Alert archive / California / High Wind Warnings in 2017

High Wind Warning 12, NWS Las Vegas, NV

October 20, 2017Inyo County, California

NWS Las Vegas, NV issued this high wind warning at Oct 20, 2017, 10:21 AM PDT for Inyo County, California. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 20, 2017, 10:21 AM PDT (17:21 UTC)
Expired
Oct 20, 2017, 1:00 PM PDT
In force
3 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 17:19 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 12:00Z, 5.4 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 12:00Z on 2017-10-20Temperature 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 12:00Z on 2017-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 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
2559 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
259 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

701 
WWUS75 KVEF 201721
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
1021 AM PDT Fri Oct 20 2017

CAZ519-520-210300-
/O.UPG.KVEF.WI.Y.0043.000000T0000Z-171021T0300Z/
/O.NEW.KVEF.HW.W.0012.171020T1721Z-171020T2000Z/
/O.NEW.KVEF.WI.Y.0044.171020T2000Z-171021T0300Z/
Eastern Sierra Slopes-Owens Valley-
Including Aspendell, Whitney Portal, Bishop, 
Independence, Lone Pine, and Olancha
1021 AM PDT Fri Oct 20 2017

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM PDT THIS AFTERNOON...
...WIND ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING...

The National Weather Service in Las Vegas has issued a High Wind
Warning, which is in effect until 1 PM PDT this afternoon. A Wind
Advisory has also been issued. This Wind Advisory is in effect
until 8 PM PDT this evening. The Wind Advisory is no longer in
effect. 

* TIMING...Gusty winds will continue through today and decrease 
  after sunset. 

* WINDS...West to southwest winds gusting to 70 mph will turn to 
  a northerly direction this morning. Gusts of 35-55 are 
  possible behind the front. 

* IMPACTS...Strong crosswinds could make travel hazardous
  especially along Highway 395. Visibility could also be reduced 
  in areas due to blowing dust. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Strong winds can make driving dangerous...rapidly
reduce visibility in dust prone areas and lead to property
damage.

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

&&

$$

AZZ001-003-CAZ523>525-210300-
/O.CON.KVEF.WI.Y.0043.000000T0000Z-171021T0300Z/
Northwest Plateau-Northwest Deserts-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-
Including Colorado City, 
Pipe Spring National Monument, Tuweep, Mt Trumbell, 
Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Barstow, Daggett, Fort Irwin, Baker, 
Mountain Pass, Mitchell Caverns, Morongo Valley, Yucca Valley, 
and Twentynine Palms
1021 AM PDT Fri Oct 20 2017 /1021 AM MST Fri Oct 20 2017/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS
EVENING...

* TIMING...Winds will increase this morning, peak in the 
  afternoon, and decrease after sunset. 

* WINDS...West to southwest winds 25 to 35 mph with gusts 35 to 
  45 mph. Higher gusts of 45-55 mph will be likely across the 
  Western Mojave Desert, including Barstow, Daggett, and Fort 
  Irwin. 

* IMPACTS...Strong crosswinds could make travel hazardous on 
  north south roadways, including Interstate 15. Visibility 
  could also be reduced in areas due to blowing dust, 
  particularly near the Mojave River. 

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.

&&

$$

CAZ521-522-NVZ014-210300-
/O.CON.KVEF.WI.Y.0043.000000T0000Z-171021T0300Z/
White Mountains of Inyo County-Death Valley National Park-
Esmeralda and Central Nye County-
Including Westgard Pass, Bristlecone Pine, 
Furnace Creek, Stovepipe Wells, Shoshone, Beatty, Goldfield, 
Silver Peak, and Dyer
1021 AM PDT Fri Oct 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* TIMING...Winds will increase this morning, peak in the late 
  morning and afternoon, and decrease after sunset. 

* WINDS...North winds 25 to 35 mph with gusts 35 to 45 mph.

* IMPACTS...Strong crosswinds could make travel hazardous on 
  area roadways. Visibility could also be reduced in areas due 
  to blowing dust. 

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.

&&

$$

AZZ002-036-CAZ527-NVZ021-210300-
/O.CON.KVEF.LW.Y.0009.171021T0300Z-171022T0100Z/
Lake Havasu and Fort Mohave-Lake Mead National Recreation Area-
San Bernardino County-Upper Colorado River Valley-
Including Lake Havasu City, Desert Hills, Topock, 
Bullhead City, Oatman, Mohave Valley, Needles, Hoover Dam, 
and Laughlin
1021 AM PDT Fri Oct 20 2017 /1021 AM MST Fri Oct 20 2017/

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 8 PM PDT /8 PM MST/
THIS EVENING TO 6 PM PDT /6 PM MST/ SATURDAY...

* TIMING...Winds will increase behind a cold front overnight, 
  peak Saturday morning, then decrease late Saturday afternoon. 

