Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 108, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 15, 2004, 1:57 PM CDT for Mahnomen County, Minnesota. It was in force for 48 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 15, 2004, 1:57 PM CDT (18:57 UTC)
- Expired
- Jul 15, 2004, 2:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Mahnomen County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 112 km from the middle of the area, began a volume at 18:57 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, 7.0 hours before the alert went out and 237 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.
- Mixed-layer CAPE
- 19 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1406 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 151857 SVRFGF MNC087-151945- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 157 PM CDT THU JUL 15 2004 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL MAHNOMEN COUNTY IN NORTHWEST MINNESOTA * UNTIL 245 PM CDT. * AT 153 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHEAST OF MAHNOMEN...OR ABOUT 37 MILES NORTH OF DETROIT LAKES...MOVING TO THE SOUTH AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WAUBUN AT 215 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4743 9583 4739 9605 4717 9602 4717 9564 $$ 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 15, 9:20 AM CDT, 4 hours 37 minutes earlier.
Area forecast discussion, Jul 15, 9:20 AM CDT, 4 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 920 AM CDT THU JUL 15 2004 .DISCUSSION... 14Z MSAS ANALYSIS DEPICTED TROUGH AXIS OVER CENTRAL NORTH DAKOTA WITH GOOD PRESSURE FALLS NOTED AHEAD OF FEATURE ACROSS EASTERN NORTH DAKOTA. LATEST WATER VAPOR IMAGERY INDICATED 100KT JET MAX AND ASSOCIATED VORTICITY MAXIMA DROPPING SOUTHEAST FROM MANITOBA PROVINCE WITH GOOD DARKENING NOTED ON IMAGERY. MAIN FORECAST CHALLENGE CONCERNS CONVECTIVE CHANCES THIS AFTERNOON. APPEARS CONDITIONS SETTING UP FOR CONVECTIVE EVENT THIS AFTERNOON AND EVENING AS UPPER LEVEL ENERGY INTERACTS WITH MODERATE INSTABILITY IN PLACE OVER REGION. EXPECT ACTIVITY TO FORM ALONG AND AHEAD OF EASTWARD ADVANCING SURFACE TROUGH WHERE LOW LEVEL CONVERGENCE WILL BE MAXIMIZED SEE SWODY1 FOR FURTHER DETAILS. FORECASTED SOUNDINGS HAVE CONVECTIVE TEMPERATURES IN THE LOW 80S WITH NO CIN SO THUNDERSTORM COMMENCEMENT SHOULD NOT BE A PROBLEM. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...NONE. MN...NONE. && BERG
Hazardous weather outlook, Jul 15, 6:28 AM CDT, 7 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 628 AM CDT THU JUL 15 2004 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-151430- BARNES-BENSON-CASS-CAVALIER-CLAY-EAST BECKER-EAST MARSHALL- EAST OTTER TAIL-EAST POLK-EASTERN WALSH COUNTY-EDDY-GRAND FORKS- GRANT-GRIGGS-HUBBARD-KITTSON-LAKE OF THE WOODS-MAHNOMEN-NELSON- NORMAN-NORTH BELTRAMI-NORTH CLEARWATER-PEMBINA-PENNINGTON-RAMSEY- RANSOM-RED LAKE-RICHLAND-ROSEAU-SARGENT-SOUTH BELTRAMI- SOUTH CLEARWATER-STEELE-TOWNER-TRAILL-WADENA-WEST BECKER- WEST MARSHALL-WEST OTTER TAIL-WEST POLK-WESTERN WALSH COUNTY-WILKIN- 628 AM CDT THU JUL 15 2004 ...SEVERE WEATHER POSSIBLE ACROSS EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWESTERN MINNESOTA THIS AFTERNOON AND EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA. .DAY ONE...TODAY AND TONIGHT A SLIGHT RISK OF SEVERE WEATHER...INCLUDING LARGE HAIL AND DAMAGING WINDS...IS POSSIBLE ACROSS EASTERN NORTH DAKOTA...WESTERN MINNESOTA AND NORTHWESTERN MINNESOTA THIS AFTERNOON AND EVENING. A FRONTAL SYSTEM WILL MOVE ACROSS THE REGION THIS AFTERNOON AND EARLY EVENING WHEN THE ATMOSPHERE WILL BE MOST UNSTABLE. SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF THIS FRONT AS IT MOVES THROUGH. AN ISOLATED TORNADO IS ALSO POSSIBLE EARLY IN THE EVENT WHEN DISCREET SUPERCELLS ARE MOST LIKELY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE DURING THE SUNDAY THROUGH TUESDAY PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FROM 1 PM TO 10 PM. FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT HTTP://WWW.CRH.NOAA.GOV/FGF/INDEX.HTML (ALL LOWER CASE) BRAMER
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 2:40 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 50 min |
| Jul 15, 4:55 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 50 min |
| Jul 15, 5:28 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 62 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2004Every severe thunderstorm warning in 2004
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.