Alert archive / Nevada / Snow Squall Warnings in 2021

Snow Squall Warning 7, NWS Elko, NV

December 27, 2021Elko County, Eureka County, Lander County, Nevada

NWS Elko, NV issued this snow squall warning at Dec 27, 2021, 12:04 PM PST for Elko County, Eureka County, Lander County, Nevada. It was in force for 26 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
Dec 27, 2021, 12:04 PM PST (20:04 UTC)
Expired
Dec 27, 2021, 12:30 PM PST
In force
26 min
Issued by
NWS Elko, NV
Area
Storm-based polygon

Counties Elko County, NV, Eureka County, NV, Lander County, NV

The radar

The Elko radar (KLRX), 81 km from the middle of the area, began a volume at 20:08 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

Elko, NV (KLKN), launched 12:00Z, 8.1 hours before the alert went out and 144 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-pSkew-T log-p diagram, Elko, NV at 12:00Z on 2021-12-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 12:00Z on 2021-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 317 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1513 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
317 m²/s²
0-3 km storm-relative helicity
358 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

192 
WWUS55 KLKN 272004
SQWLKN

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Elko NV
1204 PM PST Mon Dec 27 2021

NVC007-011-015-272030-
/O.NEW.KLKN.SQ.W.0007.211227T2004Z-211227T2030Z/
Lander NV-Elko NV-Eureka NV-
1204 PM PST Mon Dec 27 2021

The National Weather Service in Elko Nevada has issued a

* Snow Squall Warning for...
  Northeastern Lander County in north central Nevada...
  South central Elko County in northeastern Nevada...
  Northwestern Eureka County in north central Nevada...

* Until 1230 PM PST.

* At 1203 PM PST, a dangerous snow squall was located along a line
  extending from 7 miles southwest of Deeth to near South Fork to 8
  miles southwest of Palisade to 16 miles southwest of Crescent
  Valley, moving southeast at 30 mph.

  HAZARD...Whiteout conditions. Zero visibility in snow and blowing 
           snow. Wind gusts greater than 30 mph.

  SOURCE...Radar indicated.

  IMPACT...Dangerous life-threatening travel.

* Areas include I-80 from Dunphy to west of Wells, NV-227 from Elko 
  to Spring Creek, NV-278 from Carlin to Pine Valley.

Locations impacted include...
Lamoille, South Fork, Ruby Valley, Pine Valley, Spring Creek, Mount
Tenabo, Emigrant Mine and Secret Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider avoiding or delaying travel until the snow squall passes
your location. If you must travel, use extra caution and allow extra
time. Rapid changes in visibility and slick road conditions may lead
to accidents.

Reduce your speed and turn on headlights! During snow squalls, the
visibility may suddenly drop to near zero in whiteout conditions.

&&

LAT...LON 4082 11510 4055 11561 4031 11611 4009 11666
      4029 11686 4050 11633 4076 11578 4102 11527
TIME...MOT...LOC 2003Z 325DEG 24KT 4097 11533 4074 11575 4050 11629
4030 11683

$$

91

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 11:37 AM PSTSnow Squall WarningLKNElko, Eureka, Lander23 min

Nearby

Snow Squall Warnings in Nevada, 2021Every snow squall warning 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.