Alert archive / North Dakota / Mesoscale Discussions in 2006
Mesoscale Discussion 951
The Storm Prediction Center issued this mesoscale discussion at May 23, 2006, 1:25 PM MDT for 5 counties in Montana; 45 counties in North Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 23, 2006, 1:25 PM MDT (19:25 UTC)
- Expired
- May 23, 2006, 3:30 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Dawson County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Wibaux County, MT, Barnes County, ND, Benson County, ND, Billings County, ND, Bottineau County, ND, Burke County, ND, Burleigh County, ND, Cass County, ND, Cavalier County, ND, Dickey County, ND, Divide County, ND, Dunn County, ND, Eddy County, ND, Foster County, ND, Golden Valley County, ND, Grand Forks County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh 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, Ransom County, ND, Renville County, ND, Rolette County, ND, Sargent County, ND, Sheridan County, ND, Stark County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Traill County, ND, Walsh County, ND, Ward County, ND, Wells County, ND, Williams County, ND
The radar
The Bismarck radar (KBIS), 97 km from the middle of the area, began a volume at 19:25 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 7.4 hours before the alert went out and 100 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
- 330 J/kg
- Mixed-layer CIN
- -421 J/kg
- Mixed-layer LCL
- 1542 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 6:27 PM MDT | Mesoscale Discussion | SPC | Flathead, Lincoln, Mineral, Sanders | 2 hr |
| May 23, 2:58 PM MDT | Severe Thunderstorm Watch | SPC | Custer, Daniels, Dawson, Fallon, Garfield, McCone and 6 more | 6 hr |
| May 23, 5:25 PM MDT | Mesoscale Discussion | SPC | Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 2 more | 2 hr |
| May 23, 4:51 AM MDT | Mesoscale Discussion | SPC | Cavalier, Ramsey, Towner | 84 min |
| May 23, 4:01 PM MDT | Mesoscale Discussion | SPC | Cass, Ransom, Richland, Traill | 119 min |
| May 23, 5:40 PM MDT | Severe Thunderstorm Watch | SPC | Cass, Ransom, Richland, Sargent | 6 hr |
Nearby
Mesoscale Discussions in North Dakota, 2006Mesoscale Discussions in Montana, 2006Every mesoscale discussion in 2006
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.