Alert archive / Nevada / Special Weather Statements in 2021

Special Weather Statement, NWS Elko, NV

August 21, 2021

NWS Elko, NV issued this special weather statement at Aug 21, 2021, 3:05 PM PDT. It was in force for 25 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 21, 2021, 3:05 PM PDT (22:05 UTC)
Expired: Aug 21, 2021, 3:30 PM PDT
In force: 25 min
Issued by: NWS Elko, NV
Hail: 0.25 in
Wind: 40

The radar

The Elko radar (KLRX), 191 km from the middle of the area, began a volume at 22:05 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 10.1 hours before the alert went out and 244 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 77 J/kg
Mixed-layer CIN: -271 J/kg
Mixed-layer LCL: 2167 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 239 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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 Elko, NV wrote its last area forecast discussion before this special weather statement went out at Aug 21, 1:19 PM PDT, 1 hour 46 minutes earlier.

Area forecast discussion, Aug 21, 1:19 PM PDT, 1 hour 46 minutes before

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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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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.
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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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In the hours before

Special weather statement, Aug 21, 2:09 PM PDT, 56 minutes before

Special Weather Statement
National Weather Service Elko NV
209 PM PDT Sat Aug 21 2021

NVZ035-039-212200-
South Central Elko County NV-White Pine County NV-
209 PM PDT Sat Aug 21 2021

...A strong thunderstorm will impact portions of northwestern White
Pine and southeastern Elko Counties through 300 PM PDT...

At 208 PM PDT, Doppler radar was tracking a strong thunderstorm 15
miles west of Currie, moving northeast at 30 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Currie and Big Bald Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3980 11553 3984 11568 4009 11545 4070 11474
      4027 11446
TIME...MOT...LOC 2108Z 239DEG 49KT 4031 11504

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

87

Special weather statement, Aug 21, 3:05 PM PDT, 0 minutes before

Special Weather Statement
National Weather Service Elko NV
305 PM PDT Sat Aug 21 2021

NVZ033-035-039-212230-
Southeastern Elko County NV-South Central Elko County NV-
White Pine County NV-
305 PM PDT Sat Aug 21 2021

...A strong thunderstorm will impact portions of north central White
Pine and southeastern Elko Counties through 330 PM PDT...

At 304 PM PDT, Doppler radar was tracking a strong thunderstorm near
Currie, moving east at 35 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Currie, Lages Junction and White Horse Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3997 11496 4021 11506 4052 11431 4019 11410
TIME...MOT...LOC 2204Z 256DEG 58KT 4018 11478

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

87

The office that day

Everything else NWS Elko, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 21, 2:09 PM PDT	Special Weather Statement	LKN		51 min
Aug 21, 4:37 PM PDT	Special Weather Statement	LKN	White Pine	38 min

Nearby

Special Weather Statements in Nevada, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.