Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 5, NWS Grand Forks, ND

May 23, 1994Beltrami County, Clearwater County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 23, 1994, 6:29 PM CDT for Beltrami County, Clearwater County, Minnesota. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
May 23, 1994, 6:29 PM CDT (23:29 UTC)
Expired
May 23, 1994, 7:00 PM CDT
In force
31 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

Counties Beltrami County, MN, Clearwater County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.5 hours before the alert went out and 164 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 1994-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 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 1994-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.19395878Sfc1 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
12 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
229 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 KINL 232329 RRA
SVRINL
MNC007-029-240000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN
629 PM CDT MON MAY 23 1994
 
THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A
SEVERE THUNDERSTORM WARNING     EFFECTIVE UNTIL  700 PM CDT
FOR PERSONS IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL MINNESOTA
 
   ...SOUTHWESTERN BELTRAMI COUNTY
 
IN NORTHWEST MINNESOTA
 
   ...SOUTHEASTERN CLEARWATER COUNTY
 
AT 625 PM CDT...THE SHERIFFS OFFICE IN CLEARWATER COUNTY REPORTED
NUMEROUS TREES DOWNED NEAR LAKE MINERVA WHICH IS 22 MILES WEST OF
BEMIDJI.
 
THIS LINE OF THUNDERSTORMS WAS MOVING TO THE EAST AT 35 MPH AND
SHOULD MOVE THROUGH ITASCA STATE PARK...AND THE TOWN OF LAKE ITASCA
IN SOUTHEAST CLEARWATER COUNTY. SOME OF THE TOWNS IN SOUTHWEST BELTRAMI
COUNTY ARE SOLWAY...BEMIDJI AND ROSSBY.
 
THE MAIN THREAT WITH THIS LINE OF THUNDERSTORMS IS STRONG DAMAGING
WINDS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
PACKINGHAM/DUKESHERER
 
NNNN
 


z&q6WWUS
dWUUS
V1WSCA
o6WWUSp
0q6WWUS
u6WWUS
e6WWUS
L66WWUS
(wM66WWUS
t-WUUS
sGWWUS
b\6WWUS
XWOUS
]96WWUS
RL`WWUS
4s66WWUS
DWWUS(
qI`WWUSt
S6WWUS
pYN6WWUSf
xB_WWUS
U6WWUSx
L

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 23, 3:43 PM CDT, 2 hours 46 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007-008-013>015-022-024-027>032-039>041-047-232135-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
342 PM CDT MON MAY 23 1994

...A STRONG THUNDERSTORM IS MOVING INTO EAST CENTRAL NORTH DAKOTA...

AT 325 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 30 MILES NORTHEAST
OF JAMESTOWN NORTH DAKOTA...NEAR HANNAFORD AND DAZEY.

THIS STORM COULD PRODUCE VERY HEAVY RAIN...HAIL...FREQUENT LIGHTING
STRIKES...AND STRONG WIND GUSTS AS IT MOVES ACROSS EAST CENTRAL
NORTH DAKOTA THIS AFTERNOON.  MOVEMENT WAS EAST AT 35 TO 40 MILES AN
HOUR.  THE STORM WILL PASS THROUGH ON NEAR THE FOLLOWING CITIES OR
TOWNS BY 430 PM CDT...HANNAFORD...DAZEY...HOPE...PILLSBURY...COLGATE...
PAGE...AND BLANCHARD.

IF YOU ARE IN OR NEAR ONE OF THE ABOVE LISTED CITIES OR TOWNS YOU SHOULD
BE ALERT FOR THE POSSIBLITY OF THE WEATHER CONDITIONS MENTIONED AND GO
TO A SAFE PLACE UNTIL THE STORM HAS PASSED YOUR LOCATION.

OTHER THUNDERSTORMS...SOME WITH HEAVY RAIN WERE ALSO PUSHING INTO
EAST CENTRAL NORTH DAKOTA.  THESE STORMS EXTENDED FROM NORTH OF
JAMESTOWN TO 25 MILES SOUTHWEST OF GRAND FORKS.  THE MOVEMENT OF
THESE THUNDERSTORMS WAS ALSO EAST AT 35 TO 40 MILES.

