Alert archive / Montana / Mesoscale Discussions in 2007
Mesoscale Discussion 772
The Storm Prediction Center issued this mesoscale discussion at May 10, 2007, 4:59 PM MDT for 7 counties in Idaho; 27 counties in Montana; Baker County, Union County, Wallowa County, Oregon. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 10, 2007, 4:59 PM MDT (22:59 UTC)
- Expired
- May 10, 2007, 7:00 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 37 counties
Adams County, ID, Clearwater County, ID, Idaho County, ID, Lemhi County, ID, Lewis County, ID, Valley County, ID, Washington County, ID, Beaverhead County, MT, Broadwater County, MT, Carbon County, MT, Cascade County, MT, Chouteau County, MT, Deer Lodge County, MT, Fergus County, MT, Gallatin County, MT, Golden Valley County, MT, Granite County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Madison County, MT, Meagher County, MT, Missoula County, MT, Musselshell County, MT, Park County, MT, Pondera County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT, Stillwater County, MT, Sweet Grass County, MT, Teton County, MT, Wheatland County, MT, Yellowstone County, MT, Baker County, OR, Union County, OR, Wallowa County, OR
The radar
The Missoula radar (KMSX), 156 km from the middle of the area, began a volume at 23:01 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 12:00Z, 11.0 hours before the alert went out and 266 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
- 1438 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 95 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 10, 12:30 PM MDT | Mesoscale Discussion | SPC | Adams, Boise, Butte, Canyon, Clark, Custer and 10 more | 3 hr |
| May 10, 2:16 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Idaho, Lemhi, Valley, Washington | 7 hr |
| May 10, 3:59 PM MDT | Mesoscale Discussion | SPC | Big Horn, Custer, Powder River, Rosebud, Treasure | 2 hr |
Nearby
Mesoscale Discussions in Montana, 2007Mesoscale Discussions in Idaho, 2007Mesoscale Discussions in Oregon, 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.