Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 198, NWS Twin Cities, MN

August 27, 1994Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 27, 1994, 10:00 AM CDT for Mille Lacs County, Minnesota. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Aug 27, 1994, 10:00 AM CDT (15:00 UTC)
Expired
Aug 27, 1994, 10:30 AM CDT
In force
30 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Mille Lacs County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 3.0 hours before the alert went out and 294 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, International Fa, MN at 12:00Z on 1994-08-27Temperature 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, International Fa, MN at 12:00Z on 1994-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
1524 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
471 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTC 271500 RRA
SVRSTC
MNC095-271530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
1000 AM CDT SAT AUG 27 1994
 
THE NATIONAL WEATHER SERVICE IN ST CLOUD MINNESOTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MINNESOTA
 
   ...NORTHERN MILLE LACS COUNTY
 
AT 955 AM RADAR SHOWED A SEVERE THUNDERSTORM ABOUT 10 MILES NORTHWEST
OF ONAMIA OR 25 MILES SOUTHEAST OF BRAINERD MOVING EAST AT 35 MPH.
THIS STORM WILL AFFECT THE SOUTH SHORE OF MILLE LACS LAKE AND THE
CITIES OF ONAMIA...WAHKON AND ISLE BETWEEN 10 AND 1030 AM.
 
 
IF YOU ARE ON A LAKE...GET TO SHORE IMMEDI2ATELY.  IF YOU ARE IN
A VEHICLE...REMAIN INSIDE...BUT DO NOT TOUCH METAL EXPOSED TO THE
OUTSIDE.
 
 
 
NNNN

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, Aug 27, 7:07 AM CDT, 2 hours 53 minutes before
MNZ004>096-271400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
707 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 PM CDT...

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR NORTHERN MINNESOTA...GENERALLY NORTH OF A
LINE EXTENDING FROM MOORHEAD TO CARLTON AND THREE NORTHWEST COUNTIES OF
NORTHWEST WISCONSIN.

RANDOM SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE INTO AND DISSIPATE IN
THE MORE STABLE AIR OVER SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN.

EXPECT VARIABLE CLOUDINESS THIS MORNING WITH AN INCREASING CHANCE FOR SHOWERS
AND THUNDERSTORMS ACROSS THE REGION AS THE AIR MASS OVER THE AREA CONTINUES
TO BECOME LESS STABLE. WARM AND HUMID CONDITIONS ARE ANTICIPATED WITH THE
TEMPERATURES NEARING 80 BY MID MORNING. THE WINDS SHOULD REMAIN SOUTHEAST
AT 10 TO 15 MPH THROUGH THE MORNING HOURS.
CARROLL
Special weather statement, Aug 27, 7:08 AM CDT, 2 hours 52 minutes before
MNZ004>096-271400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
707 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 100 PM CDT...

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR NORTHERN MINNESOTA...GENERALLY NORTH OF A
LINE EXTENDING FROM MOORHEAD TO CARLTON AND THREE NORTHWEST COUNTIES OF
NORTHWEST WISCONSIN.

RANDOM SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE INTO AND DISSIPATE IN
THE MORE STABLE AIR OVER SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN.

EXPECT VARIABLE CLOUDINESS THIS MORNING WITH AN INCREASING CHANCE FOR SHOWERS
AND THUNDERSTORMS ACROSS THE REGION AS THE AIR MASS OVER THE AREA CONTINUES
TO BECOME LESS STABLE. WARM AND HUMID CONDITIONS ARE ANTICIPATED WITH THE
TEMPERATURES NEARING 80 BY MID MORNING. THE WINDS SHOULD REMAIN SOUTHEAST
AT 10 TO 15 MPH THROUGH THE MORNING HOURS.
CARROLL
Special weather statement, Aug 27, 9:45 AM CDT, 15 minutes before
MNZ042>044-046-048>051-054>058-064-271600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
945 AM CDT SAT AUG 27 1994

...THUNDERSTORMS APPROACHING MILLE LACS LAKE...

AT 945 AM AN AREA OF STRONG THUNDERSTORMS WAS LOCATED FROM BRAINERD
SOUTHWEST TO NEAR MILACA AND WAS MOVING EAST AT 30 MPH. THESE STORMS
WILL AFFECT MILLE LACS LAKE UNTIL AROUND 11 AM. STRONG WINDS...UP TO
50 MPH ARE POSSIBLE AS THESE STORMS MOVE ACROSS THE LAKE. BOATERS
SHOULD ALSO BE PREPARED FOR LIGHTNING...HEAVY RAINS AND SMALL HAIL.

PERSON ON AND NEAR MILLE LACS LAKE ESPECIALLY BOATERS SHOULD SEEK
SAFE SHELTER.

