Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 50, NWS Grand Forks, ND

June 23, 2003Grant County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 23, 2003, 12:36 PM CDT for Grant County, Minnesota. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2003, 12:36 PM CDT (17:36 UTC)
Expired
Jun 23, 2003, 1:30 PM CDT
In force
54 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Grant County, MN

The radar

The Aberdeen radar (KABR), 192 km from the middle of the area, began a volume at 17:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 5.6 hours before the alert went out and 218 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, Aberdeen, SD at 12:00Z on 2003-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2802 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, Aberdeen, SD at 12:00Z on 2003-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 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
2802 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
685 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
2.1
Supercell composite
10.9

Open this sounding in Storm Lab

The text

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

837 
WUUS53 KFGF 231736
SVRFGF
MNC051-231830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1235 PM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  GRANT COUNTY IN WEST CENTRAL MINNESOTA.

* UNTIL 130 PM CDT.

* AT 1232 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER HERMAN...OR ABOUT 31 MILES SOUTH OF FERGUS
  FALLS...MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  HERMAN AT 1245 PM...
  ELBOW LAKE AND BARRETT AT 1255 PM AND
  ERDAHL AT 105 PM.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

LAT...LON 4609 9624 4577 9622 4578 9579 4609 9579

$$

77/GJG

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.

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 9:50 AM CDT, 2 hours 46 minutes earlier.

Area forecast discussion, Jun 23, 9:50 AM CDT, 2 hours 46 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
950 AM CDT MON JUN 23 2003

BASES ARE COVERED WELL THIS MORNING...SO ONLY A FEW MINOR TWEAKS
EXPECTED. SLOW MOVING LINE OF THUNDERSTORMS (A FEW SEVERE) SET UP
RIGHT ALONG THE RED RIVER VALLEY. THE STRONGEST CELLS ACROSS THE
SOUTHEAST FA AND THIS AREA HAS BEEN HIT THE HARDEST WITH RAINFALL
DURING THE PAST SEVERAL EVENTS. PRIOR SHIFT ISSUED A FLASH FLOOD
WATCH FOR THE SOUTHERN FA AND WITH CURRENT HEAVIER RAIN AND MORE
EXPECTED...WILL CONTINUE. SPC SLIGHT RISK AREA COVERS SOUTH/EAST FA
SO WILL MAINTAIN POSSIBLE SEVERE WORDING IN THESE AREAS. LOTS OF
CLOUDS ALONG THE VALLEY AND EAST WHICH WILL INHIBIT A LOT OF TEMP
RISE THIS AFTERNOON. SHOULD SEE BETTER RISE TO THE WEST OF THE
VALLEY...BUT THIS AREA WAS COOLER THAN AREAS TO THE EAST. SO TEMPS
SHOULD BALANCE OUT TO WHAT IS EXPECTED IN THE GRIDS. WEAK SFC FLOW
AND SOUPY DEW POINTS LEADING TO PERSISTENT FOG SO WILL PROBABLY
INCLUDE A MENTION INTO EARLY AFTERNOON.

.FGF...FLASH FLOOD WATCH ALONG AND SOUTH OF A LINE FROM KFAR-KPKD
THIS AFTERNOON AND TONIGHT.

GODON
Hazardous weather outlook, Jun 23, 7:31 AM CDT, 5 hours 5 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-231530-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
731 AM CDT MON JUN 23 2003

...A FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF SOUTHEAST NORTH
DAKOTA AND WEST CENTRAL MINNESOTA THIS AFTERNOON AND TONIGHT...

...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF SOUTHEAST
NORTH DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST
CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
SOUTHEAST NORTH DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA THIS
AFTERNOON AND EVENING. SEVERE THUNDERSTORMS MAY DEVELOP OVER
SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA AFTER 2 PM CDT
LIFTING NORTHEAST INTO THE EVENING HOURS. THE PRIMARY THREAT WILL BE
LARGE HAIL AND DAMAGING WINDS. THESE THUNDERSTORMS WILL ALSO BE
CAPABLE OF PRODUCING VERY HEAVY RAINFALL. WITH RECENT HEAVY RAINS
OVER PARTS OF SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA
ADDITIONAL HEAVY RAIN MAY LEAD TO FLOODING PROBLEMS. AS A RESULT A
FLASH FLOOD WATCH HAS BEEN ISSUED FOR SOUTHEAST NORTH DAKOTA AND
WEST CENTRAL MINNESOTA FOR THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
CHANCES FOR THUNDERSTORMS WILL CONTINUE ACROSS MAINLY SOUTHERN PARTS
OF THE REGION INTO WEDNESDAY. AT THIS TIME IT APPEARS THE STRONGEST
STORMS WILL BE SOUTH OF THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.CRH.NOAA.GOV/FGF/INDEX.HTML (ALL LOWER CASE)

VOELKER

In the hours before

Local storm report, Jun 23, 8:18 AM CDT, 4 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
818 AM CDT MON JUN 23 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0720 AM    7 NW LITCHVILLE           ND   .75 INCH HAIL
06/23/03   BARNES                         REPORTED BY CO-OP
                                          OBSERVER.

DPORTER
Local storm report, Jun 23, 9:23 AM CDT, 3 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
923 AM CDT MON JUN 23 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0918 AM    3 NE HAVANA               ND   .75 INCH HAIL
06/23/03   SARGENT                        REPORTED BY PUBLIC.

GJG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 11:32 AM CDTFlash Flood WarningFGFGrant8 hr
Jun 23, 12:46 PM CDTFlash Flood WarningFGFOtter Tail8 hr
Jun 23, 1:55 PM CDTSevere Thunderstorm WarningFGFOtter Tail35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.