Alert archive / Montana / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 53, NWS Great Falls, MT
NWS Great Falls, MT issued this severe thunderstorm warning at Jul 15, 2026, 7:43 PM MDT for Beaverhead County, Madison County, Montana. It was in force for 26 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, 2026, 7:43 PM MDT (01:43 UTC)
- Expired
- Jul 15, 2026, 8:09 PM MDT
- In force
- 26 min
- Issued by
- NWS Great Falls, MT
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Beaverhead County, MT, Madison County, MT
The radar
The Pocatello radar (KSFX), 236 km from the middle of the area, began a volume at 01:45 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 nearest sounding before it
Boise Airport, ID (KBOI), launched 00:00Z, 1.7 hours before the alert went out and 352 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 415 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 2860 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 Jul 15, 1:07 PM MDT, 6 hours 36 minutes earlier.
Area forecast discussion, Jul 15, 1:07 PM MDT, 6 hours 36 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, Jul 15, 2:09 PM MDT, 5 hours 34 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 Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 6:47 PM MDT | Special Weather Statement | TFX | Beaverhead | 43 min |
| Jul 15, 10:25 PM MDT | Special Weather Statement | TFX | Madison | 80 min |
| Jul 16, 1:01 PM MDT | Special Weather Statement | TFX | Silver Bow | 29 min |
| Jul 16, 1:40 PM MDT | Special Weather Statement | TFX | Judith Basin | 50 min |
| Jul 16, 1:54 PM MDT | Special Weather Statement | TFX | Beaverhead | 36 min |
| Jul 16, 2:01 PM MDT | Special Weather Statement | TFX | Silver Bow | 29 min |
| Jul 16, 2:10 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 35 min |
| Jul 16, 2:56 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 34 min |
| Jul 16, 3:23 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson, Lewis and Clark | 52 min |
| Jul 16, 3:26 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 64 min |
| Jul 16, 3:40 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 50 min |
| Jul 16, 3:55 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 36 min |
| Jul 16, 4:14 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson | 61 min |
| Jul 16, 4:25 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 65 min |
| Jul 16, 4:28 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 62 min |
| Jul 16, 4:29 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 61 min |
| Jul 16, 4:44 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 42 min |
| Jul 16, 5:02 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 58 min |
| Jul 16, 5:15 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 73 min |
| Jul 16, 5:23 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 36 min |
| Jul 16, 5:55 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Gallatin | 35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.