Alert archive / California / Wind Advisories in 2018

Wind Advisory 1, NWS Las Vegas, NV

January 7, 2018San Bernardino County, California

NWS Las Vegas, NV issued this wind advisory at Jan 7, 2018, 9:26 PM PST for San Bernardino County, California. It took effect at Jan 9, 2018, 2:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 7, 2018, 9:26 PM PST (05:26 UTC)
In effect from
Jan 9, 2018, 2:00 PM PST
Expired
Jan 9, 2018, 12:38 PM PST
In force
Issued by
NWS Las Vegas, NV

County San Bernardino County, CA

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 5.4 hours before the alert went out and 180 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 2018-01-08Temperature 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 2018-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
2548 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

390 
WWUS75 KVEF 080526
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
926 PM PST Sun Jan 7 2018

CAZ525-081200-
/O.NEW.KVEF.HW.W.0001.180109T0600Z-180109T2200Z/
/O.NEW.KVEF.WI.Y.0001.180109T2200Z-180110T1200Z/
Morongo Basin-
Including Morongo Valley, Yucca Valley, 
and Twentynine Palms
926 PM PST Sun Jan 7 2018

...HIGH WIND WARNING IN EFFECT FROM 10 PM MONDAY TO 2 PM PST
TUESDAY...
...WIND ADVISORY IN EFFECT FROM 2 PM TUESDAY TO 4 AM PST
WEDNESDAY...

The National Weather Service in Las Vegas has issued a High Wind
Warning, which is in effect from 10 PM Monday to 2 PM PST 
Tuesday. A Wind Advisory has also been issued. This Wind Advisory 
is in effect from 2 PM Tuesday to 4 AM PST Wednesday. 

* TIMING...The incoming Pacific Storm will produce high winds near
  the Morongo Basin of San Bernardino County late Monday evening 
  through early Tuesday afternoon then speeds will trend downward 
  Tuesday evening and overnight.

* WINDS...High downslope winds will develop along and near the
  desert slopes. South winds gusting 55 to 75 mph are likely near
  the slopes. Gusts will decrease to 40 to 50 mph Tuesday 
  afternoon and overnight.

* IMPACTS...High winds will impact areas between Morongo Basin and
  Landers including SR 62 and SR 247. These high winds may make
  driving dangerous...rapidly reduce visibility in dust prone 
  areas and lead to property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should exercise extreme caution while driving in the
warning area. Be alert to sudden gusts of wind which may cause you
to lose control of your vehicle.

&&

$$
4 follow-up statements
048 
WWUS75 KVEF 081135
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
335 AM PST Mon Jan 8 2018

CAZ525-090000-
/O.CON.KVEF.HW.W.0001.180109T0600Z-180109T2200Z/
/O.CON.KVEF.WI.Y.0001.180109T2200Z-180110T1200Z/
Morongo Basin-
Including Morongo Valley, Yucca Valley, 
and Twentynine Palms
335 AM PST Mon Jan 8 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
2 PM PST TUESDAY...
...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* TIMING...The incoming Pacific Storm will produce high winds 
  near the Morongo Basin of San Bernardino County late Monday 
  evening through early Tuesday afternoon then speeds will trend 
  downward Tuesday evening and overnight. 

* WINDS...High downslope winds will develop along and near the
  desert slopes. South winds gusting 55 to 65 mph are likely near
  the slopes. Gusts will decrease to 40 to 50 mph Tuesday 
  afternoon and overnight. 

* IMPACTS...High winds will impact areas between Morongo Basin 
  and Landers including SR 62 and SR 247. These high winds may 
  make driving dangerous...rapidly reduce visibility in dust 
  prone areas and lead to property damage. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should exercise extreme caution while driving in the
warning area. Be alert to sudden gusts of wind which may cause
you to lose control of your vehicle.

&&

$$
451 
WWUS75 KVEF 082