Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 93, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 1991, 11:08 PM CDT for Carver County, Hennepin County, Wright County, Minnesota. It was in force for 37 min. 6 reports 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 30, 1991, 11:08 PM CDT (04:08 UTC)
- Expired
- Jun 30, 1991, 11:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Carver County, MN, Hennepin County, MN, Wright County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 30, 11:20 PM CDT | Thunderstorm Wind 52 | Hennepin, MN | |
| Jun 30, 11:38 PM CDT | Thunderstorm Wind 0 | Wright, MN | |
| Jun 30, 11:38 PM CDT | Thunderstorm Wind 0 | Hennepin, MN | |
| Jun 30, 11:45 PM CDT | Thunderstorm Wind 0 | Hennepin, MN | |
| Jun 30, 11:50 PM CDT | Thunderstorm Wind 52 | Carver, MN | |
| Jun 30, 11:55 PM CDT | Thunderstorm Wind 0 | Hennepin, 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, 4.1 hours before the alert went out and 20 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 KMSP 010409 SVRMSP MNC171-019-053-010445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1108 PM CDT SUN JUN 30 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MINNESOTA ...EASTERN WRIGHT COUNTY IN EAST CENTRAL MINNESOTA ...NORTHERN CARVER COUNTY...WESTERN HENNEPIN COUNTY AT 1107 PM...RADAR INDCIATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR BUFFALO...TO LESTER PRAIRIE...OR 30 MILES WEST AND NORTHWEST OF DOWNTOWN MINNEAPOLIS. SOME COMMUNITIES INCLUDED IN THE WARNING ARE...BUFFALO...WACONIA... THE LAKE MINNETONKA AREA AND PLYMOUTH. THE STORMS WERE MOVING EAST AT 30 TO 35 MILES AN HOUR AND WILL BE AFFECTING THE CORCORAN...ORONO AND WACONIA AREA BY 1130 PM. PERSONS IN THE WARNED AREA SHOULD MOVE INDOORS AND PREPARE FOR STRONG WINDS IN EXCESS OF 60 MILES AN HOUR...AND VERY HEAVY DOWNPOURS. 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. DWE
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
Local storm report, Jun 30, 9:17 PM CDT, 1 hour 51 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, 1 hour 42 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, 1 hour 40 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.Special weather statement, Jun 30, 9:48 PM CDT, 1 hour 20 minutes before
MNZ010-011-012-013-014-015-016-017-018-WIZ003-006-010345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 948 PM CDT SUN JUN 30 1991 ...STRONG THUNDERSTORM CONTINUE TO ADVANCE EAST ACROSS SOUTHERN AND CENTRAL MINNESOTA... A LINE OF WIDESPREAD THUNDERSTORMS...SOME WITH GUSTY WINDS AND VERY HEAVY RAINS AS WELL AS POSSIBILY SOME SMALL HAIL CONTINUED TO PUSH EAST AROUND 25 MPH ACROSS SOUTHERN AND CENTRAL MINNESOTA. SOME OF THE STRONGER THUNDERSTORMS WERE CONCENTRATED ABOUT 75 MILES WEST NORTHWEST OF THE TWIN CITIES. THE LEADING EDGE OF THESE STRONGER STORMS RAN FROM LONG PRAIRIE TO LITCHFIELD TO FAIRFAX. WILLMAR REPORTED WINDS IN EXCESS OF 40 MPH AROUND 9PM. GENERAL SHOWERS AND THUNDERSTORMS WERE DETECTED AS FAR NORTH AS BEMIDJI AND SOUTH INTO NORTHWEST IOWA. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE IN NORTHWEST WISCONSIN IN THE GRANTSBURG..MINONG..HAWARD AREA. REMEMBER THAT A SEVERE THUNDERSTOPRM WATCH REMAINS IN EFFECT UNTIL 2AM FOR MUCH OF THE SOUTERN HALF OF MINNESOTA. PAULSON
Special weather statement, Jun 30, 10:17 PM CDT, 51 minutes before
MNZ012-014-015-016-010415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1016 PM CDT SUN JUN 30 1991 ...STRONG THUNDERSTORMS MOVING INTO WRIGHT AND MC CLEOD COUNTIES... AT 1015 PM...NATIONAL WEATHER SERVICE RADAR WAS SHOWING AN AREA OF THUNDERSTORMS BEGINNING TO MOVE INTO EXTREME WESTERN SECTIONS OF WRIGHT AND MC CLEOD COUNTY...WEST OF COKATO TO HUTCHINSON. THE STORMS WERE MOVING EAST AT 30 MILES AN HOUR. PRESENT MOVEMENT WOULD BRING THE THUNDERSTORMS TO A LINE FROM BUFFALO TO LESTER PRARIE BY 11 PM. THESE STORMS COULD PRODUCE STRONG WIND GUSTS IN EXCESS OF 50 MILES AN HOUR AND BLINDING RAIN. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 2 AM MONDAY qMORNING OVER SOUTHERN MINNESOTA. KEEP AN EYE TO THE SKY AND PREPARE TO MOVE INDOORS IF THREATENING WEATHER APPROACHES YOUR AREA. DWE
Special weather statement, Jun 30, 10:47 PM CDT, 21 minutes before
MNZ012-014-015-016-010445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1045 PM CDT SUN JUN 30 1991 ...STRONG THUNDERSTORMS WERE MOVING THROUGH CENTRAL MINNESOTA JUST WEST OF THE TWIN CITIES... AT 1030 PM...THUNDERSTROMS WITH INTENSE RAINSHOWERS...SMALL HAIL AND BRIEF BUT STRONG WIND GUSTS...WERE CONCENTRATED OVER CENTRAL MINNESOTA. THE STRONGEST WERE LOCATED FROM AROUND OLIVIA NORTH THROUGH LITCHFIELD AND BUFFALO UP TOWARD FOLEY. THESE STORMS WERE PART OF A LARGE AREA OF SHOWERS AND THUNDERSTORMS DETECTED ACROSS CENTRAL MINNESOTA...FROM GRAND RAPIDS SOUTH THROUGH LAKE MILLE LACS... ST CLOUD AND REDWOOD FALLS DOWN TO THE IOWA BORDER SOUTH OF JACKSON. MOVEMENT WAS TO THE NORTHEAST AT 30 MILES AN HOUR...IF THE STORMS CONTINUE THIS PRESENT MOVEMENT THEY WILL MOVE THROUGH ST CLOUD...AND ELK RIVER BY...1130 PM. BE PREPARED TO MOVE INDOORS IF THREATENING WEATHER APPROACHES YOUR AREA. DWE
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, 9:45 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi | 36 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.