Alert archive / Montana / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 71, NWS Billings, MT
NWS Billings, MT issued this severe thunderstorm warning at Aug 20, 2020, 10:43 PM MDT for Custer County, Montana. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 20, 2020, 10:43 PM MDT (04:43 UTC)
- Expired
- Aug 20, 2020, 11:30 PM MDT
- In force
- 47 min
- Issued by
- NWS Billings, MT
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Custer County, MT
The radar
The Glasgow radar (KGGW), 231 km from the middle of the area, began a volume at 04:45 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.
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 6:15 PM MDT | Special Weather Statement | BYZ | Park | 30 min |
| Aug 20, 6:49 PM MDT | Special Weather Statement | BYZ | Sweet Grass | 41 min |
| Aug 20, 6:53 PM MDT | Special Weather Statement | BYZ | Park | 52 min |
| Aug 20, 7:31 PM MDT | Special Weather Statement | BYZ | Sweet Grass | 44 min |
| Aug 20, 8:04 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 26 min |
| Aug 20, 8:21 PM MDT | Special Weather Statement | BYZ | Yellowstone | 39 min |
| Aug 20, 8:57 PM MDT | Special Weather Statement | BYZ | Yellowstone | 63 min |
| Aug 20, 9:59 PM MDT | Special Weather Statement | BYZ | Big Horn, Treasure | 46 min |
| Aug 20, 10:09 PM MDT | Special Weather Statement | BYZ | Custer | 51 min |
| Aug 20, 10:50 PM MDT | Special Weather Statement | BYZ | Big Horn | 55 min |
| Aug 20, 11:20 PM MDT | Special Weather Statement | BYZ | Fallon | 70 min |
| Aug 21, 12:00 AM MDT | Special Weather Statement | BYZ | Powder River | 45 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2020Every severe thunderstorm warning in 2020
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.