Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 56, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 29, 1991, 3:53 AM CDT for Wright County, Minnesota. It was in force for 22 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 29, 1991, 3:53 AM CDT (08:53 UTC)
- Expired
- May 29, 1991, 4:15 AM CDT
- In force
- 22 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Wright County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 29, 4:00 AM CDT | Thunderstorm Wind 0 | Wright, 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, 8.9 hours before the alert went out and 46 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
- 674 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 290857 SVRMSP MNC171-290930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 353 AM CDT WED MAY 29 1991 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION ... IN CENTRAL MINNESOTA ...WESTERN WRIGHT COUNTY AT 348 AM...A SEVERE THUNDERSTORM WAS LOCATED JUST WEST OF HUTCHINSON IN MCLEOD COUNTY OF CENTRAL MINNESOTA. DAMAGING WINDS ARE LIKELY WITH THIS SEVERE THUNDERSTORM AS IT MOVES TO THE NORTHEAST AT 55 TO 60 MPH. CITIES INCLUDED IN THIS WARNING ARE COKATO...HASTY...AND ANNANDALE. 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. HARRISON
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 29, 12:34 AM CDT, 3 hours 19 minutes before
MNZ013-290630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 1234 AM CDT WED MAY 29 1991 ...A SEVERE THUNDERSTORM WATCH FOR CENTRAL MINNESOTA UNTIL 5 AM... AT 1230 AM THUNDERSTORMS WITH VERY HEAVY RAIN...POSSIBLE HAIL...AND FREQUENT LIGHTNING WERE IN LAC QUI PARLE COUNTY NEAR MADISON AND IN SWIFT COUNTY NEAR BENSON. AT 1217 AM THE CITY OF MADISON...55 MILES WEST OF WILLMAR REPORTED 3/4 INCH SIZE HAIL. SINCE THAT RECPORT THE STORMS HAVE WEAKENED SOME WHAT BUT STILL COULD REDEVELOP QUICKLY. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 30 MPH. NNNN
Special weather statement, May 29, 1:15 AM CDT, 2 hours 38 minutes before
MNZ014-013-290715- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 115 AM CDT WED MAY 29 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 AM FOR THE SOUTHERN THIRD OF MINNESOTA... AT 115 AM CDT A LINE OF THUNDERSTORMS...SOME WITH BRIEF HEAVY RAIN...POSSIBLE HAIL AND FREQUENT LIGHTNING WERE IN NORTHERN LAC QUI PARLE COUNTY OF WEST CENTRAL MINNESOTA AND EXTENDED NORTHEAST TO ALEXANDRIA MINNESOTA. THE STRONGEST THUNDERS&TORM WAS NEAR BROOTEN...45 MILES WEST OF ST CL;OUD. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 45 MPH. THE THUNDERSTORMS WILL REACH ELROSA BY 125 AM CDT AND ALBANY BY 140 AM CDT. NNNN
Special weather statement, May 29, 2:30 AM CDT, 1 hour 23 minutes before
MNZ019-290900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 230 AM CDT WED MAY 29 1991 ...SEVERE THUNDERSTORM WATCH NUMBER 419 HAS BEEN CANCELLED FOR EXTREME SOUTHEAST MINNESOTA... THE FOLLOWING COUNTIES HAVE BEEN DROPPED FROM THE SEVERE THUNDERSTORM WATCH #419...WABASHA...OLMSTEAD...WINONA...FILLMORE...AND HOUSTON. HOWEVER...A NEW SEVERE THUNDERSTORM WATCH #423 HAS JUST BEEN ISSUED FOR A LARGE PART OF CENTRAL AND SOUTHERN MINNESOTA. PLEASE LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS ON THIS NEW WATCH. ALSO...THE FLASH FLOOD WATCH CONTINUES FOR SOUTHERN MINNESOTA UNTIL 6 AM. ANOTHER ONE OR TWO INCHES ARE STILL POSSIBLE THE REST OF TONIGHT OVER RAIN SOAKED GROUND. BE CAREFUL OUT THERE. TDK
Special weather statement, May 29, 3:04 AM CDT, 49 minutes before
