Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 81, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 1991, 9:10 PM CDT for Brown County, Nicollet County, Minnesota. It was in force for 50 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
- Jun 19, 1991, 9:10 PM CDT (02:10 UTC)
- Expired
- Jun 19, 1991, 10:00 PM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Brown County, MN, Nicollet County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 9:35 PM CDT | Hail 1.75 | Brown, 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, 2.2 hours before the alert went out and 93 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
- 1629 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 234 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 KRST 200213 SVRRST MNC015-103-200300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROCHESTER MN 910 PM CDT WED JUN 19 1991 THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL MINNESOTA ...NORTHERN BROWN COUNTY...WESTERN NICOLLET COUNTY AT 905 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF EVAN WHICH IS 44 MILES NORTHWEST OF MANKATO IN SOUTH CENTRAL MINNESOTA. THIS STORM WAS MOVING EAST AT 10 MPH. SOME TOWNS INCLUDED IN THE WARNING AND IN THE PATH OF THE STORM ARE NEW ULM AND ST. GEORGE. IF YOUR ARE IN THE PATH OF THE STORM...GO TO A SAFE PLACE IMMEDIATELY. THE SAFEST PLACE IS THE BASEMENT OF A REINFORCED BUILDING. 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. SCS/JEB
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 19, 6:16 PM CDT, 2 hours 54 minutes before
MNZ014-013-200015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 616 PM CDT WED JUN 19 1991 ...TORNADO WATCH IN EFFECT FOR WEST CENTRAL MINNESOTA UNTIL 10 PM... AT 610 PM CDT SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER WEST CENTRAL MINNESOTA. NO SEVERE WEATHER HAS BEEN REPORTED. THERE HAS BEEN SEVERE WEATHER IN NORTHEAST SOUTH DAKOTA AND THE STORMS WHICH PRODUCED IT WILL BE PUSHING NORTHEAST INTO MINNESOTA THROUGH THE EVENING HOURS. RADAR INDICATES THAT THE THUNDERSTORMS HAVE DIMINISHED IN STRENGTH AS THEY PUSH EAST. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 TO 30 MPH. THE STORMS WILL BE MOVING THROUGH...ALEXANDRIA...GLENWOOD...BENSON AND WILLMAR BY 630 PM CDT. NNNN
Special weather statement, Jun 19, 7:48 PM CDT, 1 hour 22 minutes before
MNZ014-013-011-012-200145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 748 PM CDT WED JUN 19 1991 ...TORNADO WATCH IN EFFECT FOR WEST CENTRAL MINNESOTA UNTIL 10 PM... AT 7450 PM CDT AN AREA OF RAIN WITH A FEW SCATTERED THUNDERSHOWERS COVERED WEST CENTRAL MINNESOTA. THE AREA OF RAIN WAS LOCATED FROM LAKE MILLE LACS THROUGH ST CLOUD...THEN EXTENDING WEST TO ALEXANDRIA AND SOUTH TO MARSHALL MINNESOTA. THE ONLY STORM WHICH PRODUCED ANY SEVERE WEATHER WAS NEAR GREEN VALLEY MINNESOTA...5 MILES NORTH OF MARSHALL. LARGE HAIL WAS REPORTED NEAR GREEN VALLEY AND IT COVERED THE GROUND. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH. THE RAIN AREA WAS DEVELOPING NORTHEAST& AT 40 MPH. PLEASE STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR COMMERCIAL RADIO FOR FURTHER STATMENTS...FORECASTS OR POSSIBLE WEATHER WARNINGS. NNNN
Special weather statement, Jun 19, 8:09 PM CDT, 1 hour 1 minute before
MNZ006-010-013-017-200300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN 810 PM CDT WED JUN 19 1991 ...PART OF THE TORNADO WATCH HAS BEEN CANCELLED FOR WESTERN MINNESOTA... THE TORNADO WATCH HAS BEEN CANCELLED FOR THOSE AREAS NORTH OF A LINE FROM BROWNS VALLEY TO ALEXANDRIA. THE WATCH IS STILL IN EFFECT SOUTH OF THIS LINE UNTIL 10 PM. THOSE COUNTIES DROPPED FROM THE WATCH INCLUDE... CLAY..BECKER..WILKIN..OTTERTAILQ..TRAVERSE..GRANT..DOUGLAS ONCE AGAIN...THE TORNADO WATCH IS STILL IN EFFECT SOUTH OF A LINE FROM ALEXANDRIA TO BROWNS VALLEY. THE ATMOSPHERE IS STILL RIPE FOR SEVERE THUNDERSTORMS WITH TORNADOES IN SOUTHWEST MINNESOTA. TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:03 PM CDT | Severe Thunderstorm Warning | MPX | Dodge, Mower | 42 min |
| Jun 19, 8:52 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 28 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.