Alert archive / Wyoming / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 63, NWS Riverton, WY

July 15, 2025Natrona County, Wyoming

NWS Riverton, WY issued this severe thunderstorm warning at Jul 15, 2025, 7:30 PM MDT for Natrona County, Wyoming. It was in force for 45 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
Jul 15, 2025, 7:30 PM MDT (01:30 UTC)
Expired
Jul 15, 2025, 8:15 PM MDT
In force
45 min
Issued by
NWS Riverton, WY
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

County Natrona County, WY

The radar

The Riverton/Lander radar (KRIW), 137 km from the middle of the area, began a volume at 01:32 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 15, 4:32 PM MDTSevere Thunderstorm WatchSPC5 hr

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 15, 6:03 PM MDTSpecial Weather StatementRIWFremont27 min
Jul 15, 6:08 PM MDTSevere Thunderstorm WarningRIWFremont37 min
Jul 15, 6:09 PM MDTSpecial Weather StatementRIWBig Horn36 min
Jul 15, 6:16 PM MDTSevere Thunderstorm WarningRIWFremont29 min
Jul 15, 6:35 PM MDTSevere Thunderstorm WarningRIWFremont40 min
Jul 15, 6:46 PM MDTSevere Thunderstorm WarningRIWFremont, Natrona44 min
Jul 15, 6:57 PM MDTSevere Thunderstorm WarningRIWFremont, Natrona48 min
Jul 15, 7:13 PM MDTSpecial Weather StatementRIWFremont32 min
Jul 15, 7:27 PM MDTSevere Thunderstorm WarningRIWFremont13 min
Jul 15, 8:09 PM MDTSpecial Weather StatementRIWNatrona36 min
Jul 16, 1:56 PM MDTSpecial Weather StatementRIWSweetwater3 hr
Jul 16, 5:41 PM MDTSpecial Weather StatementRIW64 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2025Every severe thunderstorm warning in 2025

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.