Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 66, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 1993, 8:34 AM CDT for Brown County, Nicollet County, Minnesota. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1993, 8:34 AM CDT (13:34 UTC)
- Expired
- Jul 31, 1993, 9:00 AM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Brown County, MN, Nicollet County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 1.6 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
- 3174 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRST 311334 RRA SVRRST MNC015-103-311400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ROCHESTER MN 834 AM CDT SAT JUL 31 1993 THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL MINNESOTA ...BROWN COUNTY...NICOLLET COUNTY AT 825 AM BROWN COUNTY SHERIFF REPORTED A BARN WAS BLOWN DOWN NEAR EVAN OR 19 MILES NORTHWEST OF NEW ULM. AT 830 RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS MOVING EAST AT 50 MPH MOVING INTO WESTERN BROWN COUNTY. SOME CITIES IN THE PATH OF THIS SEVERE THUNDERSTORM ARE SLEEPY EYE...ST GEORGE..AND NEW ULM. WINDS IN EXCESS OF 60 MPH...MAKE THIS A VERY DANGEROUS STORM. GET READY FOR DAMAGING WINDS. HOUSES COULD BE BADLY DAMAGED... SO HEAD FOR THE BASEMENT. MOBILE HOMES COULD BE OVERTURNED. PEOPLE IN MOBILE HOMES SHOULD FLEE TO A STORM SHEVLTER. &
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, Jul 31, 7:00 AM CDT, 1 hour 34 minutes before
MNZ013-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 700 AM CDT SAT JUL 31 1993 ...STRONG WINDS MOVING INTO WEST CENTRAL MINNESOTA... AN AREA OF STRONG WINDS ALONG WITH SOME PRECIPITATION IS MOVING INTO WEST CENTRAL MINNESOTA AND SHOULD AFFECT THAT AREA UNTIL AROUND 9 AM. SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO NEAR 60 MPH HAVE BEEN REPORTED IN EAST CENTRAL SOUTH DAKOTA AND MOVING TO THE EAST. THIS AREA OF WINDS SHOULD MOVE INTO BIG STONE...LAC QUI PARLE...AND YELLOW MEDICINE COUNTIES BY 715 AM WITH SWIFT AND CHIPPEWA COUNTIES BEING AFFECTED BY 8 AM. PERSONS IN THESE AREAS SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS AND TAKE NECESSARY PRECAUTIONS. PARKIN
Special weather statement, Jul 31, 7:08 AM CDT, 1 hour 26 minutes before
MNZ013-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 700 AM CDT SAT JUL 31 1993 ...STRONG WINDS MOVING INTO WEST CENTRAL MINNESOTA... AN AREA OF STRONG WINDS ALONG WITH SOME PRECIPITATION IS MOVING INTO WEST CENTRAL MINNESOTA AND SHOULD AFFECT THAT AREA UNTIL AROUND 9 AM. SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS TO NEAR 60 MPH HAVE BEEN REPORTED IN EAST CENTRAL SOUTH DAKOTA AND MOVING TO THE EAST. THIS AREA OF WINDS SHOULD MOVE INTO BIG STONE...LAC QUI PARLE...AND YELLOW MEDICINE COUNTIES BY 715 AM WITH SWIFT AND CHIPPEWA COUNTIES BEING AFFECTED BY 8 AM. PERSONS IN THESE AREAS SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS AND TAKE NECESSARY PRECAUTIONS. PARKIN
Special weather statement, Jul 31, 8:10 AM CDT, 24 minutes before
MNZ017-311515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 810 AM CDT SAT JUL 31 1993 A LINE OF STRONG THUNDERSTORMS EXTENDS SOUTH FROM BENSON TO REDWOOD FALLS SOUTHWEST TO NEAR WORTHINGTON. TORRENTIAL RAINFALL WITH 40 TO 50 MPH WINDS ARE COMMON WITH THUNDERSTORMS WITHIN THIS SQUALL LINE. MOVEMENT OF THESE STORMS IS EASTWARD AT 30 MPH AND THIS WILL LIKELY MEAN SOME OF THE STRONGER STORMS IN THE LINE WILL CROSS SOUTH REDWlOOD FALLS BETWEEN 810 AM AND 845 AM THIS SATURDAY MORNING. TAKE SHELTER IF THREATENING CONDITIONS APPROACH YOUR AREA. WET
Special weather statement, Jul 31, 8:10 AM CDT, 24 minutes before
