Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 168, NWS Twin Cities, MN

August 7, 1994Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 7, 1994, 6:22 PM CDT for Renville County, Minnesota. It was in force for 38 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: Aug 7, 1994, 6:22 PM CDT (23:22 UTC)
Expired: Aug 7, 1994, 7:00 PM CDT
In force: 38 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Renville County, MN

What was reported inside it

Time	Report	Where	Remark
Aug 7, 6:22 PM CDT	Tornado F0	Fairfax, MN	A tornado touched briefly mear Fairfax and reportedly did no damage.

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 12:00Z, 11.4 hours before the alert went out and 107 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1220 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 171 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 072323
SVRMSP
MNC129-080030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
622 PM CDT SUN AUG 7 1994
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  71530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL MINNESOTA
 
   ...EASTERN RENVILLE COUNTY
 
AT 615 PM...A SEVERE THUNDERSTORM WAS INDICATED BY RADAR IN EASTERN
RENVILLE COUNTY NEAR HECTOR. THE THUNDERSTORM WAS MOVING TO THE SOUTH AT
ABOUT 15 MILES AN HOUR. THIS SEVERE THUNDERSTORM WARNING REPLACES A
TORNADO WARNING THAT EXPIRED AT 615 PM. THE THUNDERSTORM COMPLEX THAT
THIS STORM IS A PART OF HAVE SHOWN A HISTORY OF LARGE HAIL.
 
COMMUNITIES IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE
MORTON...FRANKLIN AND FAIRFAX.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM.  PEOPLE IN MOBILE HOMES SHOULD GO
TO A STORM SHELTER.
SCOTT

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

Local storm report, Aug 7, 5:30 PM CDT, 52 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
530 PM CDT AUG 7 1994

TIME          EVENT

430 PM        3/4 INCH  HAIL AT SULLIVAN LAKE RESORT IN MORRISON
              COUNTY...25 MILES NORTHEAST OF LITTLE FALLS.

520 PM        GOLF BALL SIZE HAIL (13/4 INCH) HAIL AT WOOD LAKE
              IN YELLOW MEDICINE COUNTY...10 MILES SOUTH OF GRANITE
              FALLS.

FRASER

Special weather statement, Aug 7, 6:08 PM CDT, 14 minutes before

MNZ041-042-046>048-072345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
608 PM CDT SUN AUG 7 1994

...PORTION OF WEST CENTRAL MINNESOTA CLEARED FROM SEVERE THUNDERSTORM
WATCH...

A PORTION OF WEST CENTRAL MINNESOTA HAS BEEN CLEARED FROM THE SEVERE
THUNDERSTORM WATCH ISSUED ABOUT 330 PM THIS AFTERNOON.  THE COUNTIES
CLEARED FROM THE WATCH ARE TODD...DOUGLAS...POPE...STEVENS...AND BIG
STONE.

THE REMAINDER OF CENTRAL MINNESOTA INCLUDING THE TWIN CITIES ARE
STILL UNDER A SEVERE THUNDERSTORM WATCH UNTIL 10 PM.  ALL OF
SOUTHERN MINNESOTA INCLUDING ROCHESTER IS UNDER A SEVERE
THUNDERSTORM WATCH UNTIL 1 AM.

KAVINSKY

Special weather statement, Aug 7, 6:10 PM CDT, 12 minutes before

MNZ041-042-046>048-072345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
608 PM CDT SUN AUG 7 1994

...PORTION OF WEST CENTRAL MINNESOTA CLEARED FROM SEVERE THUNDERSTORM
WATCH...

A PORTION OF WEST CENTRAL MINNESOTA HAS BEEN CLEARED FROM THE SEVERE
THUNDERSTORM WATCH ISSUED ABOUT 330 PM THIS AFTERNOON.  THE COUNTIES
CLEARED FROM THE WATCH ARE TODD...DOUGLAS...POPE...STEVENS...AND BIG
STONE.

THE REMAINDER OF CENTRAL MINNESOTA INCLUDING THE TWIN CITIES ARE
STILL UNDER A SEVERE THUNDERSTORM WATCH UNTIL 10 PM.  ALL OF
SOUTHERN MINNESOTA INCLUDING ROCHESTER IS UNDER A SEVERE
THUNDERSTORM WATCH UNTIL 1 AM.

KAVINSKY

Local storm report, Aug 7, 6:18 PM CDT, 4 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
620 PM CDT AUG 7 1994

TIME          EVENT

430 PM        3/4 INCH  HAIL AT SULLIVAN LAKE RESORT IN MORRISON
              COUNTY...25 MILES NORTHEAST OF LITTLE FALLS.

520 PM        GOLF BALL SIZE HAIL (13/4 INCH) HAIL AT WOOD LAKE
              IN YELLOW MEDICINE COUNTY...10 MILES SOUTH OF GRANITE
              FALLS.

538 PM        BRIEF TORNADO TOUCHDOWN SOUTH OF BLOMKEST ON THE
              KANDIYOHI/RENVILLE COUNTIES BORDER...15 MILES SOUTH OF
              WILLMAR.

MCBEATH PETERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 4:44 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	61 min
Aug 7, 5:12 PM CDT	Severe Thunderstorm Warning	MPX	Meeker	63 min
Aug 7, 5:17 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	43 min
Aug 7, 5:27 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	48 min
Aug 7, 5:40 PM CDT	Tornado Warning	MPX	Kandiyohi	35 min
Aug 7, 5:47 PM CDT	Tornado Warning	MPX	Renville	28 min
Aug 7, 6:35 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	25 min
Aug 7, 6:44 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet	31 min
Aug 7, 6:54 PM CDT	Severe Thunderstorm Warning	MPX	Scott, Sibley	36 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1994 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.