Alert archive / Nevada / Special Weather Statements in 2021

Special Weather Statement, NWS Elko, NV

July 31, 2021

NWS Elko, NV issued this special weather statement at Jul 31, 2021, 5:21 PM PDT. It was in force for 54 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 31, 2021, 5:21 PM PDT (00:21 UTC)
Expired
Jul 31, 2021, 6:15 PM PDT
In force
54 min
Issued by
NWS Elko, NV

The radar

The Salt Lake City radar (KMTX), 198 km from the middle of the area, began a volume at 00:20 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 00:00Z, 0.4 hours before the alert went out and 110 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 00:00Z on 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 00:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.1939Sfc1 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
84 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
1100 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

510 
WWUS85 KLKN 010021
SPSLKN

Special Weather Statement
National Weather Service Elko NV
521 PM PDT Sat Jul 31 2021
 
NVZ031-010115-
Northern Elko County NV-
521 PM PDT Sat Jul 31 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN ELKO COUNTY UNTIL
615 PM PDT...

At 519 PM PDT, Doppler radar was tracking a strong cluster of 
thunderstorms over northeast Elko county, moving north at 30 mph.

Half inch hail and wind gusts 40 to 50 mph will be possible with this
storm.

Locations impacted include...
Jarbidge, Jackpot and Contact. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4170 11417 4172 11481 4165 11507 4164 11533
      4200 11548 4199 11409
TIME...MOT...LOC 0019Z 158DEG 33KT 4163 11504 

$$

87

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 5:06 PM PDTAreal Flood AdvisoryLKNElko3 hr
Jul 31, 5:38 PM PDTSpecial Weather StatementLKN37 min
Jul 31, 5:54 PM PDTAreal Flood AdvisoryLKNElko3 hr
Jul 31, 6:15 PM PDTSpecial Weather StatementLKN30 min
Jul 31, 6:19 PM PDTAreal Flood AdvisoryLKNElko5 hr
Jul 31, 6:49 PM PDTAreal Flood AdvisoryLKNElko3 hr
Aug 1, 11:39 AM PDTAreal Flood AdvisoryLKNElko110 min
Aug 1, 11:43 AM PDTSpecial Weather StatementLKN32 min
Aug 1, 11:46 AM PDTAreal Flood AdvisoryLKNElko36 min
Aug 1, 12:16 PM PDTFlash Flood WarningLKNWhite Pine2 hr
Aug 1, 12:20 PM PDTFlash Flood WarningLKNElko2 hr
Aug 1, 12:34 PM PDTAreal Flood AdvisoryLKNElko42 min
Aug 1, 12:38 PM PDTSpecial Weather StatementLKNWhite Pine37 min
Aug 1, 1:15 PM PDTFlash Flood WarningLKNElko3 hr
Aug 1, 1:37 PM PDTAreal Flood AdvisoryLKNWhite Pine3 hr
Aug 1, 2:00 PM PDTSpecial Weather StatementLKN45 min
Aug 1, 2:11 PM PDTSpecial Weather StatementLKN34 min
Aug 1, 2:43 PM PDTSpecial Weather StatementLKN47 min
Aug 1, 3:24 PM PDTSpecial Weather StatementLKNElko36 min
Aug 1, 3:29 PM PDTSpecial Weather StatementLKN31 min
Aug 1, 3:30 PM PDTSpecial Weather StatementLKN30 min
Aug 1, 3:47 PM PDTAreal Flood AdvisoryLKNElko3 hr
Aug 1, 4:00 PM PDTAreal Flood AdvisoryLKNElko3 hr
Aug 1, 4:24 PM PDTAreal Flood AdvisoryLKNElko3 hr

Nearby

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