Alert archive / Minnesota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 64, NWS Twin Cities, MN

August 17, 1992Big Stone County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 17, 1992, 1:41 PM CDT for Big Stone County, Minnesota. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Aug 17, 1992, 1:41 PM CDT (18:41 UTC)
Expired
Aug 17, 1992, 2:30 PM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Big Stone County, MN

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 6.7 hours before the alert went out and 167 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, Aberdeen, SD at 12:00Z on 1992-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 702 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, Aberdeen, SD at 12:00Z on 1992-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
702 J/kg
Mixed-layer CIN
-189 J/kg
Mixed-layer LCL
1259 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
56 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 KSTC 171841
SVRSTC
MNC011-171930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
141 PM CDT MON AUG 17 1992
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL MINNESOTA
 
   ...BIG STONE COUNTY
 
AT 137 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM TO THE NORTH OF
CLINTON 55 MILES SOUTHWEST OF ALEXANDRIA. THIS STORM WAS MOVING TO
THE SOUTHEAST AT 30 MPH AND WILL PASS THROUGH THE TOWN OF CLINTON
BY 150 PM. ALL PEOPLE IN THE PATH OF THIS STORM SHOULD SEEK SHELTER
IMMEDIATELY.
 
 
 
IF YOU ARE CAUGHT OUTSIDE...S$EEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 1:02 PM CDTSevere Thunderstorm WarningMPXPope43 min
Aug 17, 1:28 PM CDTSevere Thunderstorm WarningMPXKandiyohi32 min
Aug 17, 2:03 PM CDTSevere Thunderstorm WarningMPXKandiyohi27 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1992Every severe thunderstorm warning in 1992

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.