Alert archive / Montana / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 382
The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2001, 11:45 AM MDT for 16 counties in Montana; 16 counties in North Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2001, 11:45 AM MDT (17:45 UTC)
- Expired
- Jun 9, 2001, 6:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Custer County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, Garfield County, MT, McCone County, MT, Musselshell County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Rosebud County, MT, Sheridan County, MT, Treasure County, MT, Valley County, MT, Wibaux County, MT, Yellowstone County, MT, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, Hettinger County, ND, McKenzie County, ND, Mercer County, ND, Mountrail County, ND, Renville County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 12:28 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 62 min |
| Jun 9, 1:53 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 37 min |
| Jun 9, 2:19 PM MDT | Severe Thunderstorm Warning | BIS | Divide | 61 min |
| Jun 9, 2:24 PM MDT | Severe Thunderstorm Warning | BIS | Billings | 36 min |
| Jun 9, 2:39 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 36 min |
| Jun 9, 2:41 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 64 min |
| Jun 9, 3:28 PM MDT | Severe Thunderstorm Warning | BIS | Mercer | 62 min |
| Jun 9, 3:40 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 35 min |
| Jun 9, 3:45 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 30 min |
| Jun 9, 3:52 PM MDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 53 min |
| Jun 9, 3:57 PM MDT | Tornado Warning | BIS | Mercer, Oliver | 33 min |
| Jun 9, 4:49 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 56 min |
| Jun 9, 5:30 PM MDT | Severe Thunderstorm Warning | BIS | Stark | 60 min |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 5.8 hours before the alert went out and 142 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
- 37 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 1810 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Jun 8, 8:15 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Powder River, Rosebud, Treasure, Yellowstone | 5 hr |
| Jun 9, 2:45 PM MDT | Tornado Watch | SPC | Big Horn, Carter, Powder River | 7 hr |
| Jun 9, 2:45 PM MDT | Tornado Watch | SPC | Custer, Dawson, Fallon, Garfield, McCone, Prairie and 4 more | 7 hr |
| Jun 9, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | Benson, Bottineau, Burke, Cavalier, Divide, Grand Forks and 12 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Montana, 2001Severe Thunderstorm Watches in North Dakota, 2001Every severe thunderstorm watch in 2001
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.