Alert archive / Montana / Special Weather Statements in 2021

Special Weather Statement, NWS Great Falls, MT

July 28, 2021Beaverhead County, Montana

NWS Great Falls, MT issued this special weather statement at Jul 28, 2021, 3:08 PM MDT for Beaverhead County, Montana. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 28, 2021, 3:08 PM MDT (21:08 UTC)
Expired: Jul 28, 2021, 3:45 PM MDT
In force: 37 min
Issued by: NWS Great Falls, MT

County Beaverhead County, MT

The radar

The Pocatello radar (KSFX), 169 km from the middle of the area, began a volume at 21:11 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 text

As transmitted.

<!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>

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 28, 1:58 PM MDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 28, 1:58 PM MDT, 1 hour 10 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 28, 10:35 AM MDT, 4 hours 33 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 28, 1:52 PM MDT, 1 hour 16 minutes before

Special Weather Statement
National Weather Service Great Falls MT
152 PM MDT Wed Jul 28 2021

MTZ008-282030-
Beaverhead-
152 PM MDT Wed Jul 28 2021

...A DEVELOPING THUNDERSTORM MAY IMPACT SOUTH CENTRAL BEAVERHEAD
COUNTY...

At 149 PM MDT, a thunderstorm was in the process of developing 15
miles northeast of Leadore, or 36 miles southwest of Dillon, moving
northeast at 15 mph.

Winds in excess of 40 mph are possible along with an occasional
lightning strike.

Locations impacted include...
Grant.

This includes Interstate 15 between mile markers 35 and 41.

LAT...LON 4470 11310 4476 11313 4477 11313 4478 11317
      4482 11323 4507 11306 4491 11274 4469 11308
TIME...MOT...LOC 1949Z 214DEG 12KT 4481 11309

HART

Special weather statement, Jul 28, 3:08 PM MDT, 0 minutes before

Special Weather Statement
National Weather Service Great Falls MT
308 PM MDT Wed Jul 28 2021

MTZ008-282145-
Beaverhead MT-
308 PM MDT Wed Jul 28 2021

...LIGHTNING STRIKES MAY IMPACT SOUTH CENTRAL BEAVERHEAD COUNTY
UNTIL 345 PM MDT...

At 306 PM MDT, Doppler radar was tracking mainly dry thunderstorms
located about 16 miles northeast of Gilmore, or 46 miles northwest
of Dubois, moving slowly north at 10 mph.

HAZARD...Winds in excess of 40 mph. Occasional lightning strikes.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This storm will remain over mainly rural areas of south central
Beaverhead County.

This includes Interstate 15 between mile markers 25 and 33.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 4445 11300 4450 11303 4452 11301 4455 11305
      4456 11304 4460 11308 4462 11305 4468 11307
      4477 11313 4482 11323 4490 11325 4484 11265
      4441 11291 4441 11294
TIME...MOT...LOC 2106Z 198DEG 10KT 4458 11298

HART

The office that day

Everything else NWS Great Falls, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 27, 6:14 PM MDT	Special Weather Statement	TFX	Glacier, Pondera	31 min
Jul 27, 6:23 PM MDT	Special Weather Statement	TFX	Teton	22 min
Jul 27, 6:53 PM MDT	Special Weather Statement	TFX	Teton	22 min
Jul 27, 9:02 PM MDT	Special Weather Statement	TFX	Glacier, Pondera	28 min
Jul 28, 1:52 PM MDT	Special Weather Statement	TFX	Beaverhead	38 min

Nearby

Special Weather Statements in Montana, 2021 Every special weather statement in 2021

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.