Alert archive / Minnesota / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 52, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 29, 1991, 1:22 AM CDT for Stearns County, Minnesota. It was in force for 53 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, 1:22 AM CDT (06:22 UTC)
- Expired
- May 29, 1991, 2:15 AM CDT
- In force
- 53 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Stearns County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 29, 1:50 AM CDT | Hail 0.75 | Stearns, 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, 6.4 hours before the alert went out and 111 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 KSTC 290622 SVRSTC MNC145-290715- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 122 AM CDT WED MAY 29 1991 THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 215 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL MINNESOTA ...STEARNS COUNTY INCLUDING ELROSA...ALBANY...MELROSE AND AVON. AT 120 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 40 MILES WEST OF ST CLOUD MINNESOTA. THE THUNDERSTORM HAS PRODUCED MARBLE SIZE HAIL. THE THUNDERSTORM WAS MOVING EAST NORTHEAST AT 45 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCT*IVE 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 28, 8:14 PM CDT, 5 hours 8 minutes before
MNZ014-290215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA 814 PM CDT TUE MAY 28 1991 ...A TORNADO WATCH CONTINUES IN EFFECT UNTIL 11 PM... AT 815 PM THUNDERSTORMS WITH HEAVY RAIN...POSSIBLE SMALL HAIL...AND FREQUENT LIGHTNING WERE LOCATED 20 MILES SOUTHWEST OF WILLMAR NEAR CLARA CITY. ALSO OTHER THUNDERSTORMS EXTENDED FROM LITCHFIELD IN MEEKER COUNTY TO BECKER IN SHERBURNE COUNTY. THESE STORMS WERE MOVING NORTHGEAST AT 40 MPH AND WILL BE IN THE CITIES OF ANNANDALE...MONTICELLO..AND BIG LAKE BY 845 PM. KRUSE NNNN
Special weather statement, May 28, 10:45 PM CDT, 2 hours 37 minutes before
MNZALL-290500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 1045 PM CDT TUE MAY 28 1991 ...TORNADO WATCH NUMBER 416 EXTENDED UNTIL MIDNIGHT FOR PARTS OF SOUTHEAST...SOUTH CENTRAL AND EAST CENTRAL MINNESOTA... THE NATIONAL WEATHER SERVICE HAS EXTENDED TORNADO WATCH NUMBER 416 FOR PARTS OF EAST CENTRAL AND SOUTHEAST MINNESOTA UNTIL MIDNIGHT. THE AREA THAT STILL REMAINS IN THE WATCH IS EAST OF A LINE FROM MORA TO MANKATO TO BLUE EARTH. THIS INCLUDES THE ENTIRE TWIN CITY METRO AREA. THE REST OF THE WATCH WILL EXPIRE AT 11 PM. TORNADO WATCH NUMBER 419 IS STILL IN EFFECT UNTIL 5 AM FOR EXTREME SOUTHEAST MINNESOTA.
Local storm report, May 28, 11:42 PM CDT, 1 hour 40 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ST CLOUD MN 1145 PM CDT TUE MAY 28 1991 837 PM CDT...3/4 INCH HAIL AT PRINSBURG...15 MILES SOUTHWEST OF WILLMAR. AT PENNOCK 6 MILES NORTHWEST OF WILLMAR. AND AT BLOMKEST...12 MILES SOUTH OF WILLMAR. ALL IN KANDIYOHI CNTY. KRUSE
Special weather statement, May 29, 12:34 AM CDT, 48 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, 7 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
The 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, 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, 3:53 AM CDT | Severe Thunderstorm Warning | MPX | Wright | 22 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.