Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 96, NWS Twin Cities, MN

July 5, 1991Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 1991, 11:28 PM CDT for Rusk County, Wisconsin. It was in force for 62 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 5, 1991, 11:28 PM CDT (04:28 UTC)
Expired
Jul 6, 1991, 12:30 AM CDT
In force
62 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Rusk County, WI

What was reported inside it

TimeReportWhereRemark
Jul 6, 12:00 AM CDTHail 0.75Rusk, WI
Jul 6, 12:15 AM CDTHail 0.75Rusk, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.5 hours before the alert went out and 263 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, Green Bay/Straub, WI at 00:00Z on 1991-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Green Bay/Straub, WI at 00:00Z on 1991-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
2 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
1669 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
113 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 
TTAA00 KMSP 060426
SVRMSP
WIC107-060530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1128 PM CDT FRI JUL 5 1991
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL 1230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...RUSK COUNTY
 
AT 1125 PM...RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHEAST WASHBURN
COUNTY...18 MILES NORTH OF RICE LAKE. THIS THUNDERSTORM WAS MOVING
SOUTHEAST AT 40 MILES AN HOUR. ON ITS PRESENT COURSE THIS THUNDERSTORM
WILL PASS THROUGH LADYSMITH AT 1205 AM.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE" HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 5, 7:42 PM CDT, 3 hours 46 minutes before
MNZ015-016-017-018-060145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS ST PAUL MN
740 PM CDT FRI JUL 5 1991

...STRONG THUNDERSTORMS ARE MOVING THROUGH SOUTHWEST AND CENTRAL MINNESOTA...

AT 730 PM...STRONG THUNDERSTORMS WITH THE POTENTIAL FOR PRODUCING HAIL AND
STRONG WINDS WERE LOCATED BETWEEN WILLMAR AND GRANITE FALLS IN CENTRAL
MINNESOTA AND BETWEEN MARSHALL AND SLAYTON IN SOUTHWEST MINNESOTA.
THESE STROMS ARE MOVING TO THE EAST AT 40 MPH...AND WILL BE MOVING THROUGH
REDWOOD...RENVILLE AND KANDIYOHI COUNTIES BETWEEN 745 AND 815 PM..

PEOPLE NEAR THE TOWNS OF...WALNUT GROVE AND LABERTON IN REDWOOD COUNTY AND
OLIVIA AND BIRD ISLAND IN RENVILLE COUNTY AND ATWATER IN KANDIYOHI COUNTY CAN
EXPECT VERY HEAVY RAIN...HAIL AND STRONG GUSTY WINDS.

THESE THUNDERSTORMS HAVE TO POTENTIAL TO BECOME SEVERE WILL LITTLE ADVANCE
WARNING AND IF YOU LIVE IN THESE AREAS YOU SHOULD BE ALERT FOR MORE STATEMENTS
OR POSSIBLE WARNINGS CONCERNING THESE STORMS THROUGH THE EVENING.
Special weather statement, Jul 5, 7:47 PM CDT, 3 hours 41 minutes before
MNZ011-012-060145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
747 PM CDT FRI JUL 5 1991

AT 745 PM CDT THIS FRIDAY EVENING A THUNDERSTORM WITH VERY HEAVY
RAIN...STRONG WINDS AND POSSIBLY SOME HAIL WAS LOCATED 10 MILES NORTH
OF BRAINERD MINNESOTA MOVING TO THE EAST AT 35 MPH. THIS THUNDERSTORM
HAS PRODUCED TORNADOS AS IT PASSED THROUGH THE BRAINERD AREA.

THIS THUNDERSTORM WILL PASS OVER MILLE LACS LAKE BETWEEN 8:00 AND 8:15
PM THIS FRIDAY EVENING. PERSONS AROUND OR ON MILLE LACS LAKE AND THE
NORTHERN HALF OF MILLE LACS COUNTY SHOULD BE PREPARED TO SEEK SHELTER
AS THIS IS A VERY LARGE AND DANGEROUS THUNDERSTORM.

NNNN
Special weather statement, Jul 5, 8:10 PM CDT, 3 hours 18 minutes before
MNZ011-012-060215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
810 PM CDT FRI JUL 5 1991

BETWEEN 7 40 AND 8 00 PM CDT A THUNDERSTORM PRODUCED TORNADOES IN THE
GULL LAKE AREA NORTHWEST AND NORTH OF BRAINERD MINNESOTA.

AT 8 10 PM CDT THIS SAME THUNDERSTORM WAS APPROACHING THE NORTHWEST
SHORE OF MILLE LACS LAKE AND WAS MOVING EAST AT ABOUT 30 MPH. THE
THUNDERSTORM REMAINS VERY DANGEROUS.

ALL BOATERS SHOULD GET OFF MILLE LACS LAKE IMMEDIATELY...THERE IS NO
TIME TO WASTE...GET OFF THE LAKE. THIS THUNDERSTORM WILL MOVE OVER THE
LAKE BETWEEN 8 15 AND 8 45 PM CDT.

