Alert archive / Montana / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 560
The Storm Prediction Center issued this severe thunderstorm watch at Jul 9, 2000, 5:30 PM MDT for 13 counties in Montana. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2000, 5:30 PM MDT (23:30 UTC)
- Expired
- Jul 9, 2000, 11:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
Counties Carter County, MT, Custer County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, McCone County, MT, Powder River County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Rosebud County, MT, Sheridan County, MT, Wibaux County, MT
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 5:47 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 58 min |
| Jul 9, 6:30 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 9, 6:31 PM MDT | Flash Flood Warning | GGW | McCone | 6 hr |
| Jul 9, 6:40 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 65 min |
| Jul 9, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Custer, Fallon | 65 min |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.5 hours before the alert went out and 184 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
- 1245 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 8:15 PM MDT | Severe Thunderstorm Watch | SPC | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 5 more | 6 hr |
| Jul 9, 2:00 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Blaine, Carbon, Fergus, Garfield, Golden Valley and 9 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Montana, 2000Every severe thunderstorm watch in 2000
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.