Alert archive / Minnesota / Tornado Warnings in 1993

Tornado Warning 8, NWS Sioux Falls, SD

June 7, 1993Rock County, Minnesota

NWS Sioux Falls, SD issued this tornado warning at Jun 7, 1993, 5:59 PM CDT for Rock County, Minnesota. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1993, 5:59 PM CDT (22:59 UTC)
Expired
Jun 7, 1993, 6:35 PM CDT
In force
36 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Rock County, MN

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 11.0 hours before the alert went out and 219 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, Aberdeen, SD at 12:00Z on 1993-06-07Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 1993-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 372 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
372 m²/s²
0-3 km storm-relative helicity
509 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSD 072300
TORFSD
MNC133-072345-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
559 PM CDT MON JUN 7 1993
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST MINNESOTA
 
   ...ROCK COUNTY
 
AT 555 PM CDT LAW ENFORCEMENT OFFICIALS REPORTED A TORNADO JUST 1 MILE
WEST OF LUVERNE...OR ABOUT 25 MILES SOUTH OF PIPESTONE. THE STORM
PRODUCING THIS TORNADO WAS MOVING NORTHEAST AT 30 MILES AN HOUR.
LUVERNE...KENNETH...AMD HARDWICK ARE IN THE PATH OF THIS STORM.
 
A TORNADO WATCH IS IN EFFECT FOR PARTS OF SOUTHEAST SOUTH DAKOTA...
NORTHWEST IOWA AND SOUTHWEST MINNESOTA.
 
IF YOU LIVE IN A HOME OR APARTMENT...SEEK SHELTER IN THE
INNERMOST PORTION OF THE BUILDING ON THE LOWEST FLOOR.  IF YOU LIVE
IN A MOBILE HOME...ABANDON IT FOR A STRONGER SHELTER.
 
MENTZER

What forecasters said that day

The local office's own words before this tornado 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, Jun 7, 4:38 PM CDT, 1 hour 21 minutes before
SDZALL-072240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
438 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 330 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...WITH BRIEF HEAVY RAIN
AND STRONG GUSTY WINDS CONTINUED OVER NORTHEAST THROUGH SOUTHEAST SOUTH
DAKOTA.

THE STRONGEST THUNDERSTORMS WERE OVER SOUTHEAST SOUTH DAKOTA...FROM
SIOUX FALLS TO 25 MILES SOUTHWEST OF BROOKINGS.

A LINE OF THUNDERSTORMS STRETCHED FROM 15 MILES SOUTH OF SIOUX FALLS
TO ABERDEEN.

THESE THUNDERSTORMS WERE MOVING TO THE NORTH AT 45 MILES AN HOUR.
THESE ARE DANGEROUS THUNDERSTORMS.  NUMEROUS REPORTS OF TORNADOES AND
FUNNELS HAVE BEEN RECEIVED FROM THESE STORMS.

IF YOU FIND YOURSELF IN THE PATH OF ONE OF THESE STORMS SEEK SHELTER
IMMEDIATELY IN A REINFORCED SHELTER.

STOREY
Special weather statement, Jun 7, 4:38 PM CDT, 1 hour 21 minutes before
SDZALL-072240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
438 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 330 PM CDT...NUMEROUS VERY STRONG THUNDERSTORMS...WITH BRIEF HEAVY RAIN
AND STRONG GUSTY WINDS CONTINUED OVER NORTHEAST THROUGH SOUTHEAST SOUTH
DAKOTA.

THE STRONGEST THUNDERSTORMS WERE OVER SOUTHEAST SOUTH DAKOTA...FROM
SIOUX FALLS TO 25 MILES SOUTHWEST OF BROOKINGS.

A LINE OF THUNDERSTORMS STRETCHED FROM 15 MILES SOUTH OF SIOUX FALLS
TO ABERDEEN.

THESE THUNDERSTORMS WERE MOVING TO THE NORTH AT 45 MILES AN HOUR.
THESE ARE DANGEROUS THUNDERSTORMS.  NUMEROUS REPORTS OF TORNADOES AND
FUNNELS HAVE BEEN RECEIVED FROM THESE STORMS.

IF YOU FIND YOURSELF IN THE PATH OF ONE OF THESE STORMS SEEK SHELTER
IMMEDIATELY IN A REINFORCED SHELTER.

STOREY
Special weather statement, Jun 7, 4:45 PM CDT, 1 hour 14 minutes before
SDZ011-072220-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
445 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 445 PM CDT...THE SEVERE THUNDERSTORMS OVER EASTERN BEADLE AND WESTERN
KINGSBURY COUNTIES HAD DECREASED IN INTENSITY...AND NO FURTHER SEVERE
WEATHER HAD BEEN REPORTED.

THE TORNADO WARNINGS FOR EASTERN BEADLE AND WESTERN KINGSBURY COUNTIES
WILL BE ALLOWED TO EXPIRE AT 445 PM CDT.
STOREY
Special weather statement, Jun 7, 4:46 PM CDT, 1 hour 13 minutes before
SDZ011-072220-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
445 PM CDT MON JUN 7 1993

...TORNADO WATCH FOR SOUTHEAST...EAST CENTRAL...NORTH CENTRAL AND NORTHEAST
SOUTH DAKOTA UNTIL 8PM CDT...

AT 445 PM CDT...THE SEVERE THUNDERSTORMS OVER EASTERN BEADLE AND WESTERN
KINGSBURY COUNTIES HAD DECREASED IN INTENSITY...AND NO FURTHER SEVERE
WEATHER HAD BEEN REPORTED.

THE TORNADO WARNINGS FOR EASTERN BEADLE AND WESTERN KINGSBURY COUNTIES
WILL BE ALLOWED TO EXPIRE AT 445 PM CDT.
STOREY
Special weather statement, Jun 7, 5:16 PM CDT, 43 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-072330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
516 PM CDT MON JUN 7 1993

...THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING...

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP AND MOVE
RAPIDLY NORTHEAST THROUGH THE AREA.  SOME OF THESE STORMS COULD BECOME
SEVERE.  AS A RESULT...A TORNADO WATCH REMAINS IN EFFECT UNITL 8 PM.

IN ADDITION WINDS SHOULD BECOME WEST AND REMAIN GUSTY AT 20 TO 30 MILES
AN HOUR. STONGER WINDS CAN BE EXPECTED NEAR THUNDERSTORMS.

HUMPHREY
Special weather statement, Jun 7, 5:17 PM CDT, 42 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-072330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX CITY IA
516 PM CDT MON JUN 7 1993

...THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING...

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP AND MOVE
RAPIDLY NORTHEAST THROUGH THE AREA.  SOME OF THESE STORMS COULD BECOME
SEVERE.  AS A RESULT...A TORNADO WATCH REMAINS IN EFFECT UNITL 8 PM.

IN ADDITION WINDS SHOULD BECOME WEST AND REMAIN GUSTY AT 20 TO 30 MILES
AN HOUR. STONGER WINDS CAN BE EXPECTED NEAR THUNDERSTORMS.

HUMPHREY

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 5:33 PM CDTSevere Thunderstorm WarningFSDRock42 min
Jun 7, 5:54 PM CDTSevere Thunderstorm WarningFSDPipestone41 min
Jun 7, 6:40 PM CDTTornado WarningFSDNobles35 min

Nearby

Tornado Warnings in Minnesota, 1993Every tornado warning in 1993Tornadoes in 1993

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.