Alert archive / Montana / Special Weather Statements in 2021

Special Weather Statement, NWS Great Falls, MT

February 7, 2021Madison County, Montana

NWS Great Falls, MT issued this special weather statement at Feb 7, 2021, 10:32 AM MST for Madison County, Montana. It was in force for 58 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: Feb 7, 2021, 10:32 AM MST (17:32 UTC)
Expired: Feb 7, 2021, 11:30 AM MST
In force: 58 min
Issued by: NWS Great Falls, MT

County Madison County, MT

The radar

The Great Falls radar (KTFX), 245 km from the middle of the area, began a volume at 17:35 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 Feb 7, 8:43 AM MST, 1 hour 49 minutes earlier.

Area forecast discussion, Feb 7, 8:43 AM MST, 1 hour 49 minutes before

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In the hours before

Local storm report, Feb 7, 9:25 AM MST, 1 hour 7 minutes before

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Local storm report, Feb 7, 9:36 AM MST, 56 minutes before

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      <p id="message2">
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Special weather statement, Feb 7, 9:38 AM MST, 54 minutes before

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      <p id="message2">
        Please try again in a few minutes.
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Local storm report, Feb 7, 9:50 AM MST, 42 minutes before

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<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">
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Feb 7, 10:10 AM MST, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
1010 AM MST SUN FEB 7 2021

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

0930 AM     SNOW             PONY                    45.66N 111.89W
02/07/2021  E4.0 INCH        MADISON            MT   PUBLIC

            ABOUT 4 INCHES NEW SNOW TODAY. LOCATION
            ESTIMATED. SOCIAL MEDIA REPORT.

&&

Special weather statement, Feb 7, 10:32 AM MST, 0 minutes before

Special Weather Statement
National Weather Service Great Falls MT
1032 AM MST Sun Feb 7 2021

MTZ008-015-055-071830-
Madison-Beaverhead-Gallatin-
1032 AM MST Sun Feb 7 2021

...AN AREA OF HEAVY SNOW WILL AFFECT CENTRAL MADISON...NORTH CENTRAL
BEAVERHEAD AND CENTRAL GALLATIN COUNTIES...

At 1031 AM MST, an area of heavy snow was located 15 miles north of
Dillon, moving southeast at 10 mph.

Locations impacted include...
Sheridan, Virginia City, Ennis, Twin Bridges, Alder, Big Sky,
Jeffers, Laurin, Cameron and Glen.

This includes the following highways...
 Interstate 15 between mile markers 73  and 91 .
 Highway 191 between mile markers 31 and 50.
 Highway 287 between mile markers 27 and 53.

Visibilities will drop quickly to less than a quarter of a mile in
this area of heavy snow.

LAT...LON 4560 11257 4525 11104 4508 11104 4511 11110
      4505 11115 4501 11110 4488 11110 4552 11329
      4567 11334
TIME...MOT...LOC 1731Z 328DEG 12KT 4545 11264

PN

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 7, 3:06 AM MST	Wind Chill Advisory	TFX		3 days
Feb 7, 8:34 AM MST	Winter Weather Advisory	TFX		18 hr
Feb 7, 9:38 AM MST	Special Weather Statement	TFX	Madison	52 min
Feb 7, 1:56 PM MST	Winter Weather Advisory	TFX		13 hr

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.