Alert archive / North Dakota / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 449
The Storm Prediction Center issued this severe thunderstorm watch at Jun 24, 2007, 10:36 PM MDT for 13 counties in Montana; 37 counties in North Dakota. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 24, 2007, 10:36 PM MDT (04:36 UTC)
- Expired
- Jun 25, 2007, 5:54 AM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 70 kt
All 50 counties
Custer County, MT, Dawson County, MT, Fallon County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Rosebud County, MT, Valley County, MT, Wibaux County, MT, Benson County, ND, Billings County, ND, Bottineau County, ND, Burleigh County, ND, Cavalier County, ND, Dunn County, ND, Eddy County, ND, Foster County, ND, Golden Valley County, ND, Grand Forks County, ND, Grant County, ND, Griggs County, ND, Hettinger County, ND, Kidder County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Nelson County, ND, Oliver County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Slope County, ND, Stark County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Walsh County, ND, Ward County, ND, Wells County, ND, Williams County, ND
The radar
The Glasgow radar (KGGW), 215 km from the middle of the area, began a volume at 04:37 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 10:36 PM MDT | Severe Thunderstorm Warning | BIS | McHenry | 24 min |
| Jun 24, 10:52 PM MDT | Severe Thunderstorm Warning | BIS | Rolette | 23 min |
| Jun 24, 10:57 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Garfield, McCone, Prairie, Roosevelt, Valley | 63 min |
| Jun 24, 10:58 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jun 24, 11:13 PM MDT | Severe Thunderstorm Warning | BIS | Rolette | 47 min |
| Jun 24, 11:16 PM MDT | Severe Thunderstorm Warning | BIS | Bottineau | 59 min |
| Jun 24, 11:24 PM MDT | Tornado Warning | BIS | Bottineau | 36 min |
| Jun 24, 11:28 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 62 min |
| Jun 24, 11:33 PM MDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 57 min |
| Jun 24, 11:37 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips | 53 min |
| Jun 24, 11:39 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland, Roosevelt, Sheridan | 66 min |
| Jun 24, 11:45 PM MDT | Severe Thunderstorm Warning | BIS | Williams | 45 min |
| Jun 24, 11:56 PM MDT | Tornado Warning | BIS | Burke, Mountrail, Ward | 34 min |
| Jun 25, 12:07 AM MDT | Severe Thunderstorm Warning | FGF | Towner | 53 min |
| Jun 25, 12:14 AM MDT | Flash Flood Warning | GGW | Dawson, Richland | 3 hr |
| Jun 25, 12:27 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, Phillips, Valley | 63 min |
| Jun 25, 12:29 AM MDT | Severe Thunderstorm Warning | BIS | Williams | 61 min |
| Jun 25, 12:29 AM MDT | Tornado Warning | BIS | Burke, Ward | 31 min |
| Jun 25, 12:36 AM MDT | Severe Thunderstorm Warning | BIS | Bottineau | 54 min |
| Jun 25, 12:36 AM MDT | Severe Thunderstorm Warning | BIS | Renville | 39 min |
| Jun 25, 12:38 AM MDT | Severe Thunderstorm Warning | BIS | Rolette | 48 min |
| Jun 25, 12:44 AM MDT | Severe Thunderstorm Warning | BIS | Renville | 46 min |
| Jun 25, 1:00 AM MDT | Severe Thunderstorm Warning | FGF | Towner | 45 min |
| Jun 25, 1:29 AM MDT | Flash Flood Warning | FGF | Towner | 10 hr |
| Jun 25, 1:31 AM MDT | Severe Thunderstorm Warning | BIS | Bottineau | 44 min |
| Jun 25, 2:16 AM MDT | Severe Thunderstorm Warning | BIS | Bottineau | 59 min |
| Jun 25, 3:45 AM MDT | Severe Thunderstorm Warning | FGF | Towner | 45 min |
| Jun 25, 4:15 AM MDT | Severe Thunderstorm Warning | FGF | Cavalier | 60 min |
| Jun 25, 5:16 AM MDT | Severe Thunderstorm Warning | FGF | Cavalier | 39 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
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.6 hours before the alert went out and 214 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2580 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 6:48 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carbon, Carter, Custer, Dawson, Fallon and 14 more | 87 min |
| Jun 24, 9:47 PM MDT | Mesoscale Discussion | SPC | Carter, Custer, Dawson, Fallon, Fergus, Garfield and 8 more | 58 min |
| Jun 25, 9:12 AM MDT | Mesoscale Discussion | SPC | Daniels, Phillips, Sheridan, Valley | 93 min |
| Jun 25, 4:48 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Custer, Fallon, Powder River | 8 hr |
| Jun 24, 6:11 PM MDT | Mesoscale Discussion | SPC | Adams | 2 hr |
| Jun 24, 6:30 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bowman, Golden Valley, Grant, Hettinger and 3 more | 4 hr |
| Jun 24, 7:11 PM MDT | Mesoscale Discussion | SPC | Benson, Burleigh, Cavalier, Eddy, McHenry, McLean and 10 more | 64 min |
| Jun 24, 8:30 PM MDT | Mesoscale Discussion | SPC | Adams, Grant, Hettinger, Sioux, Stark | 90 min |
| Jun 25, 2:31 AM MDT | Mesoscale Discussion | SPC | Bottineau, Cavalier, Dunn, McHenry, McLean, Mountrail and 6 more | 89 min |
| Jun 25, 2:59 PM MDT | Mesoscale Discussion | SPC | Burleigh, Emmons, Grant, Kidder, Logan, Morton and 4 more | 91 min |
| Jun 25, 5:57 PM MDT | Mesoscale Discussion | SPC | Benson, Cavalier, Eddy, Nelson, Pembina, Ramsey and 3 more | 2 hr |
Nearby
Severe Thunderstorm Watches in North Dakota, 2007Severe Thunderstorm Watches in Montana, 2007Every severe thunderstorm watch in 2007
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.