Alert archive / California / Wind Advisories in 2018

Wind Advisory 2, NWS Las Vegas, NV

January 18, 2018Inyo County, California

NWS Las Vegas, NV issued this wind advisory at Jan 18, 2018, 3:41 AM PST for Inyo County, California. It took effect at Jan 18, 2018, 6:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jan 18, 2018, 3:41 AM PST (11:41 UTC)
In effect from
Jan 18, 2018, 6:00 PM PST
Expired
Jan 19, 2018, 6:00 AM PST
In force
12 hr
Issued by
NWS Las Vegas, NV

County Inyo County, CA

The radar

The Edwards AFB radar (KEYX), 158 km from the middle of the area, began a volume at 11:44 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

Las Vegas, NV (KVEF), launched 00:00Z, 11.7 hours before the alert went out and 168 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, Las Vegas, NV at 00:00Z on 2018-01-18Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2018-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 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
2661 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

098 
WWUS75 KVEF 181141
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
341 AM PST Thu Jan 18 2018

CAZ519-190230-
/O.NEW.KVEF.WI.Y.0002.180119T0200Z-180119T1400Z/
Eastern Sierra Slopes-
Including Aspendell and Whitney Portal
341 AM PST Thu Jan 18 2018

...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM PST
FRIDAY...

The National Weather Service in Las Vegas has issued a Wind
Advisory, which is in effect from 6 PM this evening to 6 AM PST
Friday. 

* TIMING...Downslope winds will increase tonight, peak early 
  Friday morning, and decrease around sunrise.
 
* WINDS...Sustained southwest winds 35 to 45 MPH, with gusts up to
  65 mph. 

* IMPACTS...These high winds will make driving on roadways above
  5000 feet very difficult. Any drivers of high profile vehicles,
  including vans, should be alert to the danger of strong winds. 
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means strong winds gusting over 40 mph can make
driving difficult...especially for high profile vehicles. Use
extra caution.

&&

$$
3 follow-up statements
739 
WWUS75 KVEF 182333
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
333 PM PST Thu Jan 18 2018

CAZ519-190800-
/O.CON.KVEF.WI.Y.0002.180119T0200Z-180119T1400Z/
Eastern Sierra Slopes-
Including Aspendell and Whitney Portal
333 PM PST Thu Jan 18 2018

...WIND ADVISORY IN EFFECT FOR THE EASTERN SIERRA SLOPES FROM 6 PM
PST THIS EVENING UNTIL 6 AM PST FRIDAY...

* TIMING...Downslope winds will increase tonight, peak early 
  Friday morning, and decrease around sunrise. 

* WINDS...Sustained southwest winds 35 to 45 MPH, with gusts up 
  to 65 mph. 

* IMPACTS...These high winds will make driving on roadways above 
  5000 feet very difficult. Any drivers of high profile 
  vehicles, including vans, should be alert to the danger of 
  strong winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means strong winds gusting over 40 mph can make
driving difficult...especially for high profile vehicles. Use
extra caution.

&&

$$
180 
WWUS75 KVEF 190318
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
718 PM PST Thu Jan 18 2018

CAZ519-191400-
/O.CON.KVEF.WI.Y.0002.000000T0000Z-180119T1400Z/
Eastern Sierra Slopes-
Including Aspendell and Whitney Portal
718 PM PST Thu Jan 18 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST FRIDAY...

* TIMING...Downslope winds will increase this evening, peak near
  midnight, then decrease around sunrise. 

* WINDS...Sustained southwest winds 35 to 45 MPH, with gusts up 
  to 65 mph. 

* IMPACTS...These high winds will make driving on roadways above 
  5000 feet very difficult. Any drivers of high profile 
  vehicles, including vans, should be alert to the danger of 
  strong winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means strong winds gusting over 40 mph can make
driving difficult...especially for high profile vehicles. Use
extra caution.

&&

$$
853 
WWUS75 KVEF 191355
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
555 AM PST Fri Jan 19 2018

CAZ519-191500-
/O.EXP.KVEF.WI.Y.0002.000000T0000Z-180119T1400Z/
Eastern Sierra Slopes-
Including Aspendell and Whitney Portal
555 AM PST Fri Jan 19 2018

...WIND ADVISORY WILL EXPIRE AT 6 AM PST EARLY THIS MORNING...

The National Weather Service in Las Vegas will allow the Wind
Advisory in the eastern Sierra Nevada Mountains to expire. 

Wind speeds above 5000 feet are expected trend down through the 
rest of the morning.


$$

Nearby

Wind Advisories in California, 2018Every wind advisory in 2018

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.