Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 58, NWS Twin Cities, MN

June 14, 1994Isanti County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 14, 1994, 9:33 PM CDT for Isanti County, Minnesota. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1994, 9:33 PM CDT (02:33 UTC)
Expired
Jun 14, 1994, 10:08 PM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Isanti County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 2.6 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 00:00Z on 1994-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4090 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 1994-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
4090 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1595 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.9
Supercell composite
13.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 150234
SVRMSP
MNC059-150315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
933 PM CDT TUE JUN 14 1994
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL 1015 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MINNESOTA
 
   ...ISANTI COUNTY
 
AT 932 PM...RADAR INICATES A SEVERE THUNDERSTORM IN WEST ISANTI COUNTY
NEAR DALBO MINNESOTA ABOUT 45 MILES NORTH OF THE TWIN CITIES. THIS STORM
IS MOVING NORTHEAST AT 30 MPH WHICH WOULD CARRY IT TO ELM
PARK...STANCHFIELD AND BRAHAM BY 10 PM CDT.
 
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.
 
WET/DRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:30 PM CDTSevere Thunderstorm WarningMPXMeeker45 min
Jun 14, 8:54 PM CDTSevere Thunderstorm WarningMPXWright51 min
Jun 14, 8:56 PM CDTSevere Thunderstorm WarningMPXSherburne49 min
Jun 14, 9:04 PM CDTSevere Thunderstorm WarningMPXChippewa, Yellow Medicine56 min
Jun 14, 9:26 PM CDTSevere Thunderstorm WarningMPXMille Lacs34 min
Jun 14, 9:48 PM CDTSevere Thunderstorm WarningMPXSwift57 min
Jun 14, 9:54 PM CDTSevere Thunderstorm WarningMPXRenville51 min
Jun 14, 11:19 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Stearns56 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.