Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 61, NWS Grand Forks, ND

June 24, 2003Clay County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 24, 2003, 11:21 PM CDT for Clay County, Minnesota. It was in force for 39 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 24, 2003, 11:21 PM CDT (04:21 UTC)
Expired: Jun 25, 2003, 12:00 AM CDT
In force: 39 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Clay County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 78 km from the middle of the area, began a volume at 04:22 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 24, 7:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 4.4 hours before the alert went out and 279 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: 728 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 790 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 552 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

957 
WUUS53 KFGF 250421
SVRFGF
MNC027-250500-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1120 PM CDT TUE JUN 24 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORTHERN CLAY COUNTY IN NORTHWEST MINNESOTA.

* UNTIL MIDNIGHT CDT.

* AT 1117 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES NORTHWEST OF KRAGNES...OR ABOUT 11
  MILES NORTH OF FARGO...MOVEMENT WAS TO THE NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  GEORGETOWN AT 1125 PM...
  AVERILL AT 1130 PM...
  FELTON AT 1135 PM...
  HITTERDAL AT 1145 PM AND
  ULEN AT 1150 PM.

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM WEDNESDAY
MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA.

LAT...LON 4714 9681 4693 9675 4693 9619 4714 9624

$$

DONAVON

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 24, 7:55 PM CDT, 3 hours 26 minutes earlier.

Area forecast discussion, Jun 24, 7:55 PM CDT, 3 hours 26 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
755 PM CDT TUE JUN 24 2003

.CURRENT OBSERVATIONAL OVERVIEW...
00Z MSAS ANALYSIS DEPICTED FRONTAL BOUNDARY FROM SOUTH CENTRAL
NEBRASKA TO SOUTHERN MINNESOTA WITH WAVE OF LOW PRESSURE ALONG
BOUNDARY NOTED OVER NORTHEAST NEBRASKA. STRONGEST PRESSURE FALLS
ATTM EVIDENT FROM EASTERN SOUTH DAKOTA TO SOUTHERN MINNESOTA.
LATEST WATER VAPOR IMAGERY INDICATED POWERFUL 100KT JET MAX
PUNCHING NORTHEAST TOWARD NORTHERN PLAINS.

.FORECAST DETAILS...
SEVERE WEATHER POTENTIAL CONTINUES FROM SOUTHEAST NORTH DAKOTA
INTO ADJACENT MINNESOTA COUNTIES TONIGHT WHERE NEW SEVERE WATCH
BOX ISSUED UNTIL 1AM. EXPECT THUNDER CHANCES/HEAVY POTENTIAL TO
INCREASE OVERNIGHT AS LARGE SCALE ASCENT INCREASES AHEAD OF UPPER
LEVEL JET AND SURFACE WAVE OF LOW PRESSURE. NO MAJOR REVISIONS
OF INHERITED ZONE PACKAGE PLANNED ATTM.

.FGF...FLASH FLOOD WATCH THROUGH WEDNESDAY AFTERNOON FOR SOUTHERN
ZONES NDZ038-039-049-052-053-MNZ003-022>024-027>029>032-040.

BERG

Hazardous weather outlook, Jun 24, 6:30 AM CDT, 16 hours 51 minutes before

HMNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-241430-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
630 AM CDT TUE JUN 24 2003

...A FLASH FLOOD WATCH IS IN EFFECT FOR EXTREME SOUTHEAST NORTH
DAKOTA AND PORTIONS OF WEST CENTRAL MINNESOTA INTO WEDNESDAY
MORNING...

...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF EXTREME
SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA TODAY AND THIS
EVENING...

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
EXTREME SOUTHEAST NORTH DAKOTA AND PORTIONS OF WEST CENTRAL
MINNESOTA THIS AFTERNOON AND EVENING. THUNDERSTORMS ARE EXPECTED TO
REDEVELOP AFTER 2PM OVER NORTHEAST SOUTH DAKOTA AND SOUTHERN
MINNESOTA LIFTING NORTHEAST INTO SOUTHERN PARTS OF THE REGION. THE
FAVORED AREA FOR SEVERE STORMS WILL BE SOUTH OF A LINE FROM LISBON
NORTH DAKOTA TO WADENA MINNESOTA. 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 SOILS ARE
SATURATED AND ANY ADDITIONAL RAINFALL WILL RESULT IN FLOODING
PROBLEMS. AS A RESULT A FLASH FLOOD WATCH HAS BEEN ISSUED FOR
EXTREME SOUTHEAST NORTH DAKOTA AND WEST CENTRAL MINNESOTA INTO
WEDNESDAY MORNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.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 24, 10:57 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1057 PM CDT TUE JUN 24 2003

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

1012 PM    VALLEY CITY               ND   WIND DAMAGE
06/24/03   BARNES                         NUMEROUS POWER LINES DOWN.
                                          LARGE BRANCHES DOWN. POWER
                                          OUTAGES IN AND AROUND TOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

Local storm report, Jun 24, 10:57 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1057 PM CDT TUE JUN 24 2003

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

1012 PM    VALLEY CITY               ND   WIND DAMAGE
06/24/03   BARNES                         NUMEROUS POWER LINES DOWN.
                                          LARGE BRANCHES DOWN. POWER
                                          OUTAGES IN AND AROUND TOWN.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

WJB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:27 PM CDT	Severe Thunderstorm Warning	FGF	Norman	48 min
Jun 24, 8:33 PM CDT	Severe Thunderstorm Warning	FGF	Polk	42 min
Jun 24, 10:06 PM CDT	Flash Flood Warning	FGF	Grant	8 hr
Jun 24, 10:45 PM CDT	Flash Flood Warning	FGF	Wilkin	8 hr
Jun 24, 11:18 PM CDT	Severe Thunderstorm Warning	FGF	Norman	42 min
Jun 24, 11:55 PM CDT	Severe Thunderstorm Warning	FGF	Clay	50 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003 Every 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.