Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 99, NWS Twin Cities, MN

July 5, 1994Kandiyohi County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 1994, 1:07 AM CDT for Kandiyohi County, Minnesota. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1994, 1:07 AM CDT (06:07 UTC)
Expired
Jul 5, 1994, 2:00 AM CDT
In force
53 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Kandiyohi County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 6.1 hours before the alert went out and 115 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 050607 RRA
SVRSTC
MNC067-050700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
107 AM CDT TUE JUL 5 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MINNESOTA
 
   ...KANDIYOHI COUNTY
 
INCLUDING THE CITIES OF WILLMAR...NEW LONDON...SPICER AND ATWATER.
 
AT 100 AM RADAR SHOWED A SEVERE THUNDERSTORM LOCATED 15 MILES NORTHWEST
OF WILLMAR MOVING SOUTHEAST AT 20 MPH. THIS STORM HAS BEEN PRODUCING
LARGE HAIL WITH THE LATEST REPORT AT 1250 AM OF 1 INCH HAIL AT SUNBURG
WHICH IS 20 MILES NORTHWEST OF WILLMAR.
 
THIS SEVERE STORM WILL AFFECT THE CITIES OF NEW LONDON AND SPICER BY
115 AM AND INTO WILLMAR AND ATWATER BY 130 AM.
 
 
 
 
 
IF YOU OUTSIDE IN THE OPEN...YOU SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
DO NOT USE ELECTRICAL APPLIANCES OR THE TELEPHONE UNLESS IT IS
AN EMERGENCY.
 
 
 
&
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 4, 11:22 PM CDT, 1 hour 45 minutes before
MNZ048-049-055-057-050600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1122 PM CDT MON JUL 4 1994

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR POPE COUNTY...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POPE COUNTY UNTIL
1145 PM. AT 1115 PM...WEATHER RADAR INDICATED A THUNDERSTORM JUST
NORTHWEST OF LAKE MINNEWASKA...15 MILES NORTHWEST FROM GLENWOOD.
A STRONGER THUNDERSTORM WAS LOCATED FURTHER WEST NEAR THE NORTHWEST
CORNER OF POPE COUNTY.

NO DAMAGING WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE
SINCE 10 PM. LIGHTNING HAS BEEN INTENSE HOWEVER AND DOWNPOURS HAVE
ACCOMPANED THESE STORMS.

THE THUNDERSTORMS HAVE BEEN MOVING TO THE SOUTHEAST AT 25 MPH TOWARD
THE TOWNS OF GLENWOOD AND STARBUCK. IF THESE STORMS HOLD TOGETHER THEY
MAY REACH PORTIONS OF SWIFT...WESTERN STEARNS AND NORTHWEST KANDIYOHI

COUNTIES AFTER MIDNIGHT.
Special weather statement, Jul 4, 11:23 PM CDT, 1 hour 44 minutes before
MNZ048-049-055-057-050600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1122 PM CDT MON JUL 4 1994

...SEVERE THUNDERSTORM WARNING IN EFFECT FOR POPE COUNTY...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR POPE COUNTY UNTIL
1145 PM. AT 1115 PM...WEATHER RADAR INDICATED A THUNDERSTORM JUST
NORTHWEST OF LAKE MINNEWASKA...15 MILES NORTHWEST FROM GLENWOOD.
A STRONGER THUNDERSTORM WAS LOCATED FURTHER WEST NEAR THE NORTHWEST
CORNER OF POPE COUNTY.

NO DAMAGING WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE
SINCE 10 PM. LIGHTNING HAS BEEN INTENSE HOWEVER AND DOWNPOURS HAVE
ACCOMPANED THESE STORMS.

THE THUNDERSTORMS HAVE BEEN MOVING TO THE SOUTHEAST AT 25 TMPH TOWARD
THE TOWNS OF GLENWOOD AND STARBUCK. IF THESE STORMS HOLD TOGETHER THEY
MAY REACH PORTIONS OF SWIFT...WESTERN STEARNS AND NORTHWEST KANDIYOHI

COUNTIES AFTER MIDNIGHT.
Local storm report, Jul 4, 11:25 PM CDT, 1 hour 42 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
1125 PM CDT MON JUL 04 1994

PRELIMINARY REPORT FOR 4 JUL 94

1120 PM     QUARTER SIZE ( 1 INCH) HAIL AT CYRUS MINNESOTA IN POPE
            COUNTY...25 MILES SOUTHWEST ALEXANDRIA.

1152 PM     HALF DOLLAR SIZE (11/4) HAIL AT STARBUCK IN POPE COUNTY
            ...20 MILES SOUTHWEST ALEXANDRIA.

1247 PM     1 INCH HAIL IN SUNBERG OF KANDIYOHI COUNTY...20 MILES
            NORTHWEST OF WILLMAR.

137  AM     3/4 INCH HAIL NEAR AVON, PEA SIZE HAIL IN PAYNESVILLE AND
            COLD SPRING...ALL IN STEARNS COUNTY ABOUT 10 TO 20 MILES
            WEST OF ST CLOUD.

FRASER

:A
Local storm report, Jul 4, 11:31 PM CDT, 1 hour 36 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
1125 PM CDT MON JUL 04 1994

PRELIMINARY REPORT FOR 4 JUL 94

1120 PM     QUARTER SIZE ( 1 INCH) HAIL AT CYRUS MINNESOTA IN POPE
            COUNTfY...25 MILES SOUTHWEST ALEXANDRIA.

FRASER

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, 1:30 AM CDTSevere Thunderstorm WarningMPXStearns60 min
Jul 5, 2:00 AM CDTSevere Thunderstorm WarningMPXSherburne60 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.