Alert archive / Montana / Mesoscale Discussions in 2013
Mesoscale Discussion 1034
The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2013, 4:06 PM MDT for 4 states. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2013, 4:06 PM MDT (22:06 UTC)
- Expired
- Jun 11, 2013, 5:30 PM MDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 30 counties
Big Horn County, MT, Carter County, MT, Custer County, MT, Garfield County, MT, Musselshell County, MT, Petroleum County, MT, Powder River County, MT, Rosebud County, MT, Treasure County, MT, Yellowstone County, MT, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Garden County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Custer County, SD, Fall River County, SD, Lawrence County, SD, Oglala Lakota County, SD, Pennington County, SD, Campbell County, WY, Crook County, WY, Johnson County, WY, Niobrara County, WY, Sheridan County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 197 km from the middle of the area, began a volume at 22:06 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 12:00Z, 10.1 hours before the alert went out and 456 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
- 2063 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 180 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 |
|---|---|---|---|---|
| Jun 11, 12:05 PM MDT | Mesoscale Discussion | SPC | Beaverhead, Big Horn, Carbon, Fergus, Gallatin, Garfield and 12 more | 85 min |
| Jun 11, 1:07 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carbon, Carter, Custer, Fallon, Garfield and 11 more | 8 hr |
| Jun 11, 3:03 PM MDT | Mesoscale Discussion | SPC | Dundy, Furnas, Hitchcock, Red Willow | 57 min |
Nearby
Mesoscale Discussions in Montana, 2013Mesoscale Discussions in Nebraska, 2013Mesoscale Discussions in Wyoming, 2013Every mesoscale discussion in 2013
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.