Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 97, NWS Twin Cities, MN

September 1, 1993Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 1, 1993, 11:57 PM CDT for Renville County, Minnesota. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Sep 1, 1993, 11:57 PM CDT (04:57 UTC)
Expired
Sep 2, 1993, 12:23 AM CDT
In force
26 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Renville County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 5.0 hours before the alert went out and 107 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 1993-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 1993-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1177 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 020459
SVRMSP
MNC085-129-020600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1157 PM CDT WED SEP 1 1993
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  100 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MINNESOTA
 
   ...MCLEOD COUNTY...EASTERN RENVILLE COUNTY
 
AT 1155 PM...SEVERE THUNDERSTORMS WERE OCCURRING JUST NORTHEAST OF
OLIVIA...ABOUT 15 MILES NORTHEAST OF REDWOOD FALLS...IN RENVILLE COUNTY
OF SOUTHWEST MINNESOTA. LARGE HAIL IS LIKELY WITH THESE THUNDERSTORMS.
MOVEMENT WAS TO THE EAST AT 35 MILES AN HOUR. TOWNS IN THE PATH OF THESE
STORMS INCLUDE OLIVIA...BIRD ISLAND...HECTOR...CHURCHILL...
HUTCHINSON...STEWART...GLENCOE...AND SILVER LAKE.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM.  PEOPLE IN MvOBILE HOMES SHOULD GO
TO A STORM SHELTER.
HARRISON/KRAFT

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, Sep 1, 10:36 PM CDT, 1 hour 21 minutes before
WIZ003-006-MNZALL-020445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1036 PM CDT WED SEP 1 1993

...STRONG THUNDERSTORMS ENTER WESTERN MINNESOTA...

STRONG THUNDERSTORMS HAD ENTERED EXTREME WESTERN MINNESOTA FROM SOUTH
DAKOTA AT 1030 PM.  THE MOST POWERFUL STORM WAS LOCATED BETWEEN THE
TOWNS OF PROVIDENCE AND BOYD IN SOUTHERN LAC QUI PARLE COUNTY.  ANOTHER
STRONG STORM WAS JUST CROSSING THE MINNESOTA RIVER INTO WESTERN CHIPPEWA
COUNTY OF WESTERN MINNESOTA.

THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE HAIL...STRONG GUSTY
WINDS...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING OR CAMPING SHOULD BE READY
TO SEEK SAFE SHELTER.

MOVEMENT WAS TO THE EAST AT 25 TO 30 MILES AN HOUR.  CITIES AND TOWNS IN
THE PATH OF THESE STORMS INCLUDE PROVIDENCE...BOYD...CLARKFIELD...
LAC QUI PARLE...WATSON...GRANITE FALLS...AND MONTEVIDEO.
KRAFT
Special weather statement, Sep 1, 10:37 PM CDT, 1 hour 20 minutes before
WIZ003-006-MNZALL-020445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1036 PM CDT WED SEP 1 1993

...STRONG THUNDERSTORMS ENTER WESTERN MINNESOTA...

STRONG THUNDERSTORMS HAD ENTERED EXTREME WESTERN MINNESOTA FROM SOUTH
DAKOTA AT 1030 PM.  THE MOST POWERFUL STORM WAS LOCATED BETWEEN THE
TOWNS OF PROVIDENCE AND BOYD IN SOUTHERN LAC QUI PARLE COUNTY.  ANOTHER
STRONG STORM WAS JUST CROSSING THE MINNESOTA RIVER INTO WESTERN CHIPPEWA
COUNTY OF WESTERN MINNESOTA.

THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE HAIL...STRONG GUSTY
WINDS...FREQUENT DEADLY LIGHTNING...AND VERY HEAVY RAINFALL.  PERSONS
ENGAGED IN OUTDOOR ACTIVITIES SUCH AS BOATING OR CAMPING SHOULD BE RE:ADY
TO SEEK SAFE SHELTER.

MOVEMENT WAS TO THE EAST AT 25 TO 30 MILES AN HOUR.  CITIES AND TOWNS IN
THE PATH OF THESE STORMS INCLUDE PROVIDENCE...BOYD...CLARKFIELD...
LAC QUI PARLE...WATSON...GRANITE FALLS...AND MONTEVIDEO.
KRAFT

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 11:19 PM CDTSevere Thunderstorm WarningMPXRenville56 min
Sep 1, 11:24 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi36 min
Sep 1, 11:57 PM CDTSevere Thunderstorm WarningMPXMcLeod63 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.