Alert archive / Wyoming / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 92, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jul 30, 2025, 4:37 PM MDT for Hot Springs County, Wyoming. It was in force for 23 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 30, 2025, 4:37 PM MDT (22:37 UTC)
- Expired
- Jul 30, 2025, 5:00 PM MDT
- In force
- 23 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Hot Springs County, WY
The radar
The Riverton/Lander radar (KRIW), 73 km from the middle of the area, began a volume at 22:36 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 severe thunderstorm 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 severe thunderstorm warning went out at Jul 30, 12:16 PM MDT, 4 hours 21 minutes earlier.
Area forecast discussion, Jul 30, 12:16 PM MDT, 4 hours 21 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 30, 3:08 AM MDT, 13 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 308 AM MDT Wed Jul 30 2025 WYZ001>020-022>030-311315- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin- Owl Creek and Bridger Mountains-Bighorn Mountains West- Bighorn Mountains Southeast-Northeast Johnson County- Southeast Johnson County-Teton and Gros Ventre Mountains- Jackson Hole-Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- 308 AM MDT Wed Jul 30 2025 This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Showers and thunderstorms are expected to develop throughout the day today. By the afternoon these showers and thunderstorms will spread east of the Divide. Daytime heating and above normal moisture will be capable of fueling the development of a few strong to severe storms. The main hazards as a result of any strong to severe storms will be large hail, strong gusty winds, and heavy downpours. Isolated flash flooding will be possible with any showers or storms. Showers and storms will start to gradually dissipate by the late evening into the early morning hours Thursday. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thursday through Monday...Daily chances for afternoon showers and thunderstorms. The best chances will remain over central and northern WY with lesser chances elsewhere. Periodic heavy downpours will be possible with any showers or thunderstorms that develop. Precipitation chances will decrease through the weekend becoming more focus across northern WY. Low min RH and breezy winds will develop across southern WY. This may lead to elevated or near critical fire weather conditions through the weekend. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
In the hours before
Special weather statement, Jul 30, 3:11 PM MDT, 1 hour 26 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 30, 3:44 PM MDT, 53 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 30, 3:53 PM MDT, 44 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 30, 4:05 PM MDT, 32 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 30, 4:21 PM MDT, 16 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 30, 4:30 PM MDT, 7 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:12 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 48 min |
| Jul 29, 6:16 PM MDT | Special Weather Statement | RIW | 44 min | |
| Jul 29, 6:38 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 15 min |
| Jul 29, 6:45 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 30 min |
| Jul 29, 7:10 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 35 min |
| Jul 29, 7:22 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 23 min |
| Jul 29, 7:42 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 11 min |
| Jul 30, 4:02 AM MDT | Special Weather Statement | RIW | Hot Springs | 28 min |
| Jul 30, 4:31 AM MDT | Special Weather Statement | RIW | Washakie | 29 min |
| Jul 30, 4:57 AM MDT | Special Weather Statement | RIW | Big Horn | 33 min |
| Jul 30, 2:49 PM MDT | Special Weather Statement | RIW | Park | 26 min |
| Jul 30, 3:11 PM MDT | Special Weather Statement | RIW | Hot Springs | 49 min |
| Jul 30, 3:44 PM MDT | Special Weather Statement | RIW | Hot Springs | 31 min |
| Jul 30, 3:53 PM MDT | Special Weather Statement | RIW | Park | 37 min |
| Jul 30, 4:05 PM MDT | Special Weather Statement | RIW | Hot Springs | 25 min |
| Jul 30, 4:10 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 35 min |
| Jul 30, 4:21 PM MDT | Special Weather Statement | RIW | Hot Springs | 24 min |
| Jul 30, 4:30 PM MDT | Special Weather Statement | RIW | Park | 30 min |
| Jul 30, 4:43 PM MDT | Special Weather Statement | RIW | Teton | 32 min |
| Jul 30, 4:45 PM MDT | Special Weather Statement | RIW | Hot Springs | 30 min |
| Jul 30, 4:51 PM MDT | Special Weather Statement | RIW | Park | 24 min |
| Jul 30, 4:54 PM MDT | Special Weather Statement | RIW | Washakie | 36 min |
| Jul 30, 4:56 PM MDT | Special Weather Statement | RIW | Uinta | 34 min |
| Jul 30, 5:23 PM MDT | Special Weather Statement | RIW | Washakie | 37 min |
| Jul 30, 5:38 PM MDT | Special Weather Statement | RIW | 37 min | |
| Jul 30, 5:39 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn, Washakie | 36 min |
| Jul 30, 5:40 PM MDT | Special Weather Statement | RIW | Natrona | 35 min |
| Jul 30, 5:50 PM MDT | Special Weather Statement | RIW | Big Horn | 55 min |
| Jul 30, 5:53 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 52 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.