MNZ017-311515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 810 AM CDT SAT JUL 31 1993 A LINE OF STRONG THUNDERSTORMS EXTENDS SOUTH FROM BENSON TO REDWOOD FALLS SOUTHWEST TO NEAR WORTHINGTON. TORRENTIAL RAINFALL WITH 40 TO 50 MPH WINDS ARE COMMON WITH THUNDERSTORMS WITHIN THIS SQUALL LINE. MOVEMENT OF THESE STORMS IS EASTWARD AT 30 MPH AND THIS WILL LIKELY MEAN SOME OF THE STRONGER STORMS IN THE LINE WILL CROSS SOUTH REDWOOD FALLS BETWEEN 810 AM AND 845 AM THIS SATURDAY MORNING. TAKE SHELTER IF THREATENING CONDITIONS APPROACH YOUR AREA. WET
Special weather statement, Jul 31, 8:15 AM CDT, 19 minutes before
MNZ013-14-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 815 AM CDT SAT JUL 31 1993 ...THUNDERSTORMS WITH STRONG WINDS AND HEAVY RAIN IN CENTRAL MINNESOTA.. A LINE OF THUNDERSTORMS WITH WINDS GUSTING TO NEAR 50 MPH AND HEAVY RAIN IS MOVING INTO CENTRAL MINNESOTA...SPECIFICALLY SWIFT...CHIPPEWA ...AND SOUTHERN POPE COUNTIES. THIS LINE OF STORMS IS MOVING TO THE EAST AT 30 MPH AND SHOULD CONTINUE TO AFFECT THE FOREMENTIONED AREAS THROUGH 9 AM. KANDIYOHI COUNTY WILL BE THE NEXT AREA AFFECTED AROUND 9 AM. PERSONS IN THESE AREAS SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER IF NECESSARY. PARKIN
Special weather statement, Jul 31, 8:18 AM CDT, 16 minutes before
MNZ013-14-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST CLOUD MN 815 AM CDT SAT JUL 31 1993 ...THUNDERSTORMS WITH STRONG WINDS AND HEAVY RAIN IN CENTRAL MINNESOTA.. A LINE OF THUNDERSTORMS WITH WINDS GUSTING TO NEAR 50 MPH AND HEAVY RAIN IS MOVING INTO CENTRAL MINNESOTA...SPECIFICALLY SWIFT...CHIPPEWA ...AND SOUTHERN POPE COUNTIES. THIS LINE OF STORMS IS MOVING TO THE EAST AT 30 MPH AND SHOULD CONTINUE TO AFFECT THE FOREMENTIONED AREAS THROUGH 9 AM. KANDIYOHI COUNTY WILL BE THE NEXT AREA AFFECTED AROUND 9 AM. PERSONS IN THESE AREAS SHOULD BE AWARE OF CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER IF NECESSARY. PARKIN
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:33 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Watonwan | 27 min |
| Jul 31, 4:31 AM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 29 min |
| Jul 31, 4:31 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth | 29 min |
| Jul 31, 5:24 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Le Sueur, Nicollet | 36 min |
| Jul 31, 5:43 AM CDT | Severe Thunderstorm Warning | MPX | Dodge, Mower | 32 min |
| Jul 31, 8:20 AM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 55 min |
| Jul 31, 9:14 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Wright | 61 min |
| Jul 31, 9:14 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 46 min |
| Jul 31, 9:40 AM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 50 min |
| Jul 31, 9:49 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Scott | 43 min |
| Jul 31, 9:50 AM CDT | Severe Thunderstorm Warning | MPX | Steele | 30 min |
| Jul 31, 10:01 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Ramsey, Washington | 59 min |
| Jul 31, 10:03 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 57 min |
| Jul 31, 10:20 AM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 55 min |
| Jul 31, 10:27 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 63 min |
| Jul 31, 10:38 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 52 min |
| Jul 31, 11:29 AM CDT | Severe Thunderstorm Warning | MPX | Stearns | 61 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1993Every severe thunderstorm warning in 1993
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.