Alert archive / Montana / Special Weather Statements in 2021

Special Weather Statement, NWS Great Falls, MT

August 30, 20215 counties in Montana

NWS Great Falls, MT issued this special weather statement at Aug 30, 2021, 5:57 PM MDT for 5 counties in Montana. It was in force for 63 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
Aug 30, 2021, 5:57 PM MDT (23:57 UTC)
Expired
Aug 30, 2021, 7:00 PM MDT
In force
63 min
Issued by
NWS Great Falls, MT
Hail
0.00 in
Wind
55

Counties Broadwater County, MT, Cascade County, MT, Gallatin County, MT, Judith Basin County, MT, Meagher County, MT

The radar

The Great Falls radar (KTFX), 127 km from the middle of the area, began a volume at 23:55 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.

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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 Aug 30, 5:45 PM MDT, 12 minutes earlier.

Area forecast discussion, Aug 30, 5:45 PM MDT, 12 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

Local storm report, Aug 30, 5:31 PM MDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
531 PM MDT MON AUG 30 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0516 PM     TSTM WND GST     1 NE BELGRADE           45.79N 111.16W
08/30/2021  M78 MPH          GALLATIN           MT   ASOS

            GUST CAME FROM CONVECTIVE CLOUDS WITH NO
            LIGHTNING OBSERVED. KTFX/KBLX RADARS SHOWED
            ONLY 20 TO 25 DBZ ECHOES.

&&

MPJ
Special weather statement, Aug 30, 5:57 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Great Falls MT
557 PM MDT Mon Aug 30 2021

MTZ012-050-053>055-310100-
Broadwater MT-Cascade MT-Gallatin MT-Judith Basin MT-Meagher MT-
557 PM MDT Mon Aug 30 2021

...Showers and thunderstorms will impact portions of Broadwater,
Meagher, Judith Basin, Gallatin, and Cascade Counties through 700 PM
MDT...

At 553 PM MDT, Doppler radar was tracking a band of showers and
thunderstorms across portions of central and southwestern Montana.
Movement was northeast at 45 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4475 11137 4564 11135 4579 11180 4584 11166
      4657 11179 4679 11149 4720 11205 4751 11205
      4769 11099 4759 11105 4744 11076 4742 11022
      4718 10976 4670 10975 4672 11027 4618 11029
      4619 11078 4560 11080 4505 11115 4449 11111
TIME...MOT...LOC 2353Z 215DEG 37KT 4669 11133 4598 11052

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

mpj

Nearby

Special Weather Statements in Montana, 2021Every 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.