Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 126, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 25, 1991, 9:42 AM CDT for Carver County, Sibley County, Minnesota. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Aug 25, 1991, 9:42 AM CDT (14:42 UTC)
- Expired
- Aug 25, 1991, 10:15 AM CDT
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Carver County, MN, Sibley County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 2.7 hours before the alert went out and 37 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
- 181 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 1005 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 332 m²/s²
- 0-3 km storm-relative helicity
- 278 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 251451 COR SVRMSP MNC143-019-251530- BULLETIN - IMMEDIATE BROADCAST REQUESTED...RESENT... SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 942 AM CDT SUN AUG 25 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MINNESOTA ...EASTERN SIBLEY COUNTY IN EAST CENTRAL MINNESOTA ...SOUTHERN CARVER COUNTY ...AT 935 AM CDT THIS SUNDAY MORNING..NWS RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHEAST MCLEAD COUNTY NEAR GLENCOE MINNESOTA.. ABOUT 30 MILES NORTH OF MANKATO. THE 20 MPH SOUTHEAST MOVEMENT OF THIS STORM WOULD LIKELY CARRY IT ACROSS HAMBURG AND GREEN ISLE BY 1010 AM CDT THIS SUNDAY MORNING. WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOS WITH LITTLE OR NO WARNING. 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. TOGSTAD
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, Aug 25, 4:42 AM CDT, 5 hours before
MNZ010-011-013-014-WIZ003-006-251045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 440 AM CDT SUN AUG 25 1991 ...STRONG THUNDERSTORMS IN WEST CENTRAL AND CENTRAL MINNESOTA... STRONG THUNDERSTORMS CONTINUED OVER CENTRAL AND WEST CENTRAL MINNESOTA AT 430 AM. MARBLE SIZE HAIL WAS REPORTED AT BELGRADE IN STEARNS COUNTY AT 417 AM. THE MOST POWERFUL STORMS WERE LOCATED FROM ABOUT 20 MILES EAST OF ALEXANDRIA...SOUTH TO NEAR BELGRADE... TO NEAR KERKHOVEN. HAIL...STRONG GUSTY WINDS...FREQUENT LIGHTNING ...AND VERY HEAVY RAIN ARE POSSIBLE WITH THESE STORMS. MOVEMENT WAS TO THE EAST AT 15 TO 20 MILES AN HOUR TOWARDS PAYNESVILLE AND NEW LONDON. SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES YOU. THUNDERSTORMS AND LIGHT RAINSHOWERS CONTINUED OVER A LARGE AREA FROM SOUTHWEST THROUGH CENTRAL AND NORTHEAST MINNESOTA INTO EXTREME NORTHWEST WISCONSIN. IT WAS NORTH OF A LINE FROM NEAR MARSHALL MINNESOTA TO BU FFALO TO PINE CITY TO HAYWARD WISCONSIN. MOVEMENT WAS TO THE EAST AT 15 MILES AN HOUR.
Special weather statement, Aug 25, 5:20 AM CDT, 4 hours 22 minutes before
MNZ014-013-011-012-251115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 520 AM CDT SUN AUG 25 1991 ...THUNDERSTORMS RUMBLING ACROSS CENTRAL MINNESOTA... AT 5 20 AM CDT THUNDERSTORMS CONTINUED ACROSS CENTRAL MINNESOTA. THE STRONGEST THUNDERSTORMS WERE LOCATED FROM NEAR GREY EAGLE...30 MILES NORTHWEST OF ST. CLOUD...TO NEW LONDON...40 MILES SOUTHWEST OF ST. CLOUD. HEAVY RAIN...SMALL HAIL...AND FREQUENT LIGHTNING STRIKES WERE OCCURRING WITH THESE STORMS. ELSEWHERE SHOWERS AND THUNDERSTORMS CONTINUED FROM SOUTHWEST OF ST. CLOUD...THROUGH CENTRAL MINNESOTA...TO THE BRAINERD AREA...AND THEN INTO NORTHEAST MINNESOTA. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST 6AT ABOUT 15 MPH. WDV NNNN
Special weather statement, Aug 25, 5:40 AM CDT, 4 hours 2 minutes before
MNZ010-011-012-013-014-015-WIZ003-006-251145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 540 AM CDT SUN AUG 25 1991 ...STRONG THUNDERSTORMS OVER CENTRAL MINNESOTA... STRONG THUNDERSTORMS WERE OCCURRING OVER CENTRAL MINNESOTA AT 530 AM. THEY WERE LOCATED NEAR FREEPORT IN NORTHERN STEARNS AND NEAR REGAL IN NORTHEAST KANDIYOHI COUNTIES OF CENTRAL MINNESOTA. HAIL...STRONG GUSY WINDS...FREQUENT LIGHTNING...AND VERY HEAVY RAINS ARE POSSIBLE WITH THESE STORMS. MOVEMENT WAS TO THE EAST AT 15 TO 20 MILES AN HOUR TOWARDS THE CITIES OF PAYNESVILLE AND ALBANY. SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES YOU. THUNDERSTORMS WITH HEAVY RAINS WERE OCCURRING IN A 50 MILE WIDE AREA FROM NEAR MARSHALL IN SOUTHWEST MINNESOTA TO HAYWARD IN NORTHWEST WISCONSIN. THE LEADING EDGE OF THE RAINFALL WAS FROM REDWOOD FALLS TO ANOKA...JUST NORTH OF MINNEAPOLIS...TO SHELL LAKE WISCONSIN. MOVEMENT WAS TO THE EAST AT 153 MILES AN HOUR.
