Alert archive / Iowa / Tornado Watches in 2001
Tornado Watch 182
The Storm Prediction Center issued this tornado watch at May 1, 2001, 3:00 PM CDT for 30 counties in Iowa; 30 counties in Minnesota; 9 counties in Wisconsin. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 1, 2001, 3:00 PM CDT (20:00 UTC)
- Expired
- May 1, 2001, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 69 counties
Buena Vista County, IA, Butler County, IA, Calhoun County, IA, Cerro Gordo County, IA, Cherokee County, IA, Chickasaw County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Floyd County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Howard County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Mitchell County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Webster County, IA, Winnebago County, IA, Woodbury County, IA, Worth County, IA, Wright County, IA, Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Wright County, MN, Buffalo County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI, Taylor County, WI, Trempealeau County, WI
The radar
The Minneapolis radar (KMPX), 159 km from the middle of the area, began a volume at 20:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
40 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 3:51 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 24 min |
| May 1, 4:08 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 22 min |
| May 1, 4:09 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 31 min |
| May 1, 4:24 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Sibley | 51 min |
| May 1, 4:35 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 20 min |
| May 1, 4:36 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault | 39 min |
| May 1, 4:36 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 39 min |
| May 1, 4:42 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 28 min |
| May 1, 4:50 PM CDT | Tornado Warning | MPX | Blue Earth | 25 min |
| May 1, 4:55 PM CDT | Tornado Warning | MPX | Carver | 35 min |
| May 1, 5:06 PM CDT | Severe Thunderstorm Warning | MPX | Waseca | 39 min |
| May 1, 5:09 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 31 min |
| May 1, 5:13 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin | 47 min |
| May 1, 5:18 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 42 min |
| May 1, 5:21 PM CDT | Tornado Warning | MPX | Anoka, Hennepin | 24 min |
| May 1, 5:27 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 48 min |
| May 1, 5:35 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 55 min |
| May 1, 5:37 PM CDT | Tornado Warning | MPX | Waseca | 23 min |
| May 1, 5:43 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Mower | 62 min |
| May 1, 5:49 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago | 41 min |
| May 1, 6:03 PM CDT | Tornado Warning | MPX | Steele, Waseca | 42 min |
| May 1, 6:10 PM CDT | Severe Thunderstorm Warning | MPX | Pierce, Saint Croix | 50 min |
| May 1, 6:31 PM CDT | Severe Thunderstorm Warning | MPX | Washington | 29 min |
| May 1, 6:45 PM CDT | Severe Thunderstorm Warning | ARX | Dodge | 30 min |
| May 1, 6:47 PM CDT | Tornado Warning | MPX | Pierce | 28 min |
| May 1, 6:55 PM CDT | Severe Thunderstorm Warning | ARX | Mower | 65 min |
| May 1, 7:03 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 42 min |
| May 1, 7:05 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 40 min |
| May 1, 7:06 PM CDT | Tornado Warning | ARX | Mower | 39 min |
| May 1, 7:06 PM CDT | Tornado Warning | MPX | Freeborn | 24 min |
| May 1, 7:19 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pierce | 41 min |
| May 1, 7:27 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Olmsted | 63 min |
| May 1, 7:30 PM CDT | Tornado Warning | MPX | Freeborn | 30 min |
| May 1, 7:44 PM CDT | Tornado Warning | ARX | Mower | 46 min |
| May 1, 7:51 PM CDT | Tornado Warning | ARX | Olmsted | 39 min |
| May 1, 7:51 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 39 min |
| May 1, 8:03 PM CDT | Tornado Warning | ARX | Fillmore | 57 min |
| May 1, 8:10 PM CDT | Tornado Warning | ARX | Winona | 50 min |
| May 1, 8:43 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Trempealeau | 62 min |
| May 1, 8:43 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 62 min |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.0 hours before the alert went out and 158 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 771 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS9 KMKC 011945 SEL2 SEL2 MKC WW 011939 IAZ000-MNZ000-WIZ000-020200- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 182 STORM PREDICTION CENTER NORMAN OK 239 PM CDT TUE MAY 1 2001 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN IOWA SOUTHERN AND EAST CENTRAL MINNESOTA WEST CENTRAL WISCONSIN EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 300 PM UNTIL 900 PM CDT. TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTHWEST OF FORT DODGE IOWA TO 50 MILES NORTHWEST OF EAU CLAIRE WISCONSIN. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...THUNDERSTORMS ARE EXPECTED TO DEVELOP AND INTENSIFY ALONG STRONG COLD FRONT NOW MOVING ACROSS WRN MN AND EXTREME NWRN IA. AIR MASS BECOME VERY UNSTABLE WITH SBCAPE TO 3000 J/KG. EXAMINATION OF WDL PROFILER AND MPX VAD WINDS SHOWS SUFFICIENT VEERING AND INCREASING SPEED WITH HEIGHT TO SUPPORT STORM ROTATION ...WITH POTENTIAL FOR VERY LARGE HAIL...DAMAGING WIND GUSTS AND ISOLATED TORNADOES. ADDITIONAL WW WILL BE ISSUED SHORTLY FROM ERN NEB INTO CENTAL AND SWRN IA. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. X EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24035. ...WEISS ;452,0901 421,0924 421,0963 452,0941;
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Boone, Carroll, Cass, Crawford, Dallas and 9 more | 6 hr |
| May 1, 5:00 PM CDT | Tornado Watch | SPC | Aitkin, Carlton, Chisago, Cook, Isanti, Itasca and 6 more | 5 hr |
Nearby
Tornado Watches in Iowa, 2001Tornado Watches in Minnesota, 2001Tornado Watches in Wisconsin, 2001Every tornado watch in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.