Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 22, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 1, 2001, 7:51 PM CDT for Chippewa County, Wisconsin. It was in force for 39 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 1, 2001, 7:51 PM CDT (00:51 UTC)
- Expired
- May 1, 2001, 8:30 PM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Chippewa County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 1, 7:55 PM CDT | Thunderstorm Wind 55 E | Bloomer, WI | Several trees toppled over roads. |
| May 1, 8:10 PM CDT | Thunderstorm Wind 60 E | Bloomer, WI | Roof blown off Moose Lodge, numerous trees and power lines down. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 1, 3:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.9 hours before the alert went out and 167 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
- 453 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1677 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -70 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 020051 SVRMSP WIC017-020130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 751 PM CDT TUE MAY 1 2001 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN * UNTIL 830 PM CDT * AT 751 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL 13 MILES SOUTHWEST OF BLOOMER...OR ABOUT 13 MILES NORTHWEST OF EAU CLAIRE...MOVING NORTHEAST AT 25 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... LAKE WISSOTA. CHIPPEWA FALLS. BLOOMER. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...S SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4510 9164 4486 9165 4489 9113 4522 9138
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 7:03 PM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 42 min |
| May 1, 7:19 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pierce | 41 min |
| May 1, 7:45 PM CDT | Severe Thunderstorm Warning | MPX | Rusk | 45 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2001Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.