Alert archive / North Dakota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 39, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 11, 2004, 10:44 PM CDT for Traill County, North Dakota. It was in force for 61 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 11, 2004, 10:44 PM CDT (03:44 UTC)
- Expired
- May 11, 2004, 11:45 PM CDT
- In force
- 61 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 8 km from the middle of the area, began a volume at 03:47 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 11, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.7 hours before the alert went out and 275 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
- 10 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 500 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
264 WUUS53 KFGF 120344 SVRFGF NDC097-120445- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1044 PM CDT TUE MAY 11 2004 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TRAILL COUNTY IN SOUTHEAST NORTH DAKOTA * UNTIL 1145 PM CDT. * AT 1034 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF ROSEVILLE...OR ABOUT 36 MILES SOUTH OF GRAND FORKS...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. GOLF BALL SIZE HAIL HAS BEEN REPORTED WITH THESE STORMS. * THE SEVERE THUNDERSTORM WILL BE NEAR... HILLSBORO AT 1050 PM... CUMMINGS AT 1105 PM AND BUXTON AT 1115 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4762 9744 4730 9742 4729 9689 4765 9694 $$ JCA
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:44 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 46 min |
| May 11, 8:13 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 47 min |
| May 11, 8:19 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 56 min |
| May 11, 8:32 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 58 min |
| May 11, 9:04 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 41 min |
| May 11, 9:15 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 45 min |
| May 11, 9:30 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 45 min |
| May 11, 9:40 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom, Sargent | 35 min |
| May 11, 9:44 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 61 min |
| May 11, 9:57 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 48 min |
| May 11, 10:31 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 44 min |
| May 11, 10:38 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 37 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 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.