Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 32, NWS Twin Cities, MN

June 5, 1990McLeod County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 5, 1990, 4:33 AM CDT for McLeod County, Sibley County, Minnesota. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jun 5, 1990, 4:33 AM CDT (09:33 UTC)
Expired
Jun 5, 1990, 5:00 AM CDT
In force
27 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties McLeod County, MN, Sibley County, MN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 9.6 hours before the alert went out and 54 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 1990-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939587897Sfc1 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
1422 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
187 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 050933
SVRMSP
MNC085-143-051000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
433 AM CDT TUE JUN 5 1990
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN CENTRAL MINNESOTA
          ...MCLEOD...SIBLEY
 
AT 433 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM BETWEEN
WINTHROP AND BROWNTON...ABOUT 60 MILES WESTSOUTHWEST OF DOWNTOWN
MINNEAPOLIS.  THE STORM WAS RIGHT ON THE COUNTY LINE AND WAS
MOVING EAST AT ABOUT 50 MPH.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND V-ERY 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.
 
KRAUSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 4:20 AM CDTSevere Thunderstorm WarningMPXRenville40 min
Jun 5, 4:39 AM CDTSevere Thunderstorm WarningMPXLe Sueur, Nicollet36 min
Jun 5, 5:23 AM CDTSevere Thunderstorm WarningMPXDodge, Freeborn, Mower, Steele37 min
Jun 5, 5:23 AM CDTSevere Thunderstorm WarningMPXGoodhue, Rice37 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1990Every severe thunderstorm warning in 1990

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.