Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 101, NWS Twin Cities, MN

July 5, 1994Sherburne County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 1994, 2:00 AM CDT for Sherburne County, Minnesota. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1994, 2:00 AM CDT (07:00 UTC)
Expired
Jul 5, 1994, 3:00 AM CDT
In force
60 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Sherburne County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 7.0 hours before the alert went out and 67 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 1994-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1005 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 1994-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
1005 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSTC 050700 RRA
SVRSTC
MNC141-050800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
200 AM CDT TUE JUL 5 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MINNESOTA
 
   ...WESTERN SHERBURNE COUNTY
 
INCLUDING THE CITIES OF CLEAR LAKE...SANTIAGO AND BRIGGS LAKE.
 
AT 155 AM RADAR SHOWED A SEVERE THUNDERSTORM LOCATED 5 MILES SOUTHWEST
OF ST CLOUD MOVING SOUTHEAST AT 20 MPH. AT 135 AM 3/4 INCH HAIL WAS
REPORTED AT AVON ABOUT 15 MILES WEST OF ST CLOUD. THIS STORM WILL
MOVE THROUGH CLEAR LAKE AND SANTIAGO BETWEEN 230 AND 300 AM.
 
 
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  DO NOT USE THE TELEPHONE UNLESS IT IS
AN EMERGENCY.
 
 
 
&
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 10:50 PM CDTSevere Thunderstorm WarningMPXPope55 min
Jul 4, 11:46 PM CDTSevere Thunderstorm WarningMPXPope59 min
Jul 5, 12:22 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Swift38 min
Jul 5, 1:07 AM CDTSevere Thunderstorm WarningMPXKandiyohi53 min
Jul 5, 1:30 AM CDTSevere Thunderstorm WarningMPXStearns60 min
Jul 5, 2:37 AM CDTSevere Thunderstorm WarningMPXMartin, Watonwan53 min
Jul 5, 3:08 AM CDTSevere Thunderstorm WarningMPXBrown, Nicollet37 min
Jul 5, 3:54 AM CDTSevere Thunderstorm WarningMPXSibley34 min
Jul 5, 4:12 AM CDTSevere Thunderstorm WarningMPXCarver, McLeod63 min
Jul 5, 4:15 AM CDTSevere Thunderstorm WarningMPXScott55 min
Jul 5, 4:38 AM CDTSevere Thunderstorm WarningMPXChisago, Washington52 min
Jul 5, 4:46 AM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey44 min
Jul 5, 4:46 AM CDTSevere Thunderstorm WarningMPXWright44 min
Jul 5, 4:58 AM CDTSevere Thunderstorm WarningMPXAnoka62 min
Jul 5, 5:15 AM CDTSevere Thunderstorm WarningMPXChisago, Isanti47 min
Jul 5, 5:15 AM CDTSevere Thunderstorm WarningMPXWashington47 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.