Alert archive / Wyoming / Special Weather Statements in 2021

Special Weather Statement, NWS Riverton, WY

July 5, 2021Fremont County, Wyoming

NWS Riverton, WY issued this special weather statement at Jul 5, 2021, 4:58 PM MDT for Fremont County, Wyoming. It was in force for 32 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 5, 2021, 4:58 PM MDT (22:58 UTC)
Expired
Jul 5, 2021, 5:30 PM MDT
In force
32 min
Issued by
NWS Riverton, WY

County Fremont County, WY

The radar

The Riverton/Lander radar (KRIW), 21 km from the middle of the area, began a volume at 22:59 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 Riverton, WY wrote its last area forecast discussion before this special weather statement went out at Jul 5, 2:50 PM MDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 5, 2:50 PM MDT, 2 hours 8 minutes before
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  <title>Service Notice</title>
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</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.
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Hazardous weather outlook, Jul 5, 4:49 AM MDT, 12 hours 9 minutes before
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  <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.
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In the hours before

Special weather statement, Jul 5, 2:04 PM MDT, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Riverton WY
204 PM MDT Mon Jul 5 2021

WYZ012-013-024-052030-
Jackson Hole-Teton and Gros Ventre Mountains-Salt River and Wyoming
Ranges-
204 PM MDT Mon Jul 5 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN LINCOLN AND SOUTH
CENTRAL TETON COUNTIES UNTIL 230 PM MDT...

At 203 PM MDT, Doppler radar was tracking a strong thunderstorm near
Hoback, or 13 miles northeast of Alpine, moving east at 20 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Hoback around 220 PM MDT.

Other locations impacted by this storm include Hoback Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Brief heavy rainfall is also occurring with this storm.

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

&&

LAT...LON 4321 11087 4337 11087 4340 11055 4313 11058
TIME...MOT...LOC 2003Z 274DEG 15KT 4328 11082

Vorst
Special weather statement, Jul 5, 2:15 PM MDT, 2 hours 43 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 5, 3:26 PM MDT, 1 hour 32 minutes before
Special Weather Statement
National Weather Service Riverton WY
326 PM MDT Mon Jul 5 2021

WYZ023-024-052145-
Star Valley-Salt River and Wyoming Ranges-
326 PM MDT Mon Jul 5 2021

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL LINCOLN COUNTY UNTIL
345 PM MDT...

At 326 PM MDT, Doppler radar was tracking a strong thunderstorm over
Afton, moving east at 25 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Corral Creek Guard Station around 345 PM MDT.

Other locations impacted by this storm include Fairview, Afton
Municipal Airport and Lincoln County Fairgrounds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Brief heavy rainfall is also occurring with this storm.

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

&&

LAT...LON 4263 11097 4276 11102 4290 11067 4267 11058
TIME...MOT...LOC 2126Z 251DEG 20KT 4270 11091

Vorst
Special weather statement, Jul 5, 4:58 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Riverton WY
458 PM MDT Mon Jul 5 2021

WYZ015-017-018-052330-
Wind River Basin-Wind River Mountains East-Lander Foothills-
458 PM MDT Mon Jul 5 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL FREMONT COUNTY UNTIL 530
PM MDT...

At 456 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Diversion Dam Rest Area to near Fiddlers
Lake. Movement was northeast at 15 mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Strong thunderstorms will be near...
  Pilot Butte Reservoir around 525 PM MDT.
  Lander around 530 PM MDT.

Other locations impacted by these storms include Lander Hunt Field
and Sinks Canyon Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Brief heavy rainfall is also occurring with this storm.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 4331 10868 4271 10849 4264 10880 4321 10901
TIME...MOT...LOC 2256Z 213DEG 12KT 4319 10898 4266 10881

Vorst

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 6:06 PM MDTSpecial Weather StatementRIWPark24 min
Jul 4, 7:47 PM MDTSpecial Weather StatementRIWFremont28 min
Jul 4, 8:19 PM MDTSpecial Weather StatementRIWFremont26 min
Jul 5, 2:04 PM MDTSpecial Weather StatementRIW26 min
Jul 5, 2:15 PM MDTSpecial Weather StatementRIWTeton15 min
Jul 5, 3:26 PM MDTSpecial Weather StatementRIW19 min
Jul 5, 5:14 PM MDTSpecial Weather StatementRIWFremont31 min
Jul 5, 5:25 PM MDTSevere Thunderstorm WarningRIWFremont35 min

Nearby

Special Weather Statements in Wyoming, 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.