Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 35, NWS Twin Cities, MN

May 30, 1994Dunn County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 1994, 5:22 PM CDT for Dunn County, Wisconsin. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
May 30, 1994, 5:22 PM CDT (22:22 UTC)
Expired
May 30, 1994, 6:30 PM CDT
In force
68 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Dunn County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.4 hours before the alert went out and 135 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 12:00Z on 1994-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 1994-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1954 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
197 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 302222
SVRMSP
WIC033-302330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
522 PM CDT MON MAY 30 1994
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WISCONSIN
 
   ...DUNN COUNTY
 
AT 520 PM RADAR SHOWED A SEVERE THUNDERSTORM MOVING INTO DUNN COUNTY.
THIS STORM WAS MOVING EAST AT 30 MILES AN HOUR AND WAS NOW MOVING INTO
CONNORSVILLE...BOYCEVILLE AND WESTON.
 
PEOPLE IN WHEELER AND MENOMONIE SHOULD ALSO PLAN TO TAKE SHELTER AROUND
545 PM TO 615 PM.
 
A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 10 PM* TONIGHT.
REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE
OR NO WARNING.  STAY INDOORS...REMAIN CALM AND BE READY TO MOVE
QUICKLY TO THE BASEMENT.
 
JHM/DRB

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, May 30, 2:50 PM CDT, 2 hours 32 minutes before
MNZ004>096-302300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
250 PM CDT MON MAY 30 1994

...THUNDERSTORMS RAPIDLY DEVELOPING WEST OF THE TWIN CITIES...
...TORNADO WATCH VALID FOR THE TWIN CITES AREA UNTIL 10 PM CDT...

A POWERFUL LINE OF THUNDERSTORMS FROM NORTHEAST OF MILLE LACS
SOUTHWARD TO NEAR MONTICELLO IS SHOWING SIGNS OF RAPIDLY FILLING IN TO
THE WEST OF THE TWIN CITIES METRO AREA.  TOWARDS THE SOUTH END OF THIS
LINE...MARBLE SIZE HAIL WAS REPORTED AROUND 235 PM ABOUT 5 MILES WEST OF
PRINCETON MINNESOTA.

BOATERS ON AREA LAKES SHOULD PLAN AHEAD AND BE ABLE TO QUICKLY GET TO
SHORE ONCE THESE THUNDERSTORMS MOVE INTO THE WESTERN METRO AREA.  THIS
LINE OF THUNDERSTORMS WILL LIKELY BRING WIND GUSTS IN EXCESS OF 50 MPH
...HAIL AND DEADLY LIGHTNING STRIKES INTO THE WESTERN TWIN CITES METRO
AREA SOMETIME BETWEEN 4 PM AND 5 PM TODAY.

 WET
Special weather statement, May 30, 2:52 PM CDT, 2 hours 30 minutes before
MNZ004>096-302300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
250 PM CDT MON MAY 30 1994

...THUNDERSTORMS RAPIDLY DEVELOPING WEST OF THE TWIN CITIES...
...TORNADO WATCH VALID FOR THE TWIN CITES AREA UNTIL 10 PM CDT...

A POWERFUL LINE OF THUNDERSTORMS FROM NORTHEAST OF MILLE LACS
SOUTHWARD TO NEAR MONTICELLO IS SHOWING SIGNS OF RAPIDLY FILLING IN TO
THE WEST OF THE TWIN CITIES METRO AREA.  TOWARDS THE SOUTH END OF THIS
LINE...MARBLE SIZE HAIL WAS REPORTED AROUND 235 PM ABOUT 5 MILES WEST OF
PRINCETON MINNESOTA.

BOATERS ON AREA LAKES SHOULD PLAN AHEAD AND BE ABLE TO QUICKLY GET TO
SHORE ONCE THESE THUNDERSTORMS MOVE INTO THE WESTERN METRO AREA.  THIS
LINE O6F THUNDERSTORMS WILL LIKELY BRING WIND GUSTS IN EXCESS OF 50 MPH
...HAIL AND DEADLY LIGHTNING STRIKES INTO THE WESTERN TWIN CITES METRO
AREA SOMETIME BETWEEN 4 PM AND 5 PM TODAY.

 WET
Local storm report, May 30, 3:15 PM CDT, 2 hours 7 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
315 PM CDT MON MAY 30 1994

TIME          EVENTY

300 PM CDT    GOLF BALL SIZE HAIL NEAR BIG LAKE MN...SHERBURNE COUNTY
              WALL CLOUD NEAR BECKER IN SHERBURNE COUNTY.

300 PM CDT    DIME SIZE HAIL NEAR PRINCETON IN MILLE LACS COUNTY.

FRASER
Local storm report, May 30, 3:34 PM CDT, 1 hour 48 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST CLOUD MN
315 PM CDT MON MAY 30 1994

TIME          EVENTY

300 PM CDT    GOLF BALL SIZE HAIL NEAR BIG LAKE MN...SHERBURNE COUNTY
              WALL CLOUD N>EAR BECKER IN SHERBURNE COUNTY.

300 PM CDT    DIME SIZE HAIL NEAR PRINCETON IN MILLE LACS COUNTY.

FRASER
Special weather statement, May 30, 3:40 PM CDT, 1 hour 42 minutes before
MNZ042>043-046-048>051-054>058-064-302130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
340 PM CDT MON MAY 30 1994

...SEVERE THUNDERSTORM WARNING FOR SHERBURNE COUNTY CANCELLED...

THE SEVERE THUNDERSTORM THAT MOVED THROUGH SOUTHERN SHERBURNE
COUNTY HAS MOVED EAST.

THE STORM PRODUCED GOLF BALL SIZE HAIL NEAR BIG LAKE AND A WALL
CLOUD NEAR BECKER.

PORTIONS OF EAST CENTRAL MINNESOTA REMAIN IN A TORNADO WATCH UNTIL 10
PM. PERSONS IN THE WATCH AREA SHOULD CONTINUE TO BE AWARE OF POSSIBLE
ADVERSE WEATHER CONDTIONS.

PARKIN
Special weather statement, May 30, 3:42 PM CDT, 1 hour 40 minutes before
MNZ042>043-046-048>051-054>058-064-302130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
340 PM CDT MON MAY 30 1994

...SEVERE THUNDERSTORM WARNING FOR SHERBURNE COUNTY CANCELLED...

THE SEVERE THUNDERSTORM THAT MOVED THROUGH SOUTHERN SHERBURNE
COUNTY HAS MOVED EAST.

THE STORM PRODUCED GOLF BALL SIZE HAIL NEAR BIG LAKE AND A WALL
CLOUD NEAR BECKER.

PORTIONS OF EAST CENTRAL MINNESOTA REMAjIN IN A TORNADO WATCH UNTIL 10
PM. PERSONS IN THE WATCH AREA SHOULD CONTINUE TO BE AWARE OF POSSIBLE
ADVERSE WEATHER CONDTIONS.

PARKIN

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 3:46 PM CDTSevere Thunderstorm WarningMPXPolk44 min
May 30, 4:06 PM CDTTornado WarningMPXPolk54 min
May 30, 4:27 PM CDTTornado WarningMPXSaint Croix48 min
May 30, 5:09 PM CDTTornado WarningMPXPierce, Saint Croix36 min
May 30, 5:45 PM CDTTornado WarningMPXPierce, Saint Croix30 min
May 30, 6:08 PM CDTSevere Thunderstorm WarningMPXPepin, Pierce67 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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.