Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 125, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 25, 1991, 6:17 AM CDT for Kandiyohi County, Meeker County, Minnesota. It was in force for 43 min.
The area
The counties it named.
The facts
- Issued
- Aug 25, 1991, 6:17 AM CDT (11:17 UTC)
- Expired
- Aug 25, 1991, 7:00 AM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Kandiyohi County, MN, Meeker County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 11.3 hours before the alert went out and 97 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
- 2335 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1192 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 12.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTC 251122 COR SVRSTC MNC067-093-251200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING ...CORRECT TIME IN TEXT... NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 617 AM CDT SUN AUG 25 1991 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MINNESOTA ...SOUTHEASTERN KANDIYOHI COUNTY...WESTERN MEEKER COUNTY AT 6 10 AM CDT RADAR INDICATED A THUNDERSTORMW WITH LARGE HAIL... VERY FREQUENT LIGHTNING AND DOWNPOURS OF RAIN FROM NEAR NEW LONDON ...WHICH IS ABOUT 15 MILES NORTHEAST OF WILLMAR MINNESOTA...TO BLOMKEST WHICH IS 12 MILES SOUTH OF WILLMAR. THIS THUNDERSTORM WAS MOVING EAST AT 15 MPH. CITIES IN THE PATH OF THIS THUNDERSTORM INCLUDED ATWATER...GROVE CITY...LAKE LILLIAN AND LITCHFIELD. CAMPERS AND THOSE IN RECREATIONAL VEHICLES SHOULD MOVE TO SAFE SHELTER UNTIL THIS STORM PASSES THEIR AREA. TENTS AND CAMPERS ARE NOT SAFE PLACES TO BE DURING THNDERSTORMS. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE LTO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. NNNN
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, 2:40 AM CDT, 3 hours 37 minutes before
MNZ014-013-012-250830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 233 AM CDT SUN AUG 25 1991 AT 220 AM THIS SUNDAY MORNING A LARGE AREA OF THUNDERSTORMS SOME CONTAINING VERY STRONG WINDS...HEAVY RAIN AND LIGHTING WAS LOCATED FROM SOUTHWEST OF DULUTH...SOUTHWEST TO THE MINNESOTA-SOUTH DAKOTA BORDER. THESE THUNDERSTORMS WERE MOVING TO THE EAST SOUTHEAST AT 20 TO 30 MPH. THE HEAVIER OF THESE THUNDERSTORMS APPEAR TO BE LOCATED NORTHWEST OF ALEXANDRIA MINNESOTA...SOUTHWEST TO THE SOUTH DAKOTA BORDER NEAR WHEATON MINNESOTA. ANOTHER AREA OF CONCERN IS JUST NORTHWEST OF MILLE LACS LAKE...THIS AREA MAY RECEIVE SOME FAIRLY STRONG AND GUSTY WINDS BY 230 TO 300 AM. PERSONS IN SOUTHWEST TODD...SOUTHWEST POPE...AND NORTHCENTRAL SWIFT COUNTIES OF WEST CENTRAL MINNESOTA AS WELL AS BOATERS AND FISHERPERSONS ON MILLE LACS LAKE SHOULD KEEP A SHARP EYE ON THE WEATHER FOR THE NEXT SEVERAL HOURS. NNNN
Special weather statement, Aug 25, 2:51 AM CDT, 3 hours 26 minutes before
MNZ013-250900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 251 AM CDT SUN AUG 25 1991 AT 2:50 AM THIS SUNDAY MORNING...HEAVY THUNDERSTORMS POSSIBLY CONTAINING STRONG WINDS...VERY HEAVY RAIN AND LIGHTING HAVE MOVED INTO WESTERN POPE COUNTY NEAR THE CITY OF CYRUS...25 MILES SOUTHWEST OF ALEXANDRIA MINNESOTA. THESE THUNDERSTORMS WERE MOVING TO THE EAST SOUTHEAST AT 20 TO 30 MPH AND WILL PASS THROUGH POPE COUNTY AND INTO NORTHCENTRAL AND NORTHEAST SWIFT COUNTY BY 3:30 AM THIS SUNDAY MORNING. NNNN
Special weather statement, Aug 25, 4:15 AM CDT, 2 hours 2 minutes before
MNZ014-013-251015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 415 AM CDT SUN AUG 25 1991 AT 4:15 AM CDT THIS SUNDAY MORNING THUNDERSTORMS WITH SMALL HAIL...HEAVY RAIN AND DANGEROUS LIGHTING WERE MOVING FROM WEST TO EAST ACROSS CENTRAL MINNESOTA. THE HEAVIEST OF THESE THUNDERSTORMS WERE LOCATED IN SOUTHEAST POPE COUNTY ENTERING EXTREME SOUTHWEST STEARNS COUNTY AND IN EAST CENTRAL SWIFT COUNTY. THESE THUNDERSTORMS HAVE WEAKENED SLIGHTLY BUT COULD STILL BE A THREAT. THESE HEAVY THUNDERSTORMS WERE MOVING TO THE EAST SOUTHEAST AT 15 TO 25 MPH. NNNN
Special weather statement, Aug 25, 4:42 AM CDT, 1 hour 35 minutes 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, 57 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, 37 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.
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, 9:42 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Sibley | 33 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.