Alert archive / Montana / Mesoscale Discussions in 2007
Mesoscale Discussion 1167
The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2007, 6:02 PM MDT for 22 counties in Montana. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2007, 6:02 PM MDT (00:02 UTC)
- Expired
- Jun 16, 2007, 7:30 PM MDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 22 counties
Big Horn County, MT, Broadwater County, MT, Carbon County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Golden Valley County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Meagher County, MT, Musselshell County, MT, Park County, MT, Petroleum County, MT, Pondera County, MT, Stillwater County, MT, Sweet Grass County, MT, Teton County, MT, Wheatland County, MT, Yellowstone County, MT
The radar
The Great Falls radar (KTFX), 140 km from the middle of the area, began a volume at 00:01 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 nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 0.0 hours before the alert went out and 112 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
- 1243 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- 118 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 16, 6:59 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carter, Custer, Dawson, Fallon, Garfield and 9 more | 91 min |
| Jun 16, 8:06 PM MDT | Mesoscale Discussion | SPC | Richland, Wibaux | 54 min |
| Jun 16, 10:23 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carter, Custer, Dawson, Fallon, Garfield and 7 more | 97 min |
| Jun 17, 12:32 AM MDT | Mesoscale Discussion | SPC | Fergus, Garfield, McCone, Petroleum | 28 min |
| Jun 17, 12:53 AM MDT | Severe Thunderstorm Watch | SPC | Custer, Dawson, Fergus, Garfield, Golden Valley, Judith Basin and 9 more | 4 hr |
| Jun 17, 4:02 AM MDT | Mesoscale Discussion | SPC | Custer, Dawson, Fallon, Powder River, Prairie, Richland and 2 more | 58 min |
| Jun 17, 4:40 AM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Custer, Dawson, Fallon, Prairie, Richland and 3 more | 3 hr |
Nearby
Mesoscale Discussions in Montana, 2007Every mesoscale discussion 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.