Special weather statement, Aug 25, 7:00 AM CDT, 2 hours 42 minutes before
MNZ012-014>018-WIZ003-006-251300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 700 AM CDT SUN AUG 25 1991 ...FREQUENT LIGHTNING WITH SOME STORMS THIS MORNING... A LINE OF THUNDERSTORMS EXTENDED FROM JUST SOUTHEAST OF REDWOOD FALLS... TO JUST NORTHWEST OF THE TWIN CITIES...AND ON INTO NORTHWEST WISCONSIN. THESE STORMS HAVE A HISTORY OF VERY FREQUENT LIGHTNING STRIKES. POWER OUTAGES HAVE BEEN REPORTED IN TOWNS AROUND WESTERN AND CENTRAL MINNESOTA. IF YOU ARE NEAR ANY OF THESE THUNDERSTORMS...MAKE SURE YOU GET INSIDE A BUILDING. GET AWAY FROM WINDOWS AND STAY OFF THE TELEPHONE. SEEK SHELTER IN AN AUTOMOBILE IF NECESSARY. DON'T HOLD METAL UMBRELLAS. GOLFERS SHOULD GET BACK TO THE CLUBHOUSE. REMEMBER THAT IT DOES NOT HAVE TO BE RAINING TO GET A LIGHTNING STRIKE. ANYBODY WITHIN SEVERAL MILES OF THESE STORMS SHOULD GET TO SHELTER.
Special weather statement, Aug 25, 7:43 AM CDT, 1 hour 59 minutes before
MNZ012-013-014-015-016-WIZ003-006-251345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 740 AM CDT SUN AUG 25 1991 ...THUNDERSTORMS APPROACH STATE FAIR... THUNDERSTORMS HAD ENTERED THE GREATER TWIN CITIES METRO AREA AT 730 AM. HEAVY RAIN WAS FALLING FROM ANOKA...NORTH OF MINNEAPOLIS... TO LAKE MINNETONKA IN WESTERN HENNEPIN COUNTY...TO LE SUEUR. RAIN WAS ALREADY FALLING AT THE STATE FAIR AT 730 AM. THUNDERSTORMS SHOULD MOVE OVER THE FAIRGROUNDS IN FALCON HEIGHTS BY ABOUT 800 AM. FAIRGOERS SHOULD BEWARE OF LIGHTNING AS IT CAN BE DEADLY...AND SEEK SAFE SHELTER OF THUNDERSTORMS APPROACH. THUNDERSTORMS WITH VERY HEAVY RAIN WERE OCCURRING NEAR FOLEY IN CENTRAL MINNESOTA AND FROM HUTCHINSON TO REDWOOD FALLS OVER CENTRAL AND SOUTHWEST MINNESOTA. FREQUENT LIGHTNING AND STRONG GUSTY WINDS AS WELL AS HAIL MAY BE EXPECTED WITH THESE STORMS. MOVEMENT WAS TO THE EAST AT 25 MILES AN HOUR TOWARDS GLENCOE AND COKA/TO.
Special weather statement, Aug 25, 9:02 AM CDT, 40 minutes before
MNZ012-013-014-015-016-WIZ003-006-251445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 845 AM CDT SUN AUG 25 1991 ...STRONG THUNDERSTORMS MOVING THROUGH THE TWIN CITIES... AT 835 AM CDT...STRONG THUNDERSTORMS WITH HEAVY TO VERY HEAVY RAINS EXTENDED ACROSS PORTIONS OF CENTRAL AND EAST CENTRAL MINNESOTA. THE STRONGEST STORMS WERE LOCATED NEAR LE CENTER AND GAYLORD AND ACROSS WESTERN PORTIONS OF THE TWIN CITIES FROM SHAKOPEE THROUGH WACONIA TO NORTHWEST OF ANOKA. VERY HEAVY RAINS ALONG WITH FREQUENT DEADLY LIGTNING STRIKES CAN BE EXPECTED WITH THE STORMS AS THEY MOVE SOUTHEAST AT 25 TO 30 MILES AN HOUR. PERSONS PLANNING ON ATTENDING OR ALREADY AT THE STATE F}AIR SHOULD BE READY FOR THUNDERSTORM ACTIVITY THROUGH 10 AM THIS MORNING. BEWARE OF THE DANGEROUS LIGHTNING AND SEEK SAFE SHELTER FROM THE STORMS.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 3:18 AM CDT | Severe Thunderstorm Warning | MPX | Pope | 42 min |
| Aug 25, 6:17 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker | 43 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.