Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 8, NWS Twin Cities, MN

April 25, 1994Brown County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 25, 1994, 7:20 PM CDT for Brown County, Nicollet County, Minnesota. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1994, 7:20 PM CDT (00:20 UTC)
Expired
Apr 25, 1994, 7:45 PM CDT
In force
25 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Brown County, MN, Nicollet County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 0.3 hours before the alert went out and 93 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 1994-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLEL10008507005003002001001 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 1994-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 571 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
8 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
461 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
571 m²/s²
0-3 km storm-relative helicity
698 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRST 260022
SVRRST
MNC015-103-260045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
720 PM CDT MON APR 25 1994
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MINNESOTA
 
   ...NORTHERN BROWN COUNTY...WESTERN NICOLLET COUNTY
 
AT 715 PM RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF
SLEEPY EYE OR 12 MILES WEST OF NEW ULM. THIS THUNDERSTORM IS MOVING
TO THE NORTH AT 20 MPH AND WILL PASS THROUGH ST GEORGE...ESSIG AND
LAFEYETTE BY 745 PM.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE
OR NO WARNING.  STAY INDOORS...REMAIN CALM AND BE READY TO MOVE
QUICKLY TO THE BASEMENT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 12:11 PM CDTTornado WarningMPXWashington19 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994

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.