Alert archive / Montana / Mesoscale Discussions in 2016
Mesoscale Discussion 1616
The Storm Prediction Center issued this mesoscale discussion at Sep 1, 2016, 6:33 PM MDT for 21 counties in Montana; Campbell County, Crook County, Sheridan County, Wyoming. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2016, 6:33 PM MDT (00:33 UTC)
- Expired
- Sep 1, 2016, 8:30 PM MDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 24 counties
Big Horn County, MT, Blaine County, MT, Carbon County, MT, Chouteau County, MT, Custer County, MT, Fergus County, MT, Garfield County, MT, Golden Valley County, MT, Hill County, MT, Judith Basin County, MT, Liberty County, MT, Musselshell County, MT, Petroleum County, MT, Phillips County, MT, Powder River County, MT, Rosebud County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Wheatland County, MT, Yellowstone County, MT, Campbell County, WY, Crook County, WY, Sheridan County, WY
The radar
The Billings radar (KBLX), 99 km from the middle of the area, began a volume at 00:36 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
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 0.6 hours before the alert went out and 205 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
- 860 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 2855 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 4:16 PM MDT | Mesoscale Discussion | SPC | Carter, Fallon, Richland, Sheridan, Wibaux | 2 hr |
Nearby
Mesoscale Discussions in Montana, 2016Mesoscale Discussions in Wyoming, 2016Every mesoscale discussion in 2016
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.