Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 16, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 27, 1991, 4:20 PM CDT for Eau Claire County, Wisconsin. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- May 27, 1991, 4:20 PM CDT (21:20 UTC)
- Expired
- May 27, 1991, 5:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Eau Claire County, WI
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 9.3 hours before the alert went out and 183 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
- 1238 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 272119 SVRMSP WIC035-272200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 420 PM CDT MON MAY 27 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL WISCONSIN ...EAU CLAIRE COUNTY AT 415 PM...A SEVERE THUNDERSTORM WAS LOCATED JUST SOUTH OF THE CITY OF EAU CLAIRE MOVING TO THE EAST AT 20 MPH. THIS STORM HAS PRODUCE LARGE HAIL AND POWERFULL DOWNBURST WINDS WHICH HAVE BLOWN OVER A LARGE ELM TREE SOUTH OF EAU CLAIRE. SOME OF THE TOWNS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE...BRACKET...FALL CREEK AND AGUSTA. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. PAULSON
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, May 27, 3:18 PM CDT, 1 hour 2 minutes before
STORM REPORT NATIONAL WEATHER SERVICE MINNEAPOLIS, MN 315 PM CDT MON MAY 27 1991 XCLNT WORK SELS.............HAIL (HALE) RPT....... WSO RST PUT OUT SVR WRNG FOR 1 INCH HAIL EAST OF CITY OF RST AT 308 PM.......... ELMWOOD, WI IN ERN PIERCE 1 INCH HAIL...... MSP.......................................OPERATIONS WAY TO GO, FORECASTERS..........
Special weather statement, May 27, 3:38 PM CDT, 42 minutes before
MNZ014-011-012-272145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 338 PM CDT MON MAY 27 1991 ...A LINE OF HEAVY THUNDERSTORMS IN CENTRAL MINNESOTA... AT 330 PM CDT A LINE OF THUNDERSTORMS WITH HEAVY RAIN...BRIEF GUSTY WINDS...POSSIBLE SMALL HAIL...AND LIGHTNING WAS IN CENTRAL MORRISON COUNTY. THE STORMS STRETCHED FROM UPSULA TO JUST EAST OF LITTLE FALLS TO MILLE LACS LAKE. THE THUNDERSTORMS WERE MOVING SLOWLY EAST AT 15 MPH. PERSONS IN SOUTHEASTERN MORRISON COUNTY SHOULD BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES. KRUSE NNNN
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 3:12 PM CDT | Severe Thunderstorm Warning | MPX | Dunn | 48 min |
| May 27, 3:34 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire, Pepin | 41 min |
| May 27, 4:59 PM CDT | Severe Thunderstorm Warning | MPX | Clark | 61 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991
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.