Alert archive / North Dakota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 21, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 11, 2004, 8:13 PM CDT for Barnes County, North Dakota. 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
- May 11, 2004, 8:13 PM CDT (01:13 UTC)
- Expired
- May 11, 2004, 9:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 90 km from the middle of the area, began a volume at 01:15 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, 1.2 hours before the alert went out and 183 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.
944 WUUS53 KFGF 120113 SVRFGF NDC003-120200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 814 PM CDT TUE MAY 11 2004 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA * UNTIL 900 PM CDT. * AT 811 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF LEAL...OR ABOUT 21 MILES NORTHWEST OF VALLEY CITY...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LEAL AT 820 PM... ROGERS AT 825 PM AND DAZEY AT 840 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4708 9857 4695 9838 4716 9787 4723 9830 $$ DK/TG
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, 8:19 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 |
| May 11, 10:44 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 61 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.