Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 33, NWS Twin Cities, MN

May 30, 1994Anoka County, Chisago County, Isanti County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 1994, 3:24 PM CDT for Anoka County, Chisago County, Isanti County, Minnesota. It was in force for 51 min.

The area

The counties it named.

The facts

Issued: May 30, 1994, 3:24 PM CDT (20:24 UTC)
Expired: May 30, 1994, 4:15 PM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Anoka County, MN, Chisago County, MN, Isanti County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 8.4 hours before the alert went out and 75 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: 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 
WUUS1 KMSP 302026
SVRMPX
MNC003-025-059-302115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
324 PM CDT MON MAY 30 1994
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MINNESOTA
 
   ...NORTHERN ANOKA COUNTY...CHISAGO COUNTY
   ...SOUTHERN ISANTI COUNTY
 
A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR CHISAGO...NORTHERN
ANOKA...AND SOUTHERN ISANTI COUNTY.  AT 320 PM GOLF BALL SIZE HAIL WAS
REPORTED IN BRAHM...50 MILES NORTH OF MINNEAPOLIS AND ALSO JUST WEST OF
ST FRANCIS IN NORTHERN ANOKA COUTNY.  ST FRANCIS IS 30 MILES NORTH OF
MINNEAPOLIS.
 
THIS STORM WAS MOVING EAST AT 30 MILES AN HOUR AND WILL MOVE TOWARD
RUSH CITY...RUSH POINT...STARK...HARRIS...CAMBRIDGE...CHISAGO CITY...
AND TAYLORS FALLS.
 
 
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.
 
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, 10:30 AM CDT, 4 hours 54 minutes before

MNZ004>096-302100-

SPECIAL WEATHER STATEMENT...MINNESOTA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
1030 AM CDT MON MAY 30 1994

...A GOOD CHANCE FOR SEVERE THUNDERSTORMS OVER MINNESOTA TODAY...

THERE IS A GOOD CHANCE FOR SEVERE THUNDERSTORM DEVELOPMENT OVER MUCH
OF EAST CENTRAL AND SOUTHEAST MINNESOTA THIS AFTERNOON AND INTO THE
EVENING.

THE PART OF MINNESOTA WITH THE BEST CHANCE OF SEVERE WEATHER EXTENDS
ROUGHLY EAST OF A ROCHESTER TO ST CLOUD TO DULUTH LINE.  THIS
INCLUDES ALL OF THE TWIN CITIES METRO AREA.

SEVERE STORMS PRODUCE DAMAGING STRONG WINDS...LARGE HAIL...FREQUENT
LIGHTNING...AND OCCASIONALLY AN ISOLATED TORNADO.

DO NOT BE FOOLED BY THE PLEASANT WEATHER THIS MORNING.  A POTENTIALLY
DANGEROUS WEATHER SITUATION IS DEVELOPING FOR THIS AFTERNOON AND
EVENING.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST FORECASTS AND
POSSIBLE SEVERE WEATHER WARNINGS.
DRB/CWS

Special weather statement, May 30, 10:36 AM CDT, 4 hours 48 minutes before

MNZ004>096-302100-

SPECIAL WEATHER STATEMENT...MINNESOTA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
1030 AM CDT MON MAY 30 1994

...A GOOD CHANCE FOR SEVERE THUNDERSTORMS OVER MINNESOTA TODAY...

THERE IS A GOOD CHANCE FOR SEVERE THUNDERSTORM DEVELOPMENT OVER MUCH
OF EAST CENTRAL AND SOUTHEAST MINNESOTA THIS AFTERNOON AND INTO THE
EVENING.

THE PART OF MINNESOTA WITH THE BEST CHANCE OF SEVERE WEATHER EXTENDS
ROUGHLY EAST OF A ROCHESTER TO ST CLOUD TO DULUTH LINE.  THIS
INCLUDES ALL OF THE TWIN CITIES METRO AREA.

SEVERE STORMS PRODUCE DAMAGING STRONG WINDS...LARGE HAIL...FREQUENT
LIGHTNING...AND OCCASIONALLY AN ISOLATED TORNADO.

DO NOT BE FOOLED BY THE PLEASANT WEATHER THIS MORNING.  A POTENTIALLY
DANGEROUS WEATHER SITUATION IS DEVELOPING FOR THIS AFTERNOON AND
EVENING.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST FORECASTS AND
POSSIBLE SEVERE WEATHER WARNINGS.
DRB/CWS

Special weather statement, May 30, 2:50 PM CDT, 34 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, 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 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, 9 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

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 2:57 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne	48 min
May 30, 3:02 PM CDT	Severe Thunderstorm Warning	MPX	Wright	18 min
May 30, 3:09 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	51 min
May 30, 3:53 PM CDT	Tornado Warning	MPX	Hennepin	40 min
May 30, 3:53 PM CDT	Tornado Warning	MPX	Anoka, Ramsey	52 min
May 30, 4:06 PM CDT	Tornado Warning	MPX	Chisago, Washington	54 min
May 30, 4:20 PM CDT	Tornado Warning	MPX	Anoka, Hennepin, Ramsey	25 min
May 30, 6:22 PM CDT	Severe Thunderstorm Warning	MPX	Dodge, Steele	38 min
May 30, 6:58 PM CDT	Severe Thunderstorm Warning	MPX	Olmsted	47 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; the sounding from the Mesonet's radiosonde archive.