Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 92, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 1991, 9:45 PM CDT for Chippewa County, Kandiyohi County, Minnesota. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1991, 9:45 PM CDT (02:45 UTC)
- Expired
- Jun 30, 1991, 10:21 PM CDT
- In force
- 36 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Chippewa County, MN, Kandiyohi County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 2.8 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
- 95 J/kg
- Mixed-layer CIN
- -354 J/kg
- Mixed-layer LCL
- 659 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 390 m²/s²
- 0-3 km storm-relative helicity
- 500 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 10.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTC 010245 SVRSTC MNC067-023-010330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 945 PM CDT SUN JUN 30 1991 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MINNESOTA ...WESTERN KANDIYOHI COUNTY IN WEST CENTRAL MINNESOTA ...EASTERN CHIPPEWA COUNTY AT 9 40 PM CDT WINDS CAUSED EXTENSIVE TREE DAMAGE IN THE CITY MONTEVIDEO MINNESOTA. THIS THUNDERSTORM WAS LOCATED 25 MILES WEST SOUTHWEST OF WILLMAR MINNESOTA AND WAS MOVING EAST AT 30 MPH. THE THUNDERSTORM WILL MOVE THROUGH THE TOWNS OF RAYMOND...CLARA CITY ...WILLMAR...AND PENNOCK BETWEEN 9 45 AND 10 30 PM CDT. 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 TO NA 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, Jun 30, 5:46 PM CDT, 3 hours 59 minutes before
MNZ014-016-302315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 545 PM CDT SUN JUN 30 1991 AT 540 PM...A STRONG THUNDERSTORM WAS 25 MILES NORTHWEST OF DOWNTOWN MINNEAPOLIS...FROM ROCKFORD TO ELK RIVER. SMALL HAIL...GUSTY WINDS AND FREQUENT LIGHTNING ARE ALL POSSIBLE WITH THIS STORM. LITTLE MOVEMENT WAS OBSERVED...SINCE THE STORM WAS IN THE FORMATIVE STAGES. THE STORM WAS DEVELOPING RAPIDLY. PEOPLE AROUND ROCKFORD... BUFFALO...ALBERTVILLE...AND ELK RIVER SHOULD BE READY TO GET TO SHELTER QUICKLY IF THE STORM SHOULD SUDDENLY STRENGTHEN. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. TDK
Special weather statement, Jun 30, 6:05 PM CDT, 3 hours 40 minutes before
MNZ012-010000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 605 PM CDT SUN JUN 30 1991 ...THUNDERSTORM WAS MOVING OVER CENTRAL MINNESOTA SOUTH OF LAKE MILLE LACS... AT 605 PM CDT RADAR LOCATED A STRONG THUNDERSTORM WITH HEAVY RAIN AND SMALL HAIL 6 MILES NORTH OF MILACA...28 MILES NORTHEAST OF ST CLOUD. THE STORM WAS MOVING NORTHEAST AT 25 MPH AND WILL PASS OVER THE RUM RIVER STATE FOREST BY 615 PM. PEOPLE OUTDOORS AND CAMPERS SHOULD MOVE TO YOUR AUTOMOBILES FOR SAFETY...LIGHTNING IS DEADLY AND YOU WILL BE SAFE IN YOUR CAR. NNNN
Special weather statement, Jun 30, 7:24 PM CDT, 2 hours 21 minutes before
MNZ013-010130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 724 PM CDT SUN JUN 30 1991 ...TORNADO WATCH FOR WEST CENTRAL MINNESOTA UNTIL 9 PM CDT AND A SEVERE THUNDERSTORM WATCH FOR CENTRAL MINNESOTA UNTIL MIDNIGHT... AT 7 25 PM CDT A THUNDERSTORM WITH POTENTIAL SEVERE WEATHER EXNTENDED FROM NEAR ORTONVILLE MINNESOTA SOUTH TO JUST SOUTHWEST OF CANBY MINNESOTA. THE STRONGEST OF THESE THUNDERSTORMS WAS 85 MILES SOUTHWEST OF WILLMAR MINNESOTA AND LOCATED JUST ACROSS THE MINNESOTA-SOUTH DAKOTA BORDER. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH. BETWEEN 7 30 AND 8 PM CDT THESE STORMS WILL CONTINUE TO MOVE INTO WEST CENTRAL MINNESOTA. SOME TOWNS IN THE PATH OF THESE THUNDERSTORMS ARE ORTONVILLE...CANBY...MARIETTA...DAWSON...MADISON AND ST. LE0. PEOPLE IN THESES TOWNS AND THE RURAL WESTERN SECTIONS OF BIG STONE... LAC QUI PARLE AND YELLOW MEDICINE COUNTIES SHOULD BE ALERT FOR THREATENING WEATHER.e BE READY TO GO TO INSIDE SHELTER IMMEDIATELY IF THESE THUNDERSTORMS APPROACH YOUR AREA. THESE THUNDERSTORMS WILL HAVE VERY HEAVY RAIN...POSSIBLE DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING. NNNN
Local storm report, Jun 30, 9:17 PM CDT, 28 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
