Alert archive / Montana / Mesoscale Discussions in 2005
Mesoscale Discussion 1746
The Storm Prediction Center issued this mesoscale discussion at Jul 13, 2005, 7:44 PM MDT for 24 counties in Montana; 8 counties in North Dakota. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2005, 7:44 PM MDT (01:44 UTC)
- Expired
- Jul 13, 2005, 9:15 PM MDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 32 counties
Custer County, MT, Dawson County, MT, Fallon County, MT, Fergus County, MT, Gallatin County, MT, Garfield County, MT, Golden Valley County, MT, McCone County, MT, Musselshell County, MT, Park County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Rosebud County, MT, Sheridan County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Valley County, MT, Wheatland County, MT, Wibaux County, MT, Yellowstone County, MT, Billings County, ND, Burke County, ND, Divide County, ND, Golden Valley County, ND, McKenzie County, ND, Mountrail County, ND, Renville County, ND, Williams County, ND
The radar
The Glasgow radar (KGGW), 114 km from the middle of the area, began a volume at 01:47 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.7 hours before the alert went out and 116 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
- 708 J/kg
- Mixed-layer CIN
- -288 J/kg
- Mixed-layer LCL
- 2696 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 90 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 |
|---|---|---|---|---|
| Jul 13, 7:55 PM MDT | Severe Thunderstorm Watch | SPC | Dawson, Prairie, Richland, Roosevelt, Sheridan, Wibaux | 3 hr |
| Jul 13, 9:55 PM MDT | Mesoscale Discussion | SPC | Daniels, Dawson, Garfield, McCone, Prairie, Richland and 3 more | 65 min |
| Jul 14, 1:44 PM MDT | Mesoscale Discussion | SPC | Barnes, Benson, Burleigh, Cass, Cavalier, Dickey and 22 more | 61 min |
| Jul 14, 2:40 PM MDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Eddy, Foster, Grand Forks, Griggs and 8 more | 6 hr |
| Jul 14, 5:27 PM MDT | Mesoscale Discussion | SPC | Barnes, Cass, Eddy, Foster, Grand Forks, Griggs and 8 more | 93 min |
Nearby
Mesoscale Discussions in Montana, 2005Mesoscale Discussions in North Dakota, 2005Every mesoscale discussion 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; radar from the NEXRAD Level II archive.