MNZ014-013-011-012-290900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 304 AM CDT WED MAY 29 1991 ...THUNDERSTORMS MOVE OVER MILLE LACS LAKE... AT 3025 AM CDT THUNDERSTORMS WERE LOCATED ALONG THE SOUTH SHORE OF MILLE LACS LAKE. THE THUNDERSTORMS WERE PART OF A LARGE AREA OF STORMS WHICH EXTENDED SOUTHWEST TO LITTLE FALLS AND CONTINUED SOUTHWEST TO BROOTEN...45 MILES WEST OF ST CLOUD. THE THUNDERSTORMS WERE MOVINGR NORTHEAST AT 40 MPH. THESE THUNDERSTORMS HAVE PRODUCED SMALL HAIL AND ARE LIKELY TO DROP MORE ALONG THEIR PATH. ALSO BRIEF GUSTY WINDS AND VERY HEAVY RAIN CAN BE EXPECTED. NNNN
Special weather statement, May 29, 3:08 AM CDT, 45 minutes before
MNZ014-013-011-012-290900- SPECIAL WEATHER STATEMENT...CORRECTED FOR TIME NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 304 AM CDT WED MAY 29 1991 ...THUNDERSTORMS MOVE OVER MILLE LACS LAKE... AT 302 AM CDT THUNDERSTORMS WERE LOCATED ALONG THE SOUTH SHORE OF MILLE LACS LAKE. THE THUNDERSTORMS WERE PART OF A LARGE AREA OF STORMS WHICH EXTENDED SOUTHWEST TO LITTLE FALLS AND CONTINUED SOUTHWEST TO BROOTEN...45 MILES WEST OF ST CLOUD.S THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. THESE THUNDERSTORMS HAVE PRODUCED SMALL HAIL AND ARE LIKELY TO DROP MORE ALONG THEIR PATH. ALSO BRIEF GUSTY WINDS AND VERY HEAVY RAIN CAN BE EXPECTED. NNNN
Local storm report, May 29, 3:13 AM CDT, 40 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MINNEAPOLIS, MN
310 AM CST WED MAY 29 1991
ATTENTION SELS...
...PRELIMINARY REPORT...
TIME(CST) REPORT/CO.
************ **********
2320-2350 CST CHIPPEWA COUNTY...STRONG WINDS CAUSED WIDESPREAD DAMAGEY
FROM BLOOMER TO CORNELL...MUCH OF THE AREA WITHOUT
POWER...DAMAGE MAINLY TREES AND POWER LINES DOWNED.
A FEW TREES DOWN WEST OF _CHIPPEWA FALLS.
RNDThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:12 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 48 min |
| May 28, 8:26 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 49 min |
| May 28, 8:28 PM CDT | Tornado Warning | MPX | Redwood | 32 min |
| May 28, 8:51 PM CDT | Severe Thunderstorm Warning | MPX | Redwood, Renville | 54 min |
| May 28, 8:54 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 21 min |
| May 28, 8:59 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti | 46 min |
| May 28, 9:02 PM CDT | Severe Thunderstorm Warning | MPX | Meeker | 43 min |
| May 28, 9:25 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley, Wright | 50 min |
| May 28, 9:40 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 50 min |
| May 28, 10:02 PM CDT | Severe Thunderstorm Warning | MPX | Carver | 43 min |
| May 28, 10:10 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet | 35 min |
| May 28, 10:10 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown | 30 min |
| May 28, 10:20 PM CDT | Severe Thunderstorm Warning | MPX | Sibley | 40 min |
| May 28, 10:27 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Scott | 48 min |
| May 28, 10:48 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 27 min |
| May 28, 10:57 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Ramsey, Washington | 63 min |
| May 28, 10:57 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 63 min |
| May 28, 11:11 PM CDT | Severe Thunderstorm Warning | MPX | Rice | 49 min |
| May 28, 11:39 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 36 min |
| May 29, 1:22 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 53 min |
| May 29, 2:18 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 27 min |
| May 29, 3:25 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Stearns | 35 min |
| May 29, 3:38 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 37 min |
| May 29, 3:58 AM CDT | Severe Thunderstorm Warning | MPX | Meeker, Stearns | 32 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.