Alert archive / Colorado / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 257, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Sep 5, 2019, 9:41 PM MDT for Weld County, Colorado. It was in force for 34 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
- Sep 5, 2019, 9:41 PM MDT (03:41 UTC)
- Expired
- Sep 5, 2019, 10:15 PM MDT
- In force
- 34 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Weld County, CO
The radar
The Cheyenne radar (KCYS), 75 km from the middle of the area, began a volume at 03:40 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 Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 9:18 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 27 min |
| Sep 5, 9:44 PM MDT | Special Weather Statement | BOU | Weld | 46 min |
| Sep 5, 10:28 PM MDT | Special Weather Statement | BOU | Weld | 47 min |
| Sep 5, 10:50 PM MDT | Special Weather Statement | BOU | Morgan | 40 min |
| Sep 5, 11:27 PM MDT | Special Weather Statement | BOU | Morgan | 48 min |
| Sep 6, 1:40 PM MDT | Special Weather Statement | BOU | Gilpin | 50 min |
| Sep 6, 2:02 PM MDT | Severe Thunderstorm Warning | BOU | Clear Creek, Gilpin, Jefferson | 43 min |
| Sep 6, 2:09 PM MDT | Areal Flood Advisory | BOU | Larimer | 81 min |
| Sep 6, 2:44 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 46 min |
| Sep 6, 3:26 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Jefferson | 34 min |
| Sep 6, 3:42 PM MDT | Special Weather Statement | BOU | Douglas | 33 min |
| Sep 6, 3:59 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Douglas | 46 min |
| Sep 6, 4:01 PM MDT | Flash Flood Warning | BOU | Arapahoe, Douglas | 89 min |
| Sep 6, 4:10 PM MDT | Tornado Warning | BOU | Arapahoe | 21 min |
| Sep 6, 4:13 PM MDT | Areal Flood Advisory | BOU | Douglas, Jefferson | 92 min |
| Sep 6, 4:43 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe | 68 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2019Every severe thunderstorm warning in 2019
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.