PEOPLE IN NORTHERN MILLE LACS COUNTY SHOULD BE READY TO TAKE SHELTER
IMMEDIATELY. THIS THUNDERSTORM WILL MOVE OVER NORTHERN MILLE LACS
COUNTY BETWEEN 8 15 AND 8 30 PM CDT.

NNNN
Special weather statement, Jul 5, 8:48 PM CDT, 2 hours 40 minutes before
MNZ015-016-017-018-060145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS ST PAUL MN
845 PM CDT FRI JUL 5 1991

...THUNDERSTORMS WERE WEAKENGING OVER SOUTH CENTRAL MINNESOTA...
AT 835 PM...THUNDERSTORMS LOCATED OVER SOUTH CENTRAL MINNESOTA WERE LOOSING
STRENGTH AS THEY MOVED EASTWARD. AT 8 PM THESE STORMS DID DROP SOME PEA TO
MARBLE SIZED HAIL IN CENTRAL RENVILLE COUNTY NEAR THE TOWN OF DANUBE...AFTER
THAT THEY ONLY BECAME WEAKER. THESE THUNDERSTORMS WERE LOCATED FROM HECTOR AND
FAIRFAX SOUTH TO...WALNUT GROVE AND WINDOM.

MOVEMENT WAS TO THE EAST AT 40 MPH...AND THE STRONGEST STORMS WHICH WERE
LOCATED AROUND WALNUT GROVE COULD PRODUCE HAIL...INTENSE RAINFALL AND GUSTY
WINDS UP TO 50 MPH...AS THEY MOVE THROUGH LAMBERTON...WABASSO AND SPRINGFIELD
IN SOUTHERN REDWOOD AND WESTERN BROWN COUNTIES OF SOUTH CENTRAL MINNESOTA.

CONDITIONS ARE STILL FAVORABLE FOR SEVERE WEATHER AND A TORNADO WATCH IS STILL
IN EFFECT FOR MUCH O.F CENTRAL AND SOUTH CENTRAL MINNESOTA UNTIL 1 AM SATURDAY
MORNING.
Special weather statement, Jul 5, 9:44 PM CDT, 1 hour 44 minutes before
MNZ015-016-017-018-060345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS ST PAUL MN
945 PM CDT FRI JUL 5 1991

SHOWERS AND THUNDERSTORMS CONTINUED ACROSS SOUTH CENTRAL MINNESOTA.

AT 930 PM...THE STRONGEST THUNDERSTORMS WERE LOCATED FROM LE SEUER TO
ST PETER. THESE THUNDERSTORMS WILL LIKELY PRODUCE HEAVY RAINS AND FREQUENT
LIGHTNING STRIKES.

THE THUNDERSTORMS WERE PART OF A LARGER AREA OF SHOWERS AND THUNDERSTORMS
THAT EXTENDED FROM JUST SOUTH OF REDWOOD FALLS NEAR WABASSO TO AROUND
NEW PRAQUE AND MAPLETON.

MOVEMENT WAS TO THE EAST AT 40 MILES AN HOUR.

CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER. A TORNADO WATCH IS EFFECT
FOR MUCH OF CENTRAL AND SOUTH CENTRAL MINNESOTA UNTIL 1 AM SATURDAY
MORNING.
Special weather statement, Jul 5, 10:50 PM CDT, 38 minutes before
MNZ015-016-017-018-060345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS ST PAUL MN
1045 PM CDT FRI JUL 5 1991

AT 1030 PM...A LARGE THUNDERSTORM WAS MOVING SOUTH SOUTHEAST
THROUGH CENTRAL MINNESOTA AND HAS NOW MOVED INTO NORTHWEST
WISCONSIN NEAR GRANTSBURG AND SIREN.  THIS THUNDERSTORM HAS A
HISTORY OF FUNNEL CLOUDS...VERY HEAVY RAIN AND LARGE HAIL.  ALTHOUGH
THEIR HAS BEEN ONLY HEAVY RAIN REPORTED SINCE ABOUT 10 15 PM...IT
STILL HAS THE POTENTIAL FOR FUNNEL CLOUDS AND HAIL AS WELL AS VERY HEAVY
RAIN.  THIS THUNDERSTORM SHOULD NOT BE TAKEN LIGHTLY IF THREATENING
WEATHER APPROCHES TAKE COVER IMMEDIATELY.

MOVEMENT WAS EAST 40 MILES AN HOUR.

IN SOUTH CENTRAL MINNESOTA AN AREA OF THUNDERSHOWERS CONTINUES NEAR MADELIA.
SOUTHWEST OF MANKATO.
CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER.  A SEVERE THUNDERSTORM IS
FOR MUCH OF EAST CENTRAL AND SOUTH CENTRAL MINNESOTA UNTIL 2 AM SATURDAY
MORNING.

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.