Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 62, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 31, 1991, 9:11 AM CDT for Dunn County, Wisconsin. It was in force for 49 min.
The area
The counties it named.
The facts
- Issued
- May 31, 1991, 9:11 AM CDT (14:11 UTC)
- Expired
- May 31, 1991, 10:00 AM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Dunn County, WI
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 2.2 hours before the alert went out and 135 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
- NaN m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 311409 SVRMSP WIC033-311500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 911 AM CDT FRI MAY 31 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION IN WEST CENTRAL WISCONSIN ...DUNN COUNTY AT 905 AM...A SEVERE THUNDERSTORM WAS INDICATED BY RADAR ABOUT 25 MILES WEST OF EAU CLAIRE NEAR ELMWOOD IN EXTREME EASTERN PIERCE COUNTY. THE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MPH TOWARDS THE TOWNS OF WESTON AND MENOMONIE. RADAR SHOWS THAT THIS STORM IS CAPABLE OF PRODUCING LARGE HAIL. 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 31, 6:37 AM CDT, 2 hours 34 minutes before
MNZ014-015-016-018-311245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 637 AM CDT FRI MAY 31 1991 ...STRONG THUNDERSTORMS WITH VERY HEAVY RAINS ROLL INTO CENTRAL MINNESOTA... WEATHER RADAR AT 625 AM SHOWED A CLUSTER OF VERY STRONG THUNDERSTORMS ABOUT 50 MILES WEST OF THE TWIN CITIES IN THE COKATO...HUTCHINSON.. AND GLENCOE AREA. AT AROUND 615 AM HAIL...SOME OF IT NEAR DIME SIZE..WAS REPORTED AT CEDAR MILLS IN SOUTHERN MEEKER COUNTY. THIS IS ABOUT 20 MILES SOUTH OF LITCHFIELD. PERSONS IN WRIGHT AND MCLEOD AND WESTERN CARVER COUNTIES SHOUDL BE ALERT TO THE POSSIBILITY OF VERY HEAVY DOWNPOURS AND SOME HAIL FROM THESE THUNDERSTORMS BETWEEN 625 AND 730AM. ANOTHER CLUSTER OF STRONG THUNDERSTORMS WAS LOCATED SOUTHWEST OF THE TWIN CITIES IN THE ST PETER...NICOLETT...WATERVILLE AREA. THESE THUNDERSTORNS WILL BE AFFECTING THE COUTIES OF NICOLLETT..LE SEUER..AND SOUTEHRN SCOTT BETWEEN 625 AND 730 AM. ALL TSHUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH. PAULSON
Special weather statement, May 31, 6:43 AM CDT, 2 hours 28 minutes before
MNZ014-311245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 643 AM CDT FRI MAY 31 1991 ...THUNDERSTORMS WITH HEAVY RAIN IN CENTRAL MINNESOTA... AT 640 AM THUNDERSTORMS SOME^ WITH VERY HEAVY RAIN...AND POSSIBLE SMALL HAIL WERE NEAR ST CLOUD AND THEN NORTHWEST TO ALEXANDRIA. THE STRONGEST STORM WAS NEAR ALBANY...15 MILES NORTHWEST OF ST CLOUD. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. NNNN
Special weather statement, May 31, 7:54 AM CDT, 1 hour 17 minutes before
MNZ014-015-016-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 753 AM CDT FRI MAY 31 1991 ...STRONG THUNDERSTORMS SWEEPING ACROSS THE TWIN CITY METRO AREA... AT 750 AM...RADAR INDICATED A LINE OF THUNDERSTORMS ACROSS THE CENTRAL SECTIONS OF THE METROPOLITAN AREA. SOME OF THESE STORMS HAD PRODUCED PEA TO MARBLE SIZE HAIL...ALONG WITH WIND GUSTS OF 40 MPH. ALSO TORRENTIAL RAINS HAVE BEEN CAUSING NEAR ZERO VISIBILITY. AT 750 AM THE LINE RAN FROM NEAR ROGERS IN NORTHERN HENNEPIN COUNTY THEN THROUGH DOWNTOWN MINNEAPOLIS TO JUST SOUTH OF THE MINNESOTA RIVER. THE STORMS WILL CONTINUE TO MOVE NORTHEAST AT 25 TO 30 MPH ACROSS EASTERN HENNEPIN..ANOKA..RAMSEY..WASHINGTON ...AND NORTHERN DAKOTA COUNTIES. THE STORMS WILL MOVE ACROSS THE EASTERN TWIN CITIES AREA BETWEEN 745AM AND 9AM. SOME STREET FLOODING IS ALSO POSSIBLE FROM SOME OF THE STRONGER THUNDERSTORMS. MOTORISTS SHOULD BE ALERT TO THE POSSIBLITY OF WATER STANDING OR FLOWING ACROSS ROADWAYS. WINDS OF 40 TO 50 MPH AND HAIL ARE STILL POSSIBLE FROM THESE THUNDERSTORMS. FINALLY...STORMS SOMETIMES REINTENSIFY SUDDENLY...SO LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. PAULSON
Local storm report, May 31, 8:56 AM CDT, 15 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
855 AM CDT FRI MAY 31 1991
610 AM CDT...3/4 INCH HAIL IN CEDAR MILLS...45 SW STC.
REPORTED BY MEEKER CNTY SHERIFF.
KRUSESpecial weather statement, May 31, 9:01 AM CDT, 10 minutes before
MNZ016-WIZ003-006-311500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 903 AM CDT FRI MAY 31 1991 AT 855 AM CDT...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS ABOUT 40 MILES NORTHEAST OF THE TWIN CITIES IN CHISAGO COUNTY TO SOUTHWEST POLK COUNTY WISCONSIN AND THEN EXTENDING SOUTH THROUGH ST CROIX AND PIERCE COUNTIES IN WISCONSIN. THE MOST INTENSE STORMS WERE SOUTHEAST OF THE TWIN CITIES IN PIERCE COUNTY WISCONSIN. A SEVERsE THUNDERSTORM WARNING IS IN EFFECT FOR PIERCE COUNTY UNTIL 9 15 AM. RADAR INDICATED THAT THIS THUNDERSTORM COULD PRODUCE LARGE HAIL. THIS STORM WAS MOVING NORTHEAST AT 40 MPH TOWARDS ELMWOOD AND WILL BE MOVING INTO DUNN COUNTY.
Special weather statement, May 31, 9:03 AM CDT, 8 minutes before
MNZ016-WIZ003-006-311500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 903 AM CDT FRI MAY 31 1991 AT 855 AM CDT...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS ABOUT 40 MILES NORTHEAST OF THE TWIN CITIES IN CHISAGO COUNTY TO SOUTHWEST POLK COUNTY WISCONSIN AND THEN EXTENDING SOUTH THROUGH ST CROIX AND PIERCE COUNTIES IN WISCONSIN. THE MOST INTENSE STORMS WERE SOUTHEAST OF THE TWIN CITIES IN PIERCE COUNTY WISCONSIN. A SEVER|E THUNDERSTORM WARNING IS IN EFFECT FOR PIERCE COUNTY UNTIL 9 15 AM. RADAR INDICATED THAT THIS THUNDERSTORM COULD PRODUCE LARGE HAIL. THIS STORM WAS MOVING NORTHEAST AT 40 MPH TOWARDS ELMWOOD AND WILL BE MOVING INTO DUNN COUNTY.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 8:42 AM CDT | Severe Thunderstorm Warning | MPX | Pierce | 33 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.