Alert archive / Minnesota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 78, NWS Twin Cities, MN

September 14, 1992Martin County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 14, 1992, 4:18 AM CDT for Martin County, Watonwan County, Minnesota. It was in force for 42 min. 1 report 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
Sep 14, 1992, 4:18 AM CDT (09:18 UTC)
Expired
Sep 14, 1992, 5:00 AM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Martin County, MN, Watonwan County, MN

What was reported inside it

TimeReportWhereRemark
Sep 14, 4:55 AM CDTHail 1.75Martin, MN

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

Minneapolis, MN (KSTC), launched 00:00Z, 9.3 hours before the alert went out and 138 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 1992-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1992-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1497 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
123 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 KRST 140920
SVRRST
MNC091-165-141000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
418 AM CDT MON SEP 14 1992
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  500 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MINNESOTA
 
   ...MARTIN COUNTY...WATONWAN COUNTY
 
THIS WARNING INCLUDES THE TOWNS OF SHERBURN...WELCOME...
FAIRMONT...MT. LAKE...AND ST. JAMES.
 
AT 415AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES
WEST OF FAIRMONT NEAR JACKSON MINNESOTA.  THE STORM WAS
MOVING EAST AT 30 MPH.
 
BY 430 AM CDT THE SEVERE THUNDERSTORM WILL BE NEAR SHERBURN AND
MT. LAKE.
 
BY 445 AM CDT THE SEVERE THUNDERSTORM WILL BE NEAR FAIRMONT AND
ST. JAMES.
 
 
WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING
DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES OR ELECTRICAL
APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS
CAN AND OCCASIONALLY DO PRODUCE TORNADOS WITH LITTLE OR NO WARNING.

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, Sep 13, 10:42 PM CDT, 5 hours 36 minutes before
MNZALL-WIZ006-140445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1041 PM CDT SUN SEP 13 1992

...STRONG THUNDERSTORMS OVER SOUTHEAST MINNESOTA AND WEST CENTRAL
WISCONSIN...

STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST MINNESOTA AND WEST CENTRAL
WISCONSIN AT 1030 PM.  THEY WERE MAINLY LOCATED FROM ALBERT LEA IN
SOUTH CENTRAL MINNESOTA THROUGH ROCHESTER TO FAIRCHILD WISCONSIN...ABOUT
30 MILES SOUTHEAST OF THE CITY OF EAU CLAIRE.  MARBLE SIZE HAIL...
FREQUENT LIGHTNING...AND VERY HEAVY RAINFALL WAS REPORTED WITH THESE
STORMS AS THEY MOVED THROUGH THE CITY OF FAIRCHILD AT ABOUT 1025 PM.
STRONG GUSTY WINDS ARE ALSO A POSSIBILITY WITH SOME OF THESE
THUNDERSTORMS.

THEY WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.  PERSONS IN THE
TOWNS OF ST CHARLES...PLAINVIEW...AND ALTURA MINNESOTA...AS WELL AS
GREENWOOD WISCONSIN MAY EXPECT THESE STORMS BY ABOUT 1100 PM.

PERSONS ENGAGED IN OUTDOOR ACTIVITIES SUCH ASj CAMPING...FISHING...
OR HIKING SHOULD BE READY TO SEEK SAFE SHELTER IF NEEDED.
KRAFT
Special weather statement, Sep 13, 11:49 PM CDT, 4 hours 29 minutes before
MNZALL-WIZ006-140545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1145 PM CDT SUN SEP 13 1992

...VERY HEAVY RAINS AND HAIL OVER SOUTHEAST MINNESOTA AND WEST CENTRAL
WISCONSIN...

STRONG THUNDERSTORMS WERE MOVING ACROSS PARTS OF SOUTHEAST MINNESOTA AND
WEST CENTRAL WISCONSIN AT 1135 PM CDT. VERY HEAVY RAINS AND AND PEA TO MARBLE
SIZE HAIL WERE REPORTED IN THE ROCHESTER AREA OF SOUTHEAST MINNESOTA AND IN
WEST CENTRAL WISCONSIN  30 MILES SOUTH OF EAU CLAIRE NEAR FOSTER ABOUT 1130PM.
THE STORMS WERE PART OF A BAND OF THUNDERSTORMS THAT EXTENDED FROM SOUTHEAST
MINNESOTA NEAR ALBERT LEA INTO WESTERN WISCONSIN NEAR MEDFORD.

THEY WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.  PERSONS IN THE
TOWNS OF PLAINVIEW...AND ALTURA MINNESOTA...AS WELL AS OSSEO AND FAIRCHILD
IN WEST CENTRAL WISCONSIN CAN EXPECT THESE STORMS BETWEEN MIDNIGHT AND 1AM.