RAY
Special weather statement, Aug 27, 9:49 AM CDT, 11 minutes before
MNZ042>044-046-048>051-054>058-064-271600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
945 AM CDT SAT AUG 27 1994

...THUNDERSTORMS APPROACHING MILLE LACS LAKE...

AT 945 AM AN AREA OF STRONG THUNDERSTORMS WAS LOCATED FROM BRAINERD
SOUTHWEST TO NEAR MILACA AND WAS MOVING EAST AT 30 MPH. THESE STORMS
WILL AFFECT MILLE LACS LAKE UNTIL AROUND 11 AM. STRONG WINDS...UP TO
50 MPH ARE POSSIBLE AS THESE STORMS MOVE ACROSS THE LAKE. BOATERS
SHOULD ALSO BE PREPARED FOR LIGHTNING...HEAVY RAINS AND SMALL HAIL.

PERSON ON AND NEAR MILLE LACS LAKE ESPECIALLY BOATERS SHOULD SEEK
SAFE SHELTER.

RAY
Special weather statement, Aug 27, 9:58 AM CDT, 2 minutes before
MNZ004>096-280000-

SPECIAL WEATHER STATEMENT...SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1000 AM CDT SAT AUG 27 1994

...THUNDERSTORMS COULD SPAWN WINDS OVER 70 MPH...BIG HAIL AND TORNADOES...
...A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS THE GOPHER STATE TODAY...

AS OF 10AM SEVERE THUNDERSTORMS HAVE ALREADY SPAWNED LARGE HAIL AND AT
LEAST ONE TORNADO IN NORTHERN MINNESOTA.  THE ATMOSPHERE ACROSS
MINNESOTA WILL REMAIN A POWDER KEG FOR MORE SEVERE THUNDERSTORMS THIS
AFTERNOON AND INTO THE EVENING.

DURING THE AFTERNOON A STRONG COLDFRONT WILL PLOW INTO THE GOPHER STATE
AS AN AREA OF LOW PRESSURE CHARGES ACROSS NORTHERN MINNESOTA.  SOME
SEVERE THUNDERSTORMS WITH THE THREAT OF DAMAGING WINDS...LARGE HAIL
AND TORNADOES ARE VERY POSSIBLE AHEAD OF THE COLDFRONT AS IS SURGES
ACROSS THE STATE.

THE SEVERE STORMS FORECAST CENTER IN KANSAS CITY HAS INDICATED THAT THERE
IS A HIGH RISK OF SEVERE WEATHER ACROSS ALL OF THE GOPHER STATE AND
OUR NEIGHBORING STATES TO THE EAST...WISCONSIN AND UPPER MICHIGAN.

STAY TUNED THROUGHOUT THE DAY ON THE LATEST DEVELOPMENTS OF THIS
POTENTIALLY DANGEROUS WEATHER SITUATION.
PAULSON
Special weather statement, Aug 27, 10:00 AM CDT, 0 minutes before
MNZ004>096-280000-

SPECIAL WEATHER STATEMENT...SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1000 AM CDT SAT AUG 27 1994

...THUNDERSTORMS COULD SPAWN WINDS OVER 70 MPH...BIG HAIL AND TORNADOES...
...A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS THE GOPHER STATE TODAY...

AS OF 10AM SEVERE THUNDERSTORMS HAVE ALREADY SPAWNED LARGE HAIL AND AT
LEAST ONE TORNADO IN NORTHERN MINNESOTA.  THE ATMOSPHERE ACROSS
MINNESOTA WILL REMAIN A POWDER KEG FOR MORE SEVERE THUNDERSTORMS THIS
AFTERNOON AND INTO THE EVENING.

DURING THE AFTERNOON A STRONG COLDFRONT WILL PLOW INTO THE GOPHER STATE
AS AN AREA OF LOW PRESSURE CHARGES ACROSS NORTHERN MINNESOTA.  SOME
SEVERE THUNDERSTORMS WITH THE THREAT OF DAMAGING WINDS...LARGE HAIL
AND TORNADOES ARE VERY POSSIBLE AHEAD OF THE COLDFRONT AS IS SURGES
ACROSS THE STATE.

THE SEVERE STORMS FORECAST CENTER IN KANSAS CITY HAS INDICATED THAT THERE
IS A HIGH RISK OF SEVERE WEATHER ACROSS ALL OF THE GOPHER STATE AND
OUR NEIGHBORING STATES TO THE EAST...WISCONSIN AND UPPER MICHIGAN.

STAY TUNED THROUGHOUT THE DAY ON THE LATEST DEVELOPMENTS OF THIS
POTENTIALLY DANGEROUS WEATHER SITUATION.
PAULSON

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.