Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 37, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 28, 1991, 10:08 PM CDT for Polk County, Wisconsin. It was in force for 52 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 28, 1991, 10:08 PM CDT (03:08 UTC)
- Expired
- May 28, 1991, 11:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Polk County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 28, 10:10 PM CDT | Hail 0.75 | Polk, WI |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 3.1 hours before the alert went out and 113 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
- 674 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 290307 SVRMSP WIC095-290400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1008 PM CDT TUE MAY 28 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL WISCONSIN ...NORTHERN POLK COUNTY AT 1005 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED ALONG THE ST CROIX RIVER NEAR TAYLORS FALLS. THIS THUNDERSTORM WAS 25 MILES SOUTH OF GRANTSBURG WISCONSIN. THIS SEVERE THUNDERSTORM HAS A HISTORY OF PRODUCING DAMAGING HAIL AND WAMOVING EAST-NORTHEAST AT 25 MILES AN HOUR. SOME CITIES IN THE PATH OF THIS STORM INCLUDE BALSAM LAKE AND LUCK. 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.
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
Special weather statement, May 28, 6:22 PM CDT, 3 hours 46 minutes before
MNZ013-290030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 622 PM CDT TUE MAY 28 1991 ...TORNADO WATCH UNTIL 11 PM... AT 620 PM CDT THUNDERSTORMS WERE IN EAST CENTRAL SOUTH DAKOTA EAST OF HURON. THE STORMS WERE MOVING RAPIDLY TO THE EAST NORTHEAST AT 50 MPH. PEOPLE IN WEST CENTRAL MINNESOTA IN THE COUNTIES OF LAC QUI PARLE AND YELLOW MEDICINE SHOULD STAY ALERT TO THE POSSIBILTY OF SEVERE WEATHER ENTERING THE COUNTIES BY 7 PM CDT. SOME CITIES IN THE PATH OF THESE STORMS ARE CANBY...MARIETTA...MADISON ...DAWSON...AND ST LEO. KRUSE NNNN
Special weather statement, May 28, 8:14 PM CDT, 1 hour 54 minutes before
MNZ014-290215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 814 PM CDT TUE MAY 28 1991 ...A TORNADO WATCH CONTINUES IN EFFECT UNTIL 11 PM... AT 815 PM THUNDERSTORMS WITH HEAVY RAIN...POSSIBLE SMALL HAIL...AND FREQUENT LIGHTNING WERE LOCATED 20 MILES SOUTHWEST OF WILLMAR NEAR CLARA CITY. ALSO OTHER THUNDERSTORMS EXTENDED FROM LITCHFIELD IN MEEKER COUNTY TO BECKER IN SHERBURNE COUNTY. THESE STORMS WERE MOVING NORTHGEAST AT 40 MPH AND WILL BE IN THE CITIES OF ANNANDALE...MONTICELLO..AND BIG LAKE BY 845 PM. KRUSE NNNN
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 11:35 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Saint Croix | 55 min |
| May 28, 11:35 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 55 min |
| May 29, 12:06 AM CDT | Severe Thunderstorm Warning | MPX | Dunn | 54 min |
| May 29, 12:31 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 44 min |
| May 29, 12:37 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire, Rusk | 68 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.