Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 52, NWS Twin Cities, MN

July 7, 1993Dakota County, Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 7, 1993, 2:50 PM CDT for Dakota County, Scott County, Minnesota. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1993, 2:50 PM CDT (19:50 UTC)
Expired
Jul 7, 1993, 3:30 PM CDT
In force
40 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Dakota County, MN, Scott County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 7.8 hours before the alert went out and 32 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 1993-07-07Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1993-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
112 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 
WUUS1 KMSP 071951
SVRMPX
MNC037-139-072030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
250 PM CDT WED JUL 7 1993
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  330 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MINNESOTA
 
   ...WESTERN DAKOTA COUNTY...EASTERN SCOTT COUNTY
 
AT 248 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 30
MILES SOUTHWEST OF DOWNTOWN MINNEAPOLIS IN EASTERN SCOTT COUNTY..NEAR
THE CITY OF NEW MARKET.
 
THIS STORM WILL MOVE NORTHEAST TOWARDS THE TOWNS OF PRIOR LAKE AND
LAKEVILLE BETWEEN 250PM CDT AND 330 PM CDT.
 
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.
EDWARDS

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, Jul 7, 1:14 PM CDT, 1 hour 36 minutes before
MNZ013-014-072000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
110 PM CDT TUE JUL 6 1993

...STRONG THUNDERSTORMS APPROACHING ST CLOUD...

AT 1PM CDT STRONG THUNDERSTORMS WERE LOCATED IN SOUTHEASTERN
STEARNS COUNTY MOVING NORTHEAST AT 30 MPH.  THESE THUNDERSTORMS
ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...SMAL HAIL...DEADLY LIGHTNING
AND GUSTY WINDS.

NO SEVERE WEATHER IS EXP~ECTED FROM THESE STORMS BUT PERSONS IN THE
ST CLOUD METRO AREA SHOULD BE PREPARED TO SEEK SHELTER IF THREATENING
WEATHER APPROACHES.  BOATERS SHOULD SEEK SAFE HARBOR UNTIL THE STORMS
MOVE THROUGH THE AREA.

FRASER
Special weather statement, Jul 7, 1:16 PM CDT, 1 hour 34 minutes before
MNZ013-014-072000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
110 PM CDT TUE JUL 6 1993

...STRONG THUNDERSTORMS APPROACHING ST CLOUD...

AT 1PM CDT STRONG THUNDERSTORMS WERE LOCATED IN SOUTHEASTERN
STEARNS COUNTY MOVING NORTHEAST AT 30 MPH.  THESE THUNDERSTORMS
ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING
AND GUSTY WINDS.

NO SEVERE WEATHER IS EXPECTED FROM THESE STORMS BUT PERSONS IN THE
ST CLOUD METRO AREA SHOULD BE PREPARED TO SEEK SHELTER IF THREATENING
WEATHER APPROACHES.  BOATERS SHOULD SEEK SAFE HARBOR UNTIL THE STORMS
MOVE THROUGH THE AREA.

FRASER
Special weather statement, Jul 7, 1:50 PM CDT, 1 hour before
MNZ010>019-072000-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
150 PM CDT WED JUL 7 1993

...HEAVY RAINS ACROSS CENTRAL MINNESOTA...

HEAVY RAIN PRODUCING THUNDERSTORMS HAVE BEEN INCREASING DURING THE
EARLY AFTERNOON ACROSS SOUTH CENTRAL AND CENTRAL MINNESOTA.

MOST OF THE HEAVY RAINS WERE OCCURRING IN A NARROW NORTH/SOUTH BAND
THAT EXTENDED FROM NEAR AND SOUTHEAST OF MANKATO TO AROUND LE SUEUR.
OTHER HEAVY RAIN PRODUCING STORMS WERE LOCATED FROM JUST SOUTH OF
ST CLOUD TO AROUND ANNANDALE AND COKATO.

ALONG WITH RAINFALL AMOUNTS THAT COULD RANGE TO NEAR 1 INCH IN SOME
OF THE STRONGER...MORE PERSISTENT STORMS...WATCH OUT FOR FREQUENT
LIGHTNING STRIKES AND THE POSSIBILITY OF SMALL HAIL AS THE THUNDER-
STORMS TRACK NORTHEAST AT 25 TO 30 MILES AN HOUR.
<
LOOKING AT THE BROADER PICTURE...SHOWERS AND THUNDERSTORMS WERE BEING
OBSERVED ON WEATHER RADAR MAINLY WEST OF A LINE FROM DULUTH TO
ST PAUL...TO AROUND ROCHESTER.

