Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 130, NWS Twin Cities, MN

July 7, 1994Sherburne County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 7, 1994, 5:08 PM CDT for Sherburne County, Minnesota. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1994, 5:08 PM CDT (22:08 UTC)
Expired
Jul 7, 1994, 6:00 PM CDT
In force
52 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Sherburne County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 10.1 hours before the alert went out and 349 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, International Fa, MN at 12:00Z on 1994-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, International Fa, MN at 12:00Z on 1994-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1017 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KSTC 072208 RRA
SVRSTC
MNC141-072300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
508 PM CDT THU JUL 7 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MINNESOTA
 
   ...SHERBURNE COUNTY
 
AT 5 PM RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM ST
CLOUD TO MONTICELLO MOVING NORTHEAST AT 15 MPH.
 
PERSONS IN THE CITIES OF BECKER, BIG LAKE, CLEAR LAKE SANTIAGO AND IN
THE VICINITY OF THE ST CLOUD AIRPORT SHOULD SEEK SHELTER IMMEDIATELY.
 
TORNADOES MAY OCCURE WITH LITTLE OR NO WARNING FROM THESE DANGEROUS
STORMS.
 
 
IF OUTSIDE..FIND A STRONG BUILDING.  DO NOT SEEK SHELTER UNDER TREES.
STAY INDOORS AWAY FROM WINDOWS.  DO NOT USE ELECTRICAL APPLIANCES.
 
 
FRASER
NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 7, 3:23 PM CDT, 1 hour 45 minutes before
MNC019-085-143-072130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
323 PM CDT THU JUL 7 1994

....STRONG THUNDERSTORMS DEVELOPING IN PORTIONS OF CENTRAL MINNESOTA...

AT 315 PM RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN SIBLEY AND
MCLEOD COUNTY NEAR THE TOWN OF SUMTER AND ABOUT 10 MILES SOUTH OF
GAYLORD. THESE STORMS ARE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR
AND SHOULD BE IN THE VICINITY OF GLENCOE AND LE SUEUR BY 345 PM.

IF YOU SEE STORMS APPROACHING YOUR AREA TAKE COVER. THESE STORMS ARE
CAPABLE OF PRODUCING HEAVY RAINS...LARGE HAIL...AND GUSTY WINDS.

MJM
&
Special weather statement, Jul 7, 3:24 PM CDT, 1 hour 44 minutes before
MNC019-085-143-072130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
323 PM CDT THU JUL 7 1994

....STRONG THUNDERSTORMS DEVELOPING IN PORTIONS OF CENTRAL MINNESOTA...

AT 315 PM RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN SIBLEY AND
MCLEOD COUNTY NEAR THE TOWN OF SUMTER AND ABOUT 10 MILES SOUTH OF
GAYLORD. THESE STORMS ARE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR
AND SHOULD BE IN THE VICINITY OF GLENCOE AND LE SUE`UR BY 345 PM.

IF YOU SEE STORMS APPROACHING YOUR AREA TAKE COVER. THESE STORMS ARE
CAPABLE OF PRODUCING HEAVY RAINS...LARGE HAIL...AND GUSTY WINDS.

MJM
&
Local storm report, Jul 7, 3:40 PM CDT, 1 hour 28 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
340 PM CDT THU JUL 07 1994

PRELIMINARY REPORT FOR 7 JUL 94

310  PM     FUNNEL CLOUD REPORTED 6 MILES SOUTH OF ATWATER MN...12
            MILES SOUTHEAST OF WILLMAR MN. FUNNEL CONFIRMED BY
            SKYWARN TRAINED SHERIFF DEPARTMENT OFFICER. FUNNEL
            VISIBLE FROM 310-330 PM THEN RECEDED INTO CLOUD BASE.

MCBEATH PETERS
Local storm report, Jul 7, 3:41 PM CDT, 1 hour 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
340 PM CDT THU JUL 07 1994

PRELIMINARY REPORT FOR 7 JUL 94

310  PM     FUNNEL CLOUD REPORTED 6 MILES SOUTH OF ATWATER MN...12
            MILES SOUTHEAST OF WILLMAR MN. FUNNEL CONFIRMED BY
            SKYWARN TRAINED SHERIFF DEPARTMENT OFFICER. FUNNEL
            VISIBLE FROM 310-330 PM THEN RECEDED INTO CLOUD BASE.

