Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 12, NWS Grand Forks, ND

May 29, 2003Beltrami County, Hubbard County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at May 29, 2003, 11:49 PM CDT for Beltrami County, Hubbard County, Minnesota. It was in force for 41 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
May 29, 2003, 11:49 PM CDT (04:49 UTC)
Expired
May 30, 2003, 12:30 AM CDT
In force
41 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

Counties Beltrami County, MN, Hubbard County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 187 km from the middle of the area, began a volume at 04:50 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.

IssuedProductOfficeLasted
May 29, 11:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 4.8 hours before the alert went out and 161 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 00:00Z on 2003-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 153 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2003-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
153 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
2268 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

576 
WUUS53 KFGF 300449
SVRFGF
MNC007-057-300530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1148 PM CDT THU MAY 29 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHEASTERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA AND
  NORTHEASTERN HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA.

* UNTIL 1230 AM CDT.

* AT 1145 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTH OF PUPOSKY...OR ABOUT 8 MILES
  NORTH OF BEMIDJI...MOVEMENT WAS TO THE SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  TURTLE RIVER AT 1155 PM...
  LAVINIA AT MIDNIGHT AND
  ROSBY AT 1210 AM.

DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND TORNADOES ARE ALL
POSSIBLE IN SEVERE THUNDERSTORMS. SEEK SHELTER IN A REINFORCED
BUILDING IMMEDIATELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM FRIDAY
MORNING FOR NORTHWESTERN MINNESOTA.

LAT...LON 4770 9494 4757 9512 4728 9468 4747 9449

$$
HOPPES

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 May 29, 9:00 PM CDT, 2 hours 49 minutes earlier.

Area forecast discussion, May 29, 9:00 PM CDT, 2 hours 49 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
900 PM CDT THU MAY 29 2003

MAIN FORECAST CHALLENGES FOR TONIGHT ARE PRECIPITATION AND WINDS.
CURRENT SATELLITE IMAGERY SHOWS MOSTLY MID TO HIGH CLOUDS OVER AREA.
LATEST MSAS SURFACE ANALYSIS HAS DRY LINE EXTENDING THROUGH AREA
ALONG A LANGDON-JMS-MBG LINE. ETA AND GFS SIMILAR. DRY LINE
CONTINUES MOVING E THROUGH AREA TONIGHT AS SURFACE LOW INTENSIFIES
AND DROPS INTO N MN. BY 12Z FRI...SURFACE LOW WELL E OF AREA INTO LK
SUPERIOR...WITH STRONG COLD AIR ADVECTION AND DRYING MOVING INTO
AREA BEHIND LOW. WITH WINDS UPSTREAM SUSTAINED AROUND 30 MPH AND
GUSTING TO AROUND 45 MPH...WILL ISSUE WIND ADVISORY FOR NE ND AND
PART OF NW MN FOR TONIGHT. LATER SHIFTS WILL NEED TO DETERMINE IF
ADVISORY SHOULD BE EXPANDED IN AREA OR LENGTH. IN ADDITION...CURRENT
CONVECTION IN N PART OF AREA HAS BEEN SLOWLY INTENSIFYING...WITH CAP
HOLDING SO FAR OVER S PART OF AREA WHICH HAS BETTER CAPES. SWOMCD
HAS CAPTURED SITUATION WELL. IN ANY REGARD...STORMS WILL NEED TO BE
CLOSELY MONITORED FOR THE NEXT FEW HOURS TO SEE IF ANY GO SEVERE.
ONLY AREA THAT CAN REMOVE POPS AT THIS TIME WILL BE DVL SET. MINOR
CHANGES REST OF FORECAST.

.FGF...WIND ADVISORY FOR PARTS NE ND AND NW MN TONIGHT.

NG
Hazardous weather outlook, May 29, 6:33 AM CDT, 17 hours 16 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-291430-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
633 AM CDT THU MAY 29 2003

...SEVERE THUNDERSTORMS POSSIBLE OVER EASTERN NORTH
DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA THIS AFTERNOON AND
EVENING...

.DAY ONE...TODAY AND TONIGHT
SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF EASTERN NORTH
DAKOTA...NORTHWEST AND WEST CENTRAL MINNESOTA. AFTER 3 PM
THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER NORTHEAST NORTH DAKOTA
AND NORTHWEST MINNESOTA SPREADING SOUTH AND EAST DURING THE EVENING.
THUNDERSTORMS SHOULD DIMINISH ACROSS EASTERN AND SOUTHERN PORTIONS
OF THE REGION AROUND MIDNIGHT. THE PRIMARY THREAT WILL BE LARGE HAIL
AND DAMAGING WINDS.

AN AREA OF LOW PRESSURE AND TRAILING COLD FRONT WILL MOVE ACROSS
EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA THIS AFTERNOON AND
EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

VOELKER

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 11:05 PM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater40 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.