Alert archive / Montana / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 138, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Sep 13, 2026, 9:02 PM MDT for Chouteau County, Fergus County, Montana. It was in force for 43 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
- Sep 13, 2026, 9:02 PM MDT (03:02 UTC)
- Expired
- Sep 13, 2026, 9:45 PM MDT
- In force
- 43 min
- Issued by
- NWS Great Falls, MT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Chouteau County, MT, Fergus County, MT
The radar
The Great Falls radar (KTFX), 118 km from the middle of the area, began a volume at 03:03 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 Great Falls, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 13, 5:30 PM MDT, 3 hours 32 minutes earlier.
Area forecast discussion, Sep 13, 5:30 PM MDT, 3 hours 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>In the hours before
Special weather statement, Sep 13, 8:13 PM MDT, 49 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, Sep 13, 8:23 PM MDT, 39 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, Sep 13, 8:35 PM MDT, 27 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, Sep 13, 8:57 PM MDT, 5 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>Local storm report, Sep 13, 8:58 PM MDT, 4 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>Local storm report, Sep 13, 9:01 PM MDT, 1 minute 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 Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 6:13 PM MDT | Special Weather Statement | TFX | Judith Basin | 47 min |
| Sep 13, 6:22 PM MDT | Special Weather Statement | TFX | Cascade | 38 min |
| Sep 13, 6:49 PM MDT | Special Weather Statement | TFX | Cascade | 41 min |
| Sep 13, 6:51 PM MDT | Special Weather Statement | TFX | Chouteau | 39 min |
| Sep 13, 7:37 PM MDT | Special Weather Statement | TFX | Cascade | 38 min |
| Sep 13, 8:13 PM MDT | Special Weather Statement | TFX | Chouteau | 47 min |
| Sep 13, 8:23 PM MDT | Special Weather Statement | TFX | Cascade | 37 min |
| Sep 13, 8:35 PM MDT | Special Weather Statement | TFX | Cascade | 40 min |
| Sep 13, 8:57 PM MDT | Special Weather Statement | TFX | Chouteau | 33 min |
| Sep 13, 9:11 PM MDT | Special Weather Statement | TFX | Judith Basin | 34 min |
| Sep 13, 9:28 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Judith Basin | 47 min |
| Sep 13, 9:32 PM MDT | Special Weather Statement | TFX | Cascade | 28 min |
| Sep 13, 9:39 PM MDT | Special Weather Statement | TFX | 51 min | |
| Sep 13, 10:04 PM MDT | Special Weather Statement | TFX | Judith Basin | 41 min |
| Sep 13, 10:18 PM MDT | Special Weather Statement | TFX | Chouteau | 42 min |
| Sep 13, 10:32 PM MDT | Special Weather Statement | TFX | Blaine | 43 min |
| Sep 13, 10:49 PM MDT | Special Weather Statement | TFX | Judith Basin | 41 min |
| Sep 13, 11:03 PM MDT | Special Weather Statement | TFX | 42 min | |
| Sep 13, 11:19 PM MDT | Special Weather Statement | TFX | Blaine | 41 min |
| Sep 13, 11:22 PM MDT | Special Weather Statement | TFX | Fergus | 38 min |
| Sep 13, 11:49 PM MDT | Special Weather Statement | TFX | Blaine | 41 min |
| Sep 13, 11:52 PM MDT | High Wind Warning | TFX | Fergus, Judith Basin | 18 hr |
| Sep 14, 12:19 AM MDT | Special Weather Statement | TFX | Blaine | 26 min |
| Sep 14, 12:27 AM MDT | Special Weather Statement | TFX | Blaine | 33 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2026Every severe thunderstorm 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.