Alert archive / Montana / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 553
The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 2003, 3:30 PM MDT for 21 counties in Montana. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2003, 3:30 PM MDT (21:30 UTC)
- Expired
- Jun 20, 2003, 11:00 PM MDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
All 21 counties
Big Horn County, MT, Carter County, MT, Custer County, MT, Daniels County, MT, Dawson County, MT, Fallon County, MT, Garfield County, MT, McCone County, MT, Musselshell County, MT, Petroleum County, MT, Phillips County, MT, Powder River 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
The radar
The Glasgow radar (KGGW), 111 km from the middle of the area, began a volume at 21:32 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
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 4:07 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 53 min |
| Jun 20, 4:09 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 66 min |
| Jun 20, 4:17 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 58 min |
| Jun 20, 4:58 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jun 20, 4:59 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum, Phillips | 61 min |
| Jun 20, 5:13 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jun 20, 5:16 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 59 min |
| Jun 20, 6:06 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 54 min |
| Jun 20, 6:25 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 65 min |
| Jun 20, 7:20 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 25 min |
| Jun 20, 7:49 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 26 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 11:36 AM MDT | Mesoscale Discussion | SPC | Blaine, Broadwater, Carbon, Cascade, Chouteau, Fergus and 17 more | 114 min |
| Jun 20, 12:05 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Carbon, Cascade, Chouteau, Fergus and 12 more | 8 hr |
| Jun 20, 2:39 PM MDT | Mesoscale Discussion | SPC | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 9 more | 96 min |
| Jun 20, 3:25 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carter, Custer, Daniels, Dawson, Fallon and 15 more | 65 min |
| Jun 20, 4:43 PM MDT | Mesoscale Discussion | SPC | Big Horn, Blaine, Carter, Custer, Daniels, Dawson and 16 more | 62 min |
Nearby
Severe Thunderstorm Watches in Montana, 2003Every severe thunderstorm watch in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.