eastman
- Measured
- 1 in hail
- Property damage
- $1,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.167, -91.017
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Kansas, September 7, 2001
- Hail and Damaging Winds in Iowa, September 7, 2001
- Hail and Damaging Winds in Missouri, September 7, 2001
- Damaging Winds in Iowa, September 7, 2001
- Hail and Damaging Winds in Oklahoma, September 7 to 8, 2001
- Tornado and Flood in Oklahoma, September 7, 2001
- Tornadoes and Hail in Kansas, September 7, 2001
- Hail and Damaging Winds in Michigan, September 7 to 9, 2001
- Hail and Damaging Winds in Texas, September 7 to 9, 2001
- Hail and Damaging Winds in Michigan, September 7, 2001
- Tornado in Nebraska, September 7, 2001
- Flooding and Damaging Winds in Wisconsin, September 7, 2001
More
Every storm in Wisconsin in 2001Every state in 2001This day in weather historyThe tornado archive for Wisconsin, 2001Warnings in Wisconsin, September 2001
Sources
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: 5262853, 5262850, 5262851, 5262852, 5262856, 5262855, 5262854, 5262848, 5262849, 5262857.