Alert archive / Wyoming / Flash Flood Warnings in 2026
Flash Flood Warning 1, NWS Riverton, WY
NWS Riverton, WY issued this flash flood warning at Jul 15, 2026, 10:37 PM MDT for Hot Springs County, Wyoming. It was in force for 3 hr. 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, 2026, 10:37 PM MDT (04:37 UTC)
- Expired
- Jul 16, 2026, 1:30 AM MDT
- In force
- 3 hr
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Flood severity
- None
County Hot Springs County, WY
The radar
The Riverton/Lander radar (KRIW), 73 km from the middle of the area, began a volume at 04:40 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.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this flash flood warning went out at Jul 15, 9:52 PM MDT, 45 minutes earlier.
Area forecast discussion, Jul 15, 9:52 PM MDT, 45 minutes before
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</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:08 PM MDT | Areal Flood Advisory | RIW | Big Horn | 3 hr |
| Jul 15, 6:14 PM MDT | Areal Flood Advisory | RIW | Hot Springs | 3 hr |
| Jul 15, 7:03 PM MDT | Areal Flood Advisory | RIW | Hot Springs | 3 hr |
| Jul 15, 7:11 PM MDT | Areal Flood Advisory | RIW | Hot Springs | 3 hr |
| Jul 16, 1:49 AM MDT | Flood Watch | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 3 more | 21 hr |
| Jul 16, 2:14 PM MDT | Areal Flood Advisory | RIW | Washakie | 3 hr |
| Jul 16, 2:57 PM MDT | Areal Flood Advisory | RIW | Hot Springs | 3 hr |
| Jul 16, 3:54 PM MDT | Areal Flood Advisory | RIW | Big Horn, Washakie | 3 hr |
| Jul 16, 4:28 PM MDT | Flash Flood Warning | RIW | Big Horn, Washakie | 3 hr |
| Jul 16, 4:34 PM MDT | Areal Flood Advisory | RIW | Big Horn | 3 hr |
| Jul 16, 5:06 PM MDT | Areal Flood Advisory | RIW | Hot Springs | 3 hr |
Nearby
Flash Flood Warnings in Wyoming, 2026Every flash flood warning in 2026
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.