* WINDS...North winds 20 to 30 mph, gusting 30 to 40 mph.

* IMPACTS...Gusty winds will create rough water conditions on 
  Lake Mead, Lake Mohave, and Lake Havasu. Waves could swamp 
  small craft. Areas of low visibility due to blowing dust will 
  be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lake Wind Advisory indicates that winds will cause rough chop
on area lakes. Small boats will be especially prone to capsizing.

&&

$$
1 follow-up statement
749 
WWUS75 KVEF 202001
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
101 PM PDT Fri Oct 20 2017

CAZ519-520-210300-
/O.EXP.KVEF.HW.W.0012.000000T0000Z-171020T2000Z/
/O.CON.KVEF.WI.Y.0044.000000T0000Z-171021T0300Z/
Eastern Sierra Slopes-Owens Valley-
Including Aspendell, Whitney Portal, Bishop, 
Independence, Lone Pine, and Olancha
101 PM PDT Fri Oct 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...
...HIGH WIND WARNING HAS EXPIRED...

* TIMING...Gusty winds will continue through today and decrease 
  after sunset. 

* WINDS...Gusts of 35 to 55 are possible through this evening. 

* IMPACTS...Strong crosswinds could make travel hazardous 
  especially along Highway 395. Visibility could also be reduced 
  in areas due to blowing dust. 

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.

&&

$$

AZZ001-003-CAZ523>525-210300-
/O.CON.KVEF.WI.Y.0043.000000T0000Z-171021T0300Z/
Northwest Plateau-Northwest Deserts-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-
Including Colorado City, 
Pipe Spring National Monument, Tuweep, Mt Trumbell, 
Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Barstow, Daggett, Fort Irwin, Baker, 
Mountain Pass, Mitchell Caverns, Morongo Valley, Yucca Valley, 
and Twentynine Palms
101 PM PDT Fri Oct 20 2017 /101 PM MST Fri Oct 20 2017/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS
EVENING...

* TIMING...Winds will increase this morning, peak in the 
  afternoon, and decrease after sunset. 

* WINDS...West to southwest winds 25 to 35 mph with gusts 35 to 
  45 mph. Higher gusts of 45-55 mph will be likely across the 
  Western Mojave Desert, including Barstow, Daggett, and Fort 
  Irwin. 

* IMPACTS...Strong crosswinds could make travel hazardous on 
  north south roadways, including Interstate 15. Visibility 
  could also be reduced in areas due to blowing dust, 
  particularly near the Mojave River. 

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.

&&

$$

CAZ521-522-NVZ014-210300-
/O.CON.KVEF.WI.Y.0043.000000T0000Z-171021T0300Z/
White Mountains of Inyo County-Death Valley National Park-
Esmeralda and Central Nye County-
Including Westgard Pass, Bristlecone Pine, 
Furnace Creek, Stovepipe Wells, Shoshone, Beatty, Goldfield, 
Silver Peak, and Dyer
101 PM PDT Fri Oct 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING...

* TIMING...Winds will increase this morning, peak in the late 
  morning and afternoon, and decrease after sunset. 

* WINDS...North winds 25 to 35 mph with gusts 35 to 45 mph.

* IMPACTS...Strong crosswinds could make travel hazardous on 
  area roadways. Visibility could also be reduced in areas due 
  to blowing dust. 

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.

&&

$$

AZZ002-036-CAZ527-NVZ021-210415-
/O.CON.KVEF.LW.Y.0009.171021T0300Z-171022T0100Z/
Lake Havasu and Fort Mohave-Lake Mead National Recreation Area-
San Bernardino County-Upper Colorado River Valley-
Including Lake Havasu City, Desert Hills, Topock, 
Bullhead City, Oatman, Mohave Valley, Needles, Hoover Dam, 
and Laughlin
101 PM PDT Fri Oct 20 2017 /101 PM MST Fri Oct 20 2017/

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 8 PM PDT /8 PM MST/
THIS EVENING TO 6 PM PDT /6 PM MST/ SATURDAY...

* TIMING...Winds will increase behind a cold front overnight, 
  peak Saturday morning, then decrease late Saturday afternoon. 

* WINDS...North winds 20 to 30 mph, gusting 30 to 40 mph.

* IMPACTS...Gusty winds will create rough water conditions on 
  Lake Mead, Lake Mohave, and Lake Havasu. Waves could swamp 
  small craft. Areas of low visibility due to blowing dust will 
  be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lake Wind Advisory indicates that winds will cause rough chop
on area lakes. Small boats will be especially prone to capsizing.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 20, 8:03 AM PDTLake Wind AdvisoryVEFSan Bernardino30 hr
Oct 20, 10:21 AM PDTWind AdvisoryVEFInyo10 hr
Oct 20, 3:08 PM PDTRed Flag WarningVEFSan Bernardino23 hr

Nearby

High Wind Warnings in California, 2017Every high wind warning in 2017

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.