THE ATMOSPHERE OVER OUR REGION HAS BECOME VERY UNSTABLE THIS
AFTERNOON.  THE POTENTIAL FOR FURTHER DEVELOPMENT OF STRONG
THUNDERSTORMS IS HIGH.  STAY TUNED TO YOUR LOCAL RADIO...TV OR
NOAA WEATHER RADIO STATIONS F*OR UPDATES ON THIS EVENINGS DEVELOPING
WEATHER SITUATION.
DM
Local storm report, May 23, 6:05 PM CDT, 24 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
605 PM CDT MON MAY 23 1994

TIME      EVENT
500 PM    MAPLETIN NORTH DAKOTA COOPERATIVE OBSERVER REPORTED 30 TO
          40 MPH WINDS AND 1/2 INCH HAIL

505PM     GOLFBALL SIZED HAIL AND HIGH WINDS IN VERONA REPORTED BY
          CO OPERATIVE OBSERVER.

515PM     NORMAN COUNTY MINNESOTA SHERIFFS OFFICE REPORTED SIGNIFICANT
          WIND DAMAGE TO TREES AND BUILDINGS IN ADA AND GARY.
          MODERATE DAMAGE WIDESPREAD ACROSS MUCH OF THE COUNTY.

515PM     12 MILES SOUTH OF FARGO 60 MPH WINDS AS WELL AS DAMAGE TO
          GRAIN BINS AND EXTENSIVE TREE DAMAGE REPORTED BY OFF DUTY
          NATIONAL WEATHER SERVICE EMPLOYEE.

515PM     HORACE NORTH DAKOTA COOPERATIVE OBSERVER REPORTS 1 1/2 INCH
          TREE LIMBS DOWN.

545PM     10 MILES SOUTH OF COGSWELL NORTH DAKOTA 3/4 INCH HAIL REPORTED
          BY COOPERATIVE OBSERVER.
EWENS
Local storm report, May 23, 6:06 PM CDT, 23 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
605 PM CDT MON MAY 23 1994

TIME      EVENT
500 PM    MAPLETIN NORTH DAKOTA COOPERATIVE OBSERVER REPORTED 30 TO
          40 MPH WINDS AND 1/2 INCH HAIL

505PM     GOLFBALL SIZED HAIL AND HIGH WINDS IN VERONA REPORTED BY
          CO OPERATIVE OBSERVER.

515PM     NORMAN COUNTY MINNESOTA SHERIFFS OFFICE REPORTED SIGNIFICANT
          WIND DAMAGE TO TREES AND BUILDINGS IN ADA AND GARY.
          MODERATE DAMAGE WIDESPREAD ACROSS MUCH OF THE COUNTY.

515PM     12 MILES SOUTH OF FARGO 60 MPH WINDS AS WELL AS DAMAGE TO
          GRAIN BINS AND EXTENSIVE TREE DAMAGE REPORTED BY OFF DUTY
          NATIONAL WEATHER SERVICE EMPLOYEE.

515PM     HnORACE NORTH DAKOTA COOPERATIVE OBSERVER REPORTS 1 1/2 INCH
          TREE LIMBS DOWN.

545PM     10 MILES SOUTH OF COGSWELL NORTH DAKOTA 3/4 INCH HAIL REPORTED
          BY COOPERATIVE OBSERVER.
EWENS

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 9:18 PM CDTSevere Thunderstorm WarningFGFClay57 min
May 23, 4:55 PM CDTTornado WarningFGFBecker, Clay, Norman65 min
May 23, 5:19 PM CDTTornado WarningFGFClay56 min
May 23, 5:40 PM CDTTornado WarningFGFOtter Tail, Wilkin65 min
May 23, 6:41 PM CDTSevere Thunderstorm WarningFGFHubbard49 min
May 23, 6:51 PM CDTTornado WarningFGFOtter Tail69 min

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.