THE ACTIVITY CONTINUES TO EDGE FURTHER EAST AND WILL BEGIN TO OVERSPREAD
MUCH OF EASTERN MINNESOTA AND WESTERN WISCONSIN AFTER 300 PM.

KVS
Special weather statement, Jul 7, 1:56 PM CDT, 54 minutes before
MNZ010>019-072000-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
150 PM CDT WED JUL 7 1993

...HEAVY RAINS ACROSS CENTRAL MINNESOTA...

HEAVY RAIN PRODUCING THUNDERSTORMS HAVE BEEN INCREASING DURING THE
EARLY AFTERNOON ACROSS SOUTH CENTRAL AND CENTRAL MINNESOTA.

MOST OF THE HEAVY RAINS WERE OCCURRING IN A NARROW NORTH/SOUTH BAND
THAT EXTENDED FROM NEAR AND SOUTHEAST OF MANKATO TO AROUND LE SUEUR.
OTHER HEAVY RAIN PRODUCING STORMS WERE LOCATED FROM JUST SOUTH OF
ST CLOUD TO AROUND ANNANDALE AND COKATO.

ALONG WITH RAINFALL AMOUNTS THAT COULD RANGE TO NEAR 1 INCH IN SOME
OF THE STRONGER...MORE PERSISTENT STORMS...WATCH OUT FOR FREQUENT
LIGHTNING STRIKES AND THE POSSIBILITY OF SMALL HAIL AS THE THUNDER-
STORMS TRACK NORTHEAST AT 25 TO 30 MILES AN HOUR.
<
LOOKING AT THE BROADER PICTURE...SHOWERS AND THUNDERSTORMS WERE BEING
OBSERVED ON WEATHER RADAR MAINLY WEST OF A LINE FROM DULUTH TO
SjT PAUL...TO AROUND ROCHESTER.

THE ACTIVITY CONTINUES TO EDGE FURTHER EAST AND WILL BEGIN TO OVERSPREAD
MUCH OF EASTERN MINNESOTA AND WESTERN WISCONSIN AFTER 300 PM.

KVS
Special weather statement, Jul 7, 2:22 PM CDT, 28 minutes before
MNZ013-014-072000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
215 PM CDT TUE JUL 6 1993

...STRONG THUNDERSTORMS SHERBURNE COUNTY...

AT 2PM STRONG THUNDERSTORMS WERE LOCATED IN EASTERN STEARNS COUNTY
AND SHERBURNE COUNTY MOVING NORTHEAST AT 30 MPH.  THESE THUNDERSTORMS
ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING
AND GUSTY WINDS.
PERSONS IN BIG LAKE...CLEAR LAKE...BECKER AND ZIMMERMAN SHOUI

NO SEVERE WEATHER IS EXPECTED FROM THESE STORMS BUT PERSONS IN BIG LAKE
...CLEAR LAKE...BECKER...ZIMMERMAN AND SANTIAGO SHOULD BE PREPARED TO
SEEK SHELTER IF THREATENING WEATHER APPROACHES. BOATERS SHOULD SEEK SAFE
HARBOR UNTIL THE STORMS MOVE THROUGH THE AREA.

FRASER
Special weather statement, Jul 7, 2:24 PM CDT, 26 minutes before
MNZ013-014-072000-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE ST CLOUD MN
215 PM CDT TUE JUL 6 1993

...STRONG THUNDERSTORMS SHERBURNE COUNTY...

AT 2PM STRONG THUNDERSTORMS WERE LOCATED IN EASTERN STEARNS COUNTY
AND SHERBURNE COUNTY MOVING NORTHEAST AT 30 MPH.  THESE THUNDERSTORMS
ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING
AND GUSTY WINDS.

NO SEVERE WEATHER IS EXPECTED FROM THESE STORMS BUT PERSONS IN BIG LAKE
...CLEAR LAKE...BECKER...ZIMMERMAN AND SANTIAGO SHOULD BE PREPARED TO
SEEK SHELTER IF THREATENING WEATHER APPROACHES. BOATERS SHOULD SEEK SAFE
HARBOR UNTIL THE STORMS MOVE THROUGH THE AREA.

FRASER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:43 PM CDTTornado WarningMPXRice32 min
Jul 7, 3:28 PM CDTTornado WarningMPXAnoka, Ramsey32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1993Every severe thunderstorm warning 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.