Alert archive / Nevada / Snow Squall Warnings in 2021

Snow Squall Warning 3, NWS Elko, NV

February 13, 2021Lander County, Nevada

NWS Elko, NV issued this snow squall warning at Feb 13, 2021, 7:13 PM PST for Lander County, Nevada. 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
Feb 13, 2021, 7:13 PM PST (03:13 UTC)
Expired
Feb 13, 2021, 7:45 PM PST
In force
32 min
Issued by
NWS Elko, NV
Area
Storm-based polygon

County Lander County, NV

The radar

The Elko radar (KLRX), 15 km from the middle of the area, began a volume at 03:13 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

Reno, NV (KREV), launched 00:00Z, 3.2 hours before the alert went out and 164 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, Reno, NV at 00:00Z on 2021-02-14Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 00:00Z on 2021-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897117136156175194Sfc1 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
1529 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

515 
WWUS55 KLKN 140316
SQWLKN

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Elko NV
713 PM PST Sat Feb 13 2021

NVC015-140345-
/O.NEW.KLKN.SQ.W.0003.210214T0313Z-210214T0345Z/
Lander NV-
713 PM PST Sat Feb 13 2021

The National Weather Service in Elko Nevada has issued a

* Snow Squall Warning for...
  North central Lander County in north central Nevada...

* Until 745 PM PST.

* At 713 PM PST, a dangerous snow squall was located near Valmy,
  moving southeast at 20 mph.

  HAZARD...Poor visibility in heavy snow and blowing snow. Wind 
           gusts up to 30 mph.

  SOURCE...Radar indicated.

  IMPACT...Dangerous life-threatening travel. Temperatures could 
           drop below freezing quickly allowing snow to accumulate 
           quickly on road surfaces.

Locations impacted include...
Interstate 80 from Valmy to Battle Mountain. Battle Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4073 11685 4057 11699 4064 11706 4065 11702
      4082 11702 4082 11701
TIME...MOT...LOC 0313Z 303DEG 19KT 4076 11707 

$$

93

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 2:54 AM PSTWinter Weather AdvisoryLKNElko, White Pine37 hr

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.