Flood Advisory — Johnson County, Wyoming
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 22 at 9:25PM MDT until August 22 at 9:30PM MDT by NWS Riverton WY
The Flood Advisory will expire at 930 PM MDT this evening for a portion of north central Wyoming, including the following area, Johnson. Flood waters have receded. The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures.
Effective August 22, 2026 at 11:25 PM ET · Expires August 22, 2026 at 11:35 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Riverton WY
Expires
August 22, 2026 at 11:35 PM ET
Last Checked
2 days ago
Other Active Alerts in Wyoming
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Flood Advisory
Flood Advisory
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Get Flood Advisory Alerts for Johnson County
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Frequently Asked Questions
What does a Flood Advisory mean for Johnson County, Wyoming?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (2 days ago). It's set to expire August 22, 2026 at 11:35 PM ET.
How do I get notified about Flood Advisory alerts for Johnson County?
Download StormCast free on Google Play and set Johnson County, Wyoming as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.