Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 51, NWS Twin Cities, MN

July 3, 1993Redwood County, Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 1993, 11:58 PM CDT for Redwood County, Renville County, Minnesota. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1993, 11:58 PM CDT (04:58 UTC)
Expired
Jul 4, 1993, 12:23 AM CDT
In force
25 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Redwood County, MN, Renville County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 5.0 hours before the alert went out and 123 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1993-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1993-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
20 J/kg
Mixed-layer CIN
-475 J/kg
Mixed-layer LCL
1349 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
599 m²/s²
Significant tornado parameter
0.0
Supercell composite
16.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 040500
SVRMSP
MNC129-127-040530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1158 PM CDT SAT JUL 3 1993
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MINNESOTA
 
   ...EASTERN RENVILLE COUNTY
 
IN SOUTHWEST MINNESOTA
 
   ...EASTERN REDWOOD COUNTY
 
AT 1155 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH AND
SOUTH OF REDWOOD FALLS.
 
THESE THUNDERSTORMS WERE MOVING EAST AT 35 MPH AND SOME CITIES IN
THE PATH OF THESE THUNDERSTORMS ARE MORTON..MORGAN..AND FAIRFAX.
 
VERY STRONG WINDS ARE POSSIBLE WITH THESE THUNDERSTORMS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM.  PEOPLE IN MOBILE HOMES SHOULD GO
TO A STORM SHELTER.
 
JPR

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 3, 9:30 PM CDT, 2 hours 28 minutes before
MNZ013-014-040330

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT SAT JUL 3 1993

...TORNADO WATCH FOR WEST-CENTRAL MINNESOTA UNTIL 1 AM CDT...
...FLASH FLOOD WATCH FOR WEST CENTRAL AND SOUTHWEST MINNESOTA UNTIL
6 AM CDT...
...TORNADO WATCH FOR PARTS OF CENTRAL MINNESOTA UNTIL 4 AM CDT...

AT 920 AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...HAD
DEVELOPED IN STEARNS COUNTY OF CENTRAL MINNESOTA. THESE THUNDERSTORMS
WERE MOVING NORTHEAST AT 20 MILES AN HOUR. THEY WILL MOVE INTO THE
ST CLOUD AND SARTELL AREAS BY 1000 PM AND INTO THE ST STEPHEN AREA BY
1030 PM.

THESE STORMS HAD PRODUCED HEAVY RAIN...SMALL HAIL AND MODERATE WINDS
IN THE AVON AREA 15 MILES NORTHWEST OF ST CLOUD. PERSONS IN ST CLOUD...
SARTELL...ST JOSEPH AND ST STEPHEN SHOULD BE ALERT TO THESE STORMS AS
THEY MOVE THROUGH THE AREA AND BE PREPARED TO SEEK SHELTER IF
THREATENING CONDITIONS ARISE.

HAYS
Special weather statement, Jul 3, 9:33 PM CDT, 2 hours 25 minutes before
MNZ013-014-040330

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
930 PM CDT SAT JUL 3 1993

...TORNADO WATCH FOR WEST-CENTRAL MINNESOTA UNTIL 1 AM CDT...
...FLASH FLOOD WATCH FOR WEST CENTRAL AND SOUTHWEST MINNESOTA UNTIL
6 AM CDT...
...TORNADO WATCH FOR PARTS OF CENTRAL MINNESOTA UNTIL 4 AM CDT...

AT 920 AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...HAD
DEVELOPED IN STEARNS COUNTY OF CENTRAL MINNESOTA. THESE THUNDERSTORMS
WERE MOVING NORTHEAST AT 20 MILES AN HOUR. THEY WILL MOVE INTO THE
ST CLOUD AND SARTELL AREAS BY 1000 PM AND INTO THE ST STEPHEN AREA BY
1030 PM.

THESE STORMS HAD PRODUCED HEAVY RAIN...SMALL HAIL AND MODERATE WINDS
IN THE AVON AREA 15 MILES NqORTHWEST OF ST CLOUD. PERSONS IN ST CLOUD...
SARTELL...ST JOSEPH AND ST STEPHEN SHOULD BE ALERT TO THESE STORMS AS
THEY MOVE THROUGH THE AREA AND BE PREPARED TO SEEK SHELTER IF
THREATENING CONDITIONS ARISE.

HAYS
Special weather statement, Jul 3, 11:14 PM CDT, 44 minutes before
MNZ015-017-040500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1100 PM CDY JUL 3 1993

...STRONG THUNDERSTORMS MOVING INTO PORTIONS OF CENTRAL MINNESOTA...

