Alert archive / Montana / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 162
The Storm Prediction Center issued this severe thunderstorm watch at May 8, 2004, 1:35 PM MDT for 11 counties in Montana; 10 counties in North Dakota; 7 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 8, 2004, 1:35 PM MDT (19:35 UTC)
- Expired
- May 8, 2004, 7:00 PM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Carter County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, McCone County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Dunn County, ND, Golden Valley County, ND, Hettinger County, ND, McKenzie County, ND, Slope County, ND, Stark County, ND, Williams County, ND, Butte County, SD, Dewey County, SD, Harding County, SD, Meade County, SD, Perkins County, SD, Stanley County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 229 km from the middle of the area, began a volume at 19:37 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.
Warnings issued inside it
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 3:17 PM MDT | Severe Thunderstorm Warning | UNR | Butte | 43 min |
| May 8, 4:01 PM MDT | Severe Thunderstorm Warning | UNR | Butte | 44 min |
| May 8, 4:37 PM MDT | Severe Thunderstorm Warning | UNR | Meade | 53 min |
| May 8, 5:32 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 58 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 7.6 hours before the alert went out and 246 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
- 2223 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 274 m²/s²
- 0-3 km storm-relative helicity
- 317 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 11:44 AM MDT | Mesoscale Discussion | SPC | Carter, Custer, Daniels, Dawson, Fallon, Garfield and 8 more | 3 hr |
| May 8, 2:17 PM MDT | Mesoscale Discussion | SPC | Daniels, Dawson, McCone, Richland, Roosevelt, Sheridan and 1 more | 58 min |
| May 8, 4:11 PM MDT | Mesoscale Discussion | SPC | Carter, Daniels, Fallon, Richland, Roosevelt, Sheridan and 1 more | 64 min |
| May 8, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | Benson, Bottineau, Burke, Burleigh, Dickey, Emmons and 20 more | 4 hr |
| May 7, 6:34 PM MDT | Mesoscale Discussion | SPC | Butte, Lawrence, Meade | 86 min |
| May 7, 8:53 PM MDT | Mesoscale Discussion | SPC | Bon Homme, Clay, Lincoln, Minnehaha, Moody, Turner and 2 more | 97 min |
| May 7, 9:20 PM MDT | Severe Thunderstorm Watch | SPC | Bon Homme, Clay, Davison, Hanson, Hutchinson, Lincoln and 6 more | 6 hr |
| May 8, 1:27 PM MDT | Mesoscale Discussion | SPC | Union | 3 hr |
Nearby
Severe Thunderstorm Watches in Montana, 2004Severe Thunderstorm Watches in North Dakota, 2004Severe Thunderstorm Watches in South Dakota, 2004Every severe thunderstorm watch in 2004
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.