Alert archive / Colorado / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 230, NWS Denver/Boulder, CO

August 20, 2019Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 20, 2019, 4:10 PM MDT for Weld County, Colorado. It was in force for 50 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, 2019, 4:10 PM MDT (22:10 UTC)
Expired
Aug 20, 2019, 5:00 PM MDT
In force
50 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Possible
Hail
1.5 in
Wind
70.0 mph

County Weld County, CO

The radar

The Cheyenne radar (KCYS), 75 km from the middle of the area, began a volume at 22:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 20, 3:03 PM MDTSevere Thunderstorm WatchSPC8 hr

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 3:09 PM MDTSpecial Weather StatementBOUWeld36 min
Aug 20, 3:24 PM MDTSevere Thunderstorm WarningBOUWeld51 min
Aug 20, 3:48 PM MDTSevere Thunderstorm WarningBOUWeld42 min
Aug 20, 4:42 PM MDTSevere Thunderstorm WarningBOUWeld48 min
Aug 20, 4:45 PM MDTSevere Thunderstorm WarningBOULincoln45 min
Aug 20, 5:02 PM MDTSevere Thunderstorm WarningBOUWeld28 min
Aug 20, 5:33 PM MDTSevere Thunderstorm WarningBOUWeld42 min
Aug 20, 5:54 PM MDTSevere Thunderstorm WarningBOUAdams, Weld51 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.