Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 173, NWS Grand Forks, ND

July 30, 2003Hubbard County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 30, 2003, 10:58 AM CDT for Hubbard County, Minnesota. It was in force for 47 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: Jul 30, 2003, 10:58 AM CDT (15:58 UTC)
Expired: Jul 30, 2003, 11:45 AM CDT
In force: 47 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Hubbard County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 183 km from the middle of the area, began a volume at 16:00 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

International Fa, MN (KINL), launched 12:00Z, 4.0 hours before the alert went out and 184 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: 535 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 538 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: -6 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.

071 
WUUS53 KFGF 301558
SVRFGF
MNC057-301645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1057 AM CDT WED JUL 30 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  NORTHERN HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA.

* UNTIL 1145 AM CDT.

* AT 1054 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES EAST OF BECIDA...OR ABOUT 10 MILES
  SOUTHWEST OF BEMIDJI...MOVEMENT WAS TO THE SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  NARY AT 1105 AM...
  KABEKONA AT 1115 AM...
  GUTHRIE AT 1120 AM AND
  LAPORTE AT 1130 AM.

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

LAT...LON 4741 9500 4729 9516 4711 9471 4739 9470

$$

VOELKER/04

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 Jul 30, 10:30 AM CDT, 28 minutes earlier.

Area forecast discussion, Jul 30, 10:30 AM CDT, 28 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1030 AM CDT WED JUL 30 2003

WATER VAPOR LOOP HAS CIRCULATION CENTER LOCATED OVER SOUTHERN
MANITOBA/ONTARIO BORDER MOVING SOUTHEAST. VORTICITY LBES WERE NOTED
OVER SOUTHERN MANITOBA AND NORTH OF THE CIRCULATIN CENTER.
CONVECTIVE TEMPERATURES RANGE FROM THE UPPER 60S IN THE NORTHEAST TO
80 IN THE SOUTHWEST THIS AFTERNOON. ETA MODEL SOUNDING CAPES WERE
PUSHING AROUND 800 J/KG IN THE NORTH, LESS ELSEWHERE. MODEL
SOUNDINGS INDICATE COLD AIR MOVING IN ALOFT ABOVE 650 HPA AND HIGH
MOISTURE IN THE LOWER LAYERS IS ALLOWING FOR HIGHER CAPES ACROSS THE
NORTH. ETA CROSS SECTION SHOWS COLD ADVECTION AT 700 HPA IS
DECREASING THE STABILITY IN ITS WAKE. WEAK SURFACE LOW WAS SOUTHEAST
OF GFK WITH A BOUNDARY EXTENDING TO THE EAST. WILL CHECK ZONES.

.FGF...NONE.

HOPPES

Hazardous weather outlook, Jul 30, 6:50 AM CDT, 4 hours 8 minutes before

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-301430-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
650 AM CDT WED JUL 30 2003

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 FOR THE PORTION
OF NORTHWEST AND WESTCENTRAL MINNESOTA JUST EAST OF THE RED RIVER
VALLEY BEGINNING IN EARLY AFTERNOON AND CONTINUING INTO EARLY
EVENING. ISOLATED SEVERE THUNDERSTORMS ARE ALSO EXPECTED OVER THE
NORTH PORTION OF THE RED RIVER VALLEY. ONE CAN EXPECT MAINLY LARGE
HAIL AND A FEW DOWNBURSTS CAUSING HIGH WIND IN THESE THUNDERSTORMS
DUE TO A COLD UPPER LEVEL LOW PRESSURE SYSTEM MOVING SOUTH FROM
MANITOBA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A CONTINUED CHANCE OF THUNDERSTORMS THROUGHOUT THE
REGION...MAINLY ON THURSDAY AFTERNOON AND EVENING...AND THEY
MAY DEVELOP AGAIN OVER THE MINNESOTA PORTION ON FRIDAY. THE NEXT
CHANCE OF THUNDERSTORMS WILL BE IN AND WESTWARD FROM THE RED
RIVER VALLEY ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

GV

In the hours before

Local storm report, Jul 30, 10:16 AM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1016 AM CDT WED JUL 30 2003

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

0600 PM    10 S ZERKEL               MN   1.00 INCH HAIL
07/29/03   CLEARWATER

0629 PM    15 NW BEMIDJI             MN   .75 INCH HAIL
07/29/03   BELTRAMI                       LARGE HAIL FOR 3 MINUTES

0657 PM    BLACKDUCK                 MN   70 MPH WIND GUST
07/29/03   BELTRAMI                       REPORTED BY TRAINED
                                          SPOTTER.

0707 PM    BENEDICT                  MN   1.00 INCH HAIL
07/29/03   HUBBARD                        REPORTED BY TRAINED
                                          SPOTTER.

GJG

Local storm report, Jul 30, 10:41 AM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
1041 AM CDT WED JUL 30 2003

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

1025 AM    5.5 S SHEVLIN             MN   .75 INCH HAIL
07/30/03   CLEARWATER

GJG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 7:16 PM CDT	Severe Thunderstorm Warning	FGF	Hubbard	44 min
Jul 30, 10:19 AM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater	41 min
Jul 30, 6:17 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	28 min
Jul 30, 6:44 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	46 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.