VERY HEAVY RAINS...FREQUENT DEADLY LIGHTNING STRIKES ALONG WITH SOME HAIL
CAN BE EXPECTED WITH THE STRONGER THUNDERSTORMS. ALSO THE VERY HEAVY RAINS
MAY ALSO CAUSE SOME LOCALIZED STREET OR LOW LYING AREAS TO BE FLOODED.

IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER INDOORS...DO NOT DRIVE
ACROSS FLOODED ROADWAYS AND MONITOR LOCAL RADIO OR NWS RADIO STATIONS FOR
UPDATED INFORMATION.
 SES
Special weather statement, Sep 14, 12:56 AM CDT, 3 hours 22 minutes before
MNZALL-WIZ006-140545-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1250 AM CDT MON SEP 14 1992

...VERY HEAVY RAINS AND HAIL PERSIST OVER SOUTHEAST AND SOUTH CENTRAL
   MINNESOTA INTO WEST WISCONSIN...

STRONG THUNDERSTORMS CONTINUED MOVING TO THE NORTHEAST AT ABOUT 30 MILES AN
HOUR OVER SOUTH CENTRAL AND SOUTHEAST MINNESOTA INTO WEST WISCONSIN. POLICE
IN DUNN COUNTY WISCONSIN ABOUT 50 MILES EAST OF THE TWIN CITIES REPORTED NEAR
ZERO VISIBILITIES IN HEAVY RAIN AND PEA SIZE HAIL AT 1230. OTHER STRONG THUNDER-STORMS WERE SCATTERED FROM SOUTH CENTRAL MINNESOTA NORTHEAST INTO WISCONSIN. THESTRONGEST STORMS WERE LOCATED NEAR FAIRMONT..CLARKS GROVE AND ALTURA MINNESOTA.
STRONG THUNDERSTORMS WERE ALSO NEAR BLACK RIVER FALLS WISCONSIN.

PERSONS LIVING IN THE COMMUNITIES OF WELL AND BLOOMING PRAIRIE MINNESOTA AND
NEILSVILLE WISCONSIN CAN EXPECT STRONG THUNDERSTORMS WITH TORRENTIAL RAINS AND
HAIL BETWEEN 1 AND 2 AM.

VERY HEAVY RAINS...FREQUENT DEADLY LIGHTNING STRIKES ALONG WITH GUSTY WINDS
CAN BE EXPECTED WITH THE STRONGER THUNDERSTORMS. THE VERY HEAVY RAINS
ASSOCIATED WITH THESE STRONG THUNDERSTORMS ARE CAPABLE OF PRODUCING STREET
AND UNDERPASS FLOODING.  RAINFALL TOTALS OVER PARTS OF SOUTHEAST MINNESOTA
ARE ESTIMATED TO BE IN EXCESS OF 1 1/2 INCHES SINCE ABOUT 9 PM.

IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER INDOORS...DO NOT DRIVE
ACROSS FLOODED ROADWAYS AND MONITOR LOCAL RADIO OR NWS RADIO STATIONS FOR
UPDATED INFORMATION.
LRS
Special weather statement, Sep 14, 1:57 AM CDT, 2 hours 21 minutes before
MNZALL-WIZ006-140545-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
150 AM CDT MON SEP 14 1992

...FLASH FLOOD WATCH FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST MINNESOTA...

...STRONG THUNDERSTORMS WITH VERY HEAVY RAINS CONTINUE OVER SOUTH CENTRAL
   AND SOUTHEAST MINNESOTA INTO WEST CENTRAL WISCONSIN...

AT 133 AM STRONG THUNDERSTORMS COVERED MOST OF SOUTH CENTRAL AND SOUTHEAST
MINNESOTA AS WELL A WEST CENTRAL WISCONSIN. THE AREA WAS GENERALLY SOUTH OF A
LINE FROM JACKSON IN SOUTHWEST MINNESOTA NORTHEAST INTO WISCONSIN NEAR HAYWARD.

STRONG THUNDERSTORMS WITH VERY HEAVY RAIN AND OCCASIONAL HAIL WERE LOCATED
IN THIS LARGE BAND NEAR BLOOMING PRAIRIE MINNESOTA AND JUST SOUTH OF BLACK RIVERFALLS WISCONSIN. THESE STRONG THUNDERSTORMS HAVE BEEN PRODUCING RAINS IN
EXCESS OF 1 INCH AN HOUR FOR THE PAST COUPLE OF HOURS. IN ADDITION TO HEAVY
RAINS THE THUNDERSTORMS WERE ALSO PRODUCING OCCASIONAL SMALL HAIL..GUSTY WINDS
AND FREQUENT LIGHTNING.
>
THE COMMUNITIES OF KASSON AND WEST CONCORD MINNESOTA AND BLACK RIVER FALLS
CAN EXPECT STRONG THUNDERSTORMS BEFORE 3 AM.

THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT ABOUT 30 MILES
AN HOUR. FLOODING IS A DEFINITE THREAT IN SOUTHEAST MINNESOTA AS SHOWERS AND
THUNDERSTORMS HAVE BEEN FOLLOWING THE SAME TRACK ACROSS THE SOUTHEAST CORNER
OF MINNESOTA AND WEST WISCONSIN FOR THE PAST FEW HOURS.

IF THREATENING WEATHER APPROACHES SEEK SAFE SHELTER INDOORS...DO NZOT DRIVE
ACROSS FLOODED ROADWAYS AND MONITOR LOCAL RADIO OR NWS RADIO STATIONS FOR
UPDATED INFORMATION.
LRS
Special weather statement, Sep 14, 2:56 AM CDT, 1 hour 22 minutes before
MNZALL-WIZ006-140545-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
250 AM CDT MON SEP 14 1992

...FLASH FLOOD WATCH FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST MINNESOTA...

AT 234 AM..A AREA OF STRONG THUNDERSTORMS PRESISTED OVER THE SOUTHEAST CORNER
OF MINNESOTA INTO WESTERN AND CENTRAL WISCONSIN. THE AREA WAS SOUTH AND EAST
OF A LINE FROM LAKE CRYSTAL MINNESOTA NORTHEAST INTO WISCONSIN NEAR PHILLIPS.

STRONGEST THUNDERSTORMS WITH VERY HEAVY RAINS WERE LOCTED JUST NORTH OF THE
ROCHESTER AREA. IN WISCONSIN THE STRONGEST STORMS WERE EAST OF THE EAU CLAIRE
AREA NEAR ABBOTSFORD. THESE STRONG THUNDERSTORMS HAVE BEEN PRODUCING RAINS IN
EXCESS OF 1 INCH AN HOUR FOR THE PAST SEVERAL HOURS. IN ADDITION TO HEAVY
RAINS THE THUNDERSTORMS WERE ALSO PRODUCING..GUSTY WINDS AND FREQUENT
LIGHTNING.

MOVEMENT WAS TO THE NORTHEAST AT ABOUT 35 MILES AN HOUR.
>
LITTLE CHANGE IN MAXIMUM INTENSITY WAS NOTED SINCE 133 AM HOWEVER..OVERALL
INTENSITIES HAVE DECREASED.

FLOODING IS A DEFINITE THREAT IN SOUTHEAST MINNESOTA AS SHOWERS AND THUNDER-
STORMS HAVE BEEN FOLLOWING THE SAME TRACK ACROSS THE SOUTHEAST CORNER OF
MINNESOTA INTO WEST WISCONSIN FOR THE PAST FEW HOURS.
LRS
Special weather statement, Sep 14, 3:54 AM CDT, 24 minutes before
RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
250 AM CDT MON SEP 14 1992

...FLASH FLOOD WATCH FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST MINNESOTA...

AT 333 AM..A AREA OF STRONG THUNDERSTORMS THAT HAS PERSISTED OVER SOUTHEAST
MINNESOTA FOR SEVERAL HOURS WAS BEGINNING TO WEAKEN AND MOVE OUT OF THE STATE.
THE MAIN PART OF THE AREA WAS LOCARED TO THE LEFT OF A LINE FROM RHINELANDER
TO EAU CLAIRE TO KENYON AND LYLE MINNESOTA.  SHOWERS AND THUNDERSTORMS WERE
OVER SOUTHWEST MINNESOTA AND OVER A SMALL PART OF SOUTH CENTRAL MINNESOTA.
THE STRONGEST STORMS WERE NEAR WINONA MINNESOTA AND BLAIR WISCONSIN.

ISOLATED STRONG THUNDERSTORMS WERE ALSO OCCURRING IN SOUTH CENTRAL MINNESOTA
NEAR MAPLETON MINNESOTA.

MOVEMENT WAS TO THE NORTHEAST AT ABOUT 35 MILES AN HOUR.
>
FLOODING IS A DEFINITE THREAT IN SOUTHEAST MINNESOTA AS SHOWERS AND THUNDER-
STORMS HAVE BEEN FOLLOWING THE SAME TRACK ACROSS THE SOUTHEAST CORNER OF
MINNESOTA INTO WEST WISCONSIN FOR THE PAST FEW HOURS.
LRS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 5:08 AM CDTSevere Thunderstorm WarningMPXFaribault52 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1992Every severe thunderstorm warning in 1992

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.