Alert archive / Montana / Mesoscale Discussions in 2014
Mesoscale Discussion 795
The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2014, 12:51 PM MDT for 4 states. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Jun 3, 2014, 12:51 PM MDT (18:51 UTC)
- Expired
- Jun 3, 2014, 2:45 PM MDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
Counties Carter County, MT, Custer County, MT, Fallon County, MT, Powder River County, MT, Bowman County, ND, Butte County, SD, Harding County, SD, Crook County, WY
The radar
The Rapid City radar (KUDX), 220 km from the middle of the area, began a volume at 18:50 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
Rapid City, SD (KRAP), launched 12:00Z, 6.9 hours before the alert went out and 223 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
- 1105 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.3
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 3, 1:37 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Powder River | 6 hr |
| Jun 3, 1:40 PM MDT | Mesoscale Discussion | SPC | Blaine, Daniels, Dawson, Fergus, Garfield, McCone and 7 more | 2 hr |
| Jun 3, 5:40 PM MDT | Mesoscale Discussion | SPC | Carter, Powder River | 65 min |
| Jun 3, 2:02 AM MDT | Mesoscale Discussion | SPC | Bennett, Jackson, Jones, Mellette, Oglala Lakota, Pennington and 2 more | 118 min |
| Jun 3, 6:00 AM MDT | Mesoscale Discussion | SPC | Bennett, Jackson, Mellette, Oglala Lakota, Pennington, Todd and 1 more | 2 hr |
| Jun 3, 8:36 AM MDT | Severe Thunderstorm Watch | SPC | Aurora, Bennett, Brule, Buffalo, Charles Mix, Douglas and 16 more | 7 hr |
| Jun 3, 11:07 AM MDT | Mesoscale Discussion | SPC | Bon Homme, Charles Mix, Clay, Douglas, Gregory, Hutchinson and 2 more | 83 min |
| Jun 3, 12:20 PM MDT | Mesoscale Discussion | SPC | Fall River | 85 min |
Nearby
Mesoscale Discussions in Montana, 2014Mesoscale Discussions in South Dakota, 2014Mesoscale Discussions in North Dakota, 2014Every mesoscale discussion in 2014
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.