Alert archive / North Dakota / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 641
The Storm Prediction Center issued this severe thunderstorm watch at Jul 16, 2005, 10:45 PM CDT for 23 counties in North Dakota. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 16, 2005, 10:45 PM CDT (03:45 UTC)
- Expired
- Jul 17, 2005, 2:04 AM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Benson County, ND, Billings County, ND, Cavalier County, ND, Dunn County, ND, Eddy County, ND, Golden Valley County, ND, Grand Forks County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Mountrail County, ND, Nelson County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Rolette County, ND, Sheridan County, ND, Towner County, ND, Walsh County, ND, Ward County, ND, Wells County, ND, Williams County, ND
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 10:46 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 59 min |
| Jul 16, 10:51 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 31 min |
| Jul 16, 10:56 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 34 min |
| Jul 16, 11:44 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 61 min |
| Jul 16, 11:45 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 43 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.8 hours before the alert went out and 157 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
- 2375 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 2709 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 348 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.7
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Bottineau, Burke, Divide, Dunn, McHenry, McKenzie and 10 more | 4 hr |
| Jul 16, 9:34 PM CDT | Mesoscale Discussion | SPC | Benson, Cavalier, Grand Forks, Nelson, Pembina, Ramsey and 1 more | 86 min |
| Jul 17, 1:10 AM CDT | Mesoscale Discussion | SPC | Adams, Billings, Bowman, Dunn, Golden Valley, Grant and 12 more | 65 min |
Nearby
Severe Thunderstorm Watches in North Dakota, 2005Every severe thunderstorm watch in 2005
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.