AT 1100 PM..RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL
MINNESOTA ALONG A LINE FROM GRANITE FALLS TO WALNUT GROVE OR ABOUT 25
MILES WEST OF REDWOOD FALLS.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS OF 40 TO
50 MPH WINDS..HAIL..TORRENTIAL RAIN..AND DEADLY LIGHTNING AS THEY MOVE EAST..
NORTHEAST AT 35 MPH.

THESE THUNDERSTORMS WILL BE AFFECTING THE CITIES OF OLIVIA..AND REDWOOD
FALLS BETWEEN 1130 PM AND MIDNIGHT.

REMEMBER THAT A TORNADO WATCH IS IN EFFECT UNTIL 1 AM FOR MUCH OF
SOUTHWEST MINNESOTA UNTIL 1 AM AND FOR CENTRAL MINNESOTA UNTIL 4AM..
JPR
Special weather statement, Jul 3, 11:14 PM CDT, 44 minutes before
MNZ015-017-040500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1100 PM CDY JUL 3 1993

...STRONG THUNDERSTORMS MOVING INTO PORTIONS OF CENTRAL MINNESOTA...

AT 1100 PM..RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL
MINNESOTA ALONG A LINE FROM GRANITE FALLS TO WALNUT GROVE OR ABOUT 25
MILES WEST OF REDWOOD FALLS.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS OF 40 TO
50 MPH WINDS..HAIL..TORRENTIAL RAIN..AND DEADLY LIGHTNING AS THEY MOVE EAST..
NORTHEAST AT 35 MPH.

THESE THUNDERSTORMS WILL BE AFFECTING THE CITIES OF OLIVIA..AND REDWOOD
FALLS BETWEEN 1130 PM AND MIDNIGHT.

REMEMBER THAT A TORNADO WATCH IS IN EFFECT UNTIL 1 AM FOR MUCH OF
SOUTHWEST MINNESOTA UNTIL 1 AM AND FOR CENTRAL MINNESOTA UNTIL 4AM..
JPR
Special weather statement, Jul 3, 11:15 PM CDT, 43 minutes before
MNZ015-017-040500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1100 PM CDT JUL 3 1993

...STRONG THUNDERSTORMS MOVING INTO PORTIONS OF CENTRAL MINNESOTA...

AT 1100 PM..RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL
MINNESOTA ALONG A LINE FROM GRANITE FALLS TO WALNUT GROVE OR ABOUT 25
MILES WEST OF REDWOOD FALLS.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS OF 40 TO
50 MPH WINDS..HAIL..TORRENTIAL RAIN..AND DEADLY LIGHTNING AS THEY MOVE EAST..
NORTHEAST AT 35 MPH.

THESE THUNDERSTORMS WILL BE AFFECTING THE CITIES OF OLIVIA..AND REDWOOD
FALLS BETWEEN 1130 PM AND MIDNIGHT.

REMEMBER THAT A TORNADO WATCH IS IN EFFECT UNTIL 1 AM FOR MUCH OF
SOUTHWEST MINNESOTA UNTIL 1 AM AND FOR CENTRAL MINNESOTA UNTIL 4AM..
JPR
Special weather statement, Jul 3, 11:15 PM CDT, 43 minutes before
MNZ015-017-040500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1100 PM CDT JUL 3 1993

...STRONG THUNDERSTORMS MOVING INTO PORTIONS OF CENTRAL MINNESOTA...

AT 1100 PM..RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO WEST CENTRAL
MINNESOTA ALONG A LINE FROM GRANITE FALLS TO WALNUT GROVE OR ABOUT 25
MILES WEST OF REDWOOD FALLS.

THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS OF 40 TO
50 MPH WINDS..HAIL..TORRENTIAL RAIN..AND DEADLY LIGHTNING AS THEY MOVE EAST..
NORTHEAST AT 35 MPH.

THESE THUNDERSTORMS WILL BE AFFECTING THE CITIES OF OLIVIA..AND REDWOOD
FALLS BETWEEN 1130 PM AND MIDNIGHT.

REMEMBER THAT A TORNADO WATCH IS IN EFFECT UNTIL 1 AM FOR MUCH OF
SOUTHWEST MINNESOTA UNTIL 1 AM AND FOR CENTRAL MINNESOTA UNTIL 4AM..
JPR

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 3, 8:57 PM CDTSevere Thunderstorm WarningMPXBig Stone63 min
Jul 3, 10:38 PM CDTTornado WarningMPXPope22 min
Jul 3, 11:02 PM CDTTornado WarningMPXPope28 min
Jul 3, 11:33 PM CDTTornado WarningMPXPope27 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.