920 PM CDT SUN JUN 30 1991
STORM DATA FOR JUNE 30 1991
TIME..CDT COUNTY...LOCATION AND STATE CHARACTER OF STORM
643 PM HE,NNEPIN CO...CITY OF 6" INCH MAPLES BOWED OVER.
CHAMPLIN POWER OUT IN CHAMPLIN.
650 PM ANOKA CO..CITY OF ANOKA TREES DOWN..ESTIMATED 8" IN
DIAMETER.Special weather statement, Jun 30, 9:26 PM CDT, 19 minutes before
MNZ014-013-010330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 926 PM CDT SUN JUN 30 1991 ...SEVERE THUNDERSTORM WATCH UNTIL 2 AM CDT FOR CENTRAL MINNESOTA... AT 9 20 PM CDT THUNDERSTORMS WERE LOCATED FROM ELROSA...IN STEARNS COUNTY...SOUTH THROUGH PAYNESVILLE...AND THEN TO BLOMKEST...KANDIYOHI COUNTY. ALSO A STRONG THUNDERSTORM WAS LOCATED AT MONTEVIDEO IN CHIPPEWA COUNTY. STRONG WINDS OF ABOUT 45 MPH WERE REPORTED WITH THESE STORMS. HEAVY DOWNPOURS OF RAIN HAVE BEEN COMMONLY REPORTED WITH MOST OF THESE THUNDERSTORMS. THESE THUNDERSTORMS ARE MOVING EAST AT 30 MPH. THE STORMS WILL MOVE INTO THE TOWNS OF LITCHFIELD...EDEN VALLEY IN MEEKER COUNTY...AND THE RICHMOND CHAIN OF LAKES AREA OF STEARNS COUNTY BETWEEN 9 30 AND 10 PM CDT. PEOPLE THROUGHOUT CENTRAL MINNESOTA SHOULD BE READY FOR THUNDERSTORMS FOR THE NEXT SEVERAL HOURS. THESE STORMS WILL CERTAINLY HAVE LIGHTNING WITH THEM...AND LIGHTNING 7IS A KILLER. HEAVY DOWNPOURS CAN REDUCE DRIVING VISIBILITY TO ZERO AT TIMES. NNNN
Local storm report, Jun 30, 9:28 PM CDT, 17 minutes before
STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
925 PM CDT SUN JUN 30 1991
STORM DATA FOR JUNE 30 1991
TIME..CDT COUNTY...LOCATION CHARACTER OF STORM
536 PM WRIGHT..2 MILES NORTH FUNNEL CLOUD
OF DELANO
643 PM HENNEPIN CO...CITY OF 6" INCH MAPLES BOWED OVER.
CHAMPLIN POWER OUT IN CHAMPLIN.
650 PM ANOKA CO..CITY OF ANOKA TREES DOWN..ESTIMATED 8" IN
DIAMETER.
OTHER NUMEROUS REPORTS OF WALL CLOUDS BETWEEN 540 PM AND 730 PM ACROSS
NORTHEASTERN WRIGHT...NORTHERN HENNEPIN...AND ANOKA COUNTIES. NONE OF
TH;ESE WERE EVER REPORTED AS FUNNEL CLOUDS HOWEVER.The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 7:44 PM CDT | Tornado Warning | MPX | Lac qui Parle | 31 min |
| Jun 30, 7:59 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 46 min |
| Jun 30, 11:08 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Wright | 37 min |
| Jul 1, 12:05 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Scott | 40 min |
| Jul 1, 12:05 AM CDT | Severe Thunderstorm Warning | MPX | Ramsey | 40 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.