Alert archive / Montana / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 296
The Storm Prediction Center issued this severe thunderstorm watch at Jun 11, 2013, 1:07 PM MDT for 17 counties in Montana; 5 counties in Wyoming. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2013, 1:07 PM MDT (19:07 UTC)
- Expired
- Jun 11, 2013, 9:00 PM MDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 65 kt
All 22 counties
Big Horn County, MT, Carbon County, MT, Carter County, MT, Custer County, MT, Fallon County, MT, Garfield County, MT, Golden Valley County, MT, Musselshell County, MT, Petroleum County, MT, Powder River County, MT, Prairie 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, Johnson County, WY, Sheridan County, WY, Weston County, WY
The radar
The Billings radar (KBLX), 125 km from the middle of the area, began a volume at 19:06 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:31 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 59 min |
| Jun 11, 3:49 PM MDT | Flash Flood Warning | BYZ | Musselshell | 4 hr |
| Jun 11, 4:00 PM MDT | Flash Flood Warning | BYZ | Golden Valley | 3 hr |
| Jun 11, 4:07 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 53 min |
| Jun 11, 4:14 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 61 min |
| Jun 11, 4:14 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 61 min |
| Jun 11, 4:23 PM MDT | Flash Flood Warning | BYZ | Big Horn, Rosebud | 4 hr |
| Jun 11, 4:56 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 49 min |
| Jun 11, 5:11 PM MDT | Flash Flood Warning | BYZ | Sheridan | 3 hr |
| Jun 11, 6:14 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 61 min |
| Jun 11, 6:17 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 58 min |
| Jun 11, 7:11 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Crook, Weston | 64 min |
| Jun 11, 8:13 PM MDT | Flash Flood Warning | BYZ | Custer | 3 hr |
| Jun 11, 8:16 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 44 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 11, 12:05 PM MDT | Mesoscale Discussion | SPC | Beaverhead, Big Horn, Carbon, Fergus, Gallatin, Garfield and 12 more | 85 min |
| Jun 11, 4:06 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carter, Custer, Garfield, Musselshell, Petroleum and 4 more | 84 min |
Nearby
Severe Thunderstorm Watches in Montana, 2013Severe Thunderstorm Watches in Wyoming, 2013Every severe thunderstorm watch in 2013
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.