Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 11, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 14, 1991, 7:48 PM CDT for Chippewa County, Minnesota. It was in force for 57 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 14, 1991, 7:48 PM CDT (00:48 UTC)
- Expired
- May 14, 1991, 8:45 PM CDT
- In force
- 57 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Chippewa County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 14, 8:05 PM CDT | Hail 0.75 | Chippewa, MN |
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, 0.8 hours before the alert went out and 156 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
- 3057 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTC 150048 SVRSTC MNC023-150145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 748 PM CDT TUE MAY 14 1991 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MINNESOTA ...CHIPPEWA COUNTY INCLUDING THE CITY OF MONTEVIDEO. A SEVERE THUNDERSTORM WAS LOCATED 31 MILES NORTHWEST OF REDWOOD FALLS MINNESOTA. THE THUNDERSTORM WAS MOVING NORTH AT 18 MPH. 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. 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, May 14, 5:23 PM CDT, 2 hours 25 minutes before
MNZ013-142330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 523 PM CDT TUE MAY 14 1991 ...THUNDERSTORMS WITH HAIL WERE MOVING OVER WEST-CENTRAL MINNESOTA... AT 515 PM CDT STRONG THUNDERSTORMS DROPPED SMALL HAIL AT THE TOWN OF DAWSON MINNESOTA...50 MILES SOUTHWEST OF WILLMAR. THE THUDERSTORMS WERE MOVING NORTH-NORTHEAST AT 20 MPH. THE STORMS WILMOVE INTO THE TOWN OF APPLETON...45 MILES WEST OF WILLMAR AROUND 6PM CDT. VC NNNN
Special weather statement, May 14, 5:30 PM CDT, 2 hours 18 minutes before
MNZ013-142330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 523 PM CDT TUE MAY 14 1991 ...THUNDERSTORMS WITH HAIL WERE MOVING OVER WEST-CENTRAL MINNESOTA... AT 515 PM CDT STRONG THUNDERSTORMS DROPPED SMALL HAIL AT THE TOWN OF DAWSON MINNESOTA...50 MILES SOUTHWEST OF WILLMAR. THE THUDERSTORMS WERE MOVING NORTH-NORTHEAST AT 20 MPH. THE STORMS WILL MOVE INTO THE TOWN OF APPLETON...45 MILES WEST OF WILLMAR AROUND 6PM CDT. VC NNNN CORRECTED TO TIGHTEN UP LINES THAT WERE TRUNCATED.
Special weather statement, May 14, 5:37 PM CDT, 2 hours 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 535 PM CDT TUE MAY 14 1991 ...VERY STRONG THUNDERSTORMS OVER SOUTHERN MINNESOTA... VERY STRONG THUNDERSTORMS CONTINUED OVER SOUTHWEST AND SOUTH CENTRAL MINNESOTA AT 530 PM. THE STRONGEST OF THESE WERE BETWEEN NEW ULM AND JACKSON...AND JUST SOUTH OF MANKATO. OTHER STORMS WERE SOUTHWEST OF A LINE FROM ORTONVILLE TO OWATONNA. THESE STORMS MAY PRODUCE HAIL...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND EXTREMELY HEAVY RAINFALL. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING...CAMPING...OR WORKING ON FARM EQUIPMENT SHOULD BE PREPARED TO TAKE APPROPRIATE SAFETY PRECAUTIONS IF THREATENING WEATHER APPROACHES. REMEMBER THAT LIGHTNING IS A KILLER. MOVEMENT OF THESE STRONG THUNDERSTORMS WAS TO THE NORTHWEST AT 25 MILES AN HOUR. THEY WILL BE AFFECTING THE CITIES OF MANKATO AND SLEEPY EYE BY 600 PM. KRAFT
Special weather statement, May 14, 6:32 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 630 PM CDT TUE MAY 14 1991 ...VERY STRONG THUNDERSTORMS OVER SOUTHWEST MINNESOTA... A VERY STRONG THUNDERSTORM WAS OCCURRING 30 MILES SOUTHEAST OF MARSHALL NEAR DOVRAY IN MURRAY COUNTY OF SOUTHWEST MINNESOTA AT 630 PM. OTHER STRONG THUNDERSTORMS STORMS WERE LOCATED TO THE SOUTH OF A LINE FROM MARSHALL TO LE SUEUR TO ROCHESTER. THESE STORMS MAY PRODUCE HAIL...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND EXTREMELY HEAVY RAINFALL. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING...CAMPING...OR WORKING ON FARM EQUIPMENT SHOULD BE PREPARED TO TAKE APPROPRIATE SAFETY PRECAUTIONS IF THREATENING WEATHER APPROACHES., MOVEMENT OF THESE STRONG THUNDERSTORMS WAS TO THE NORTHWEST AT 15 MILES AN HOUR. THEY WILL BE AFFECTING THE CITIES OF MARSHALL AND REDWOOD FALLS BY 730 PM. KRAFT
Special weather statement, May 14, 6:35 PM CDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 630 PM CDT TUE MAY 14 1991 ...VERY STRONG THUNDERSTORMS OVER SOUTHWEST MINNESOTA... A VERY STRONG THUNDERSTORM WAS OCCURRING 30 MILES SOUTHEAST OF MARSHALL NEAR DOVRAY IN MURRAY COUNTY OF SOUTHWEST MINNESOTA AT 630 PM. OTHER STRONG THUNDERSTORMS WERE LOCATED TO THE SOUTH OF A LINE FROM MARSHALL TO LE SUEUR TO ROCHESTER. THESE STORMS MAY PRODUCE HAIL...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND EXTREMELY HEAVY RAINFALL. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING...CAMPING...OR WORKING ON FARM EQUIPMENT SHOULD BE PREPARED TO TAKE APPROPRIATE SAFETY PRECAUTIONS IF THREATENING WEATHER A-PPROACHES. MOVEMENT OF THESE STRONG THUNDERSTORMS WAS TO THE NORTHWEST AT 15 MILES AN HOUR. THEY WILL BE AFFECTING THE CITIES OF MARSHALL AND REDWOOD FALLS BY 730 PM. KRAFT
Special weather statement, May 14, 7:46 PM CDT, 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 740 PM CDT TUE MAY 14 1991 ...SEVERE THUNDERSTORM WATCH FOR PARTS OF WEST CENTRAL AND SOUTHWEST MINNESOTA UNTIL 100 AM CDT... VERY STRONG THUNDERSTORMS WERE OCCURRING SOUTHWEST MINNESOTA AT 730 PM. THEY WERE LOCATED 10 MILES WEST OF REDWOOD FALLS...AND IN A NARROW BAND FROM CURRIE TO WINNEBAGO. OTHER THUNDERSTORMS AND SHOWERS WERE SOUTH OF A LINE FROM ALEXANDRIA TO ROCHESTER. THESE STORMS MAY PRODUCE HAIL...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND EXTREMELY HEAVY RAINFALL. PERSONS ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING...CAMPING...OR WORKING ON FARM EQUIPMENT SHOULD BE PREPARED TO TAKE APPROPRIATE SAFETY PRECAUTIONS IF THREATENING WEATHER APPROACHES. MOVEMENT OF THESE STRONG THUNDERSTORMS WAS TO THE NORTH AT 15 MILES AN HOUR. THEY WILL BE AFFECTING THE CITIES OF MARSHALL AND WILLMAR BY 800 PM. KRAFT
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.