Alert archive / Nevada / Snow Squall Warnings in 2021

Snow Squall Warning 5, NWS Elko, NV

December 24, 2021Elko County, Humboldt County, Nevada

NWS Elko, NV issued this snow squall warning at Dec 24, 2021, 3:12 PM PST for Elko County, Humboldt County, Nevada. It was in force for 48 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 24, 2021, 3:12 PM PST (23:12 UTC)
Expired
Dec 24, 2021, 4:00 PM PST
In force
48 min
Issued by
NWS Elko, NV
Area
Storm-based polygon

Counties Elko County, NV, Humboldt County, NV

The radar

The Elko radar (KLRX), 123 km from the middle of the area, began a volume at 23:12 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, 11.2 hours before the alert went out and 179 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 2021-12-24Temperature 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 2021-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.1939587897Sfc1 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
912 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

281 
WWUS55 KLKN 242312
SQWLKN

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Elko NV
312 PM PST Fri Dec 24 2021

NVC007-013-250000-
/O.NEW.KLKN.SQ.W.0005.211224T2312Z-211225T0000Z/
Humboldt NV-Elko NV-
312 PM PST Fri Dec 24 2021

The National Weather Service in Elko Nevada has issued a

* Snow Squall Warning for...
  East central Humboldt County in northwestern Nevada...
  Northwestern Elko County in northeastern Nevada...

* Until 400 PM PST.

* At 308 PM PST, a dangerous snow squall line was located in 
  Northern Elko county moving east northeast at 15 mph.

  HAZARD...A line of storms is creating areas of snow squalls. 
           Extremely poor visibility in heavy snow and blowing snow 
           will occur in these storms. Wind gusts greater than 30 
           mph will cause near whiteout conditions.

  SOURCE...Radar indicated.

  IMPACT...Dangerous life-threatening travel.


Locations impacted include...
Mountain City, Jarbidge, Owyhee, Midas, Chicken Creek Summit, Chimney
Dam Reservoir, Wilson Reservoir, Sheep Creek Reservoir, Adam Peak,
Twin Creeks Mine and Wild Horse Reservoir.

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 4190 11502 4102 11740 4133 11760 4200 11610
      4200 11513
TIME...MOT...LOC 2308Z 248DEG 49KT 4197 11542 

$$

90

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 1:57 PM PSTWinter Weather AdvisoryLKNElko, Eureka, Humboldt, Lander, Nye, White Pine3 days
Dec 24, 2:43 PM PSTSpecial Weather StatementLKN32 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.