Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 71, NWS Twin Cities, MN

June 25, 1994Benton County, Sherburne County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 25, 1994, 4:35 PM CDT for Benton County, Sherburne County, Minnesota. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 25, 1994, 4:35 PM CDT (21:35 UTC)
Expired
Jun 25, 1994, 5:30 PM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Benton County, MN, Sherburne County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 9.6 hours before the alert went out and 83 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 12:00Z on 1994-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 434 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 12:00Z on 1994-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
434 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1297 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSTC 252135 RRA
SVRSTC
MNC009-141-252230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
435 PM CDT SAT JUN 25 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MINNESOTA
 
   ...WESTERN BENTON COUNTY...WESTERN SHERBURNE COUNTY
 
AT 425 PM A RADAR SHOWED A SEVERE THUNDERSTORM JUST NORTHWEST OF
ST CLOUD MOVING SOUTHEAST AT 20 MPH. DIME SIZE HAIL WAS REPORTED
5 MILES NORTHWEST OF ST CLOUD AT 415 PM. THIS STORM WILL MOVE
THROUGH FOLEY...SAUK RAPIDS...CLEAR LAKE BY 530 PM.
 
 
IF OUTSIDE..FIND A STRONG BUILDING.  DO NOT SEEK SHELTER UNDER TREES.
STAY INDOORS AWAY FROM WINDOWS.  DO NOT USE ELECTRICAL APPLIANCES.
 
 
 
&
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 3:31 PM CDTSevere Thunderstorm WarningMPXPope, Stearns59 min
Jun 25, 4:50 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Swift40 min
Jun 25, 5:33 PM CDTSevere Thunderstorm WarningMPXKandiyohi57 min
Jun 25, 6:06 PM CDTSevere Thunderstorm WarningMPXMeeker54 min
Jun 25, 6:45 PM CDTSevere Thunderstorm WarningMPXMcLeod60 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.