MCBEATH PETERS
Special weather statement, Jul 7, 4:28 PM CDT, 40 minutes before
MNZ042>044-046-048>051-054>058-064-072230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
430 PM CDT THU JUL 7 1994

...TORNADO WATCH FOR CENTRAL AND EASTERN MINNESOTA UNTIL 9 PM...

AT 430 PM A LINE OF THUNDERSTORMS WAS LOCATED FROM WADENA TO
ST CLOUD TO THE WESTERN SUBURBS OF THE TWIN CITIES. THESE STORMS
WERE MOVING TO THE NORTHEAST AT 15 MPH.

AT 415 PM STEARNS COUNTY SHERIFF REPORTED ZERO VISBILITY IN VERY
HEAVY RAIN NEAR MEIRE GROVE AND GREENWALD...WHICH IS 30 MILES
WEST OF ST CLOUD.

PERSONS IN ST CLOUD CAN EXPECT THESE STORMS BY 6 PM.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...SMALL HAIL...
GUSTY WINDS...FREQUENT LIGHTNING STRIKES...AND POSSIBLE FUNNEL
CLOUDS. IF YOU ARE IN THE PATH OF THESE STORMS...TAKE SHELTER
AND BE PREPARED FOR POSSIBLE SEVERE WEATHER CONDITIONS. DO NOT
STAY OUTDOORS AND DO NOT USE ELECTRICAL APPLIANCES.

PARKIN
Special weather statement, Jul 7, 4:32 PM CDT, 36 minutes before
MNZ042>044-046-048>051-054>058-064-072230-

SPECIAL WEATHER STATEMENT...CORRECTED FOR TIME
NATIONAL WEATHER SERVICE ST CLOUD MN
430 PM CDT THU JUL 7 1994

...TORNADO WATCH FOR CENTRAL AND EASTERN MINNESOTA UNTIL 9 PM...

AT 430 PM A LINE OF THUNDERSTORMS WAS LOCATED FROM WADENA TO
ST CLOUD TO THE WESTERN SUBURBS OF THE TWIN CITIES. THESE STORMS
WERE MOVING TO THE NORTHEAST AT 15 MPH.

AT 415 PM STEARNS COUNTY SHERIFF REPORTED ZERO VISBILITY IN VERY
HEAVY RAIN NEAR MEIRE GROVE AND GREENWALD...WHICH IS 30 MILES
WEST OF ST CLOUD.

PERSONS IN ST CLOUD CAN EXPECT THESE STORMS BY 5 PM.

THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...SMALL HAIL...
GUSTY WINDS...FREQUENT LIGHTNING STRIKE>S...AND POSSIBLE FUNNEL
CLOUDS. IF YOU ARE IN THE PATH OF THESE STORMS...TAKE SHELTER
AND BE PREPARED FOR POSSIBLE SEVERE WEATHER CONDITIONS. DO NOT
STAY OUTDOORS AND DO NOT USE ELECTRICAL APPLIANCES.

PARKIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:09 PM CDTTornado WarningMPXWabasha, Winona36 min
Jul 7, 3:20 PM CDTTornado WarningMPXKandiyohi, Meeker25 min
Jul 7, 3:31 PM CDTSevere Thunderstorm WarningMPXMcLeod44 min
Jul 7, 3:41 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet34 min
Jul 7, 3:59 PM CDTSevere Thunderstorm WarningMPXSibley61 min
Jul 7, 4:14 PM CDTSevere Thunderstorm WarningMPXCarver, Scott61 min
Jul 7, 4:14 PM CDTSevere Thunderstorm WarningMPXMcLeod61 min
Jul 7, 4:20 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet40 min
Jul 7, 4:29 PM CDTTornado WarningMPXCarver, Scott, Sibley46 min
Jul 7, 4:50 PM CDTTornado WarningMPXCarver25 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.