Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 142, NWS Twin Cities, MN

September 13, 1990Barron County, Polk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 13, 1990, 9:41 PM CDT for Barron County, Polk County, Wisconsin. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Sep 13, 1990, 9:41 PM CDT (02:41 UTC)
Expired
Sep 13, 1990, 10:30 PM CDT
In force
49 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Barron County, WI, Polk County, WI

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, 2.7 hours before the alert went out and 132 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 1990-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1164 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 1990-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 364 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
1164 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1792 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
364 m²/s²
0-3 km storm-relative helicity
574 m²/s²
Significant tornado parameter
0.6
Supercell composite
12.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 140243
SVRMSP
MNC025-WIC005-095-140330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
941 PM CDT THU SEP 13 1990
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL MINNESOTA
          ...SOUTHERN CHISAGO
IN WEST CENTRAL WISCONSIN
          ...BARRON...POLK
 
AT 930 PM CDT RADAR INDICATED A LINE OF POTENTIALLY SEVERE
THUNDERSTORMSEXTENDING FROM JUST NORTH OF RICE LAKE WISCONSIN TO NORTH
OF BALSAM LAKE WISCONSIN OVER TO NORTH BRANCH MINNESOTA...OR 25 TO 60 MINORTHEAST OF ST PAUL MINNESOTA.
 
SOME OF THE CITIES IN THE PATH OF THESE POTENTIALLY SEVERE
THUNDERSTOMS ARE...RICE LAKE.. BARRON.. CANTON.. BALSAM LAKE AND..
ST CROIX FALLS WISCONSIN...AND LINDSTROM MINNESOTA.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND wOCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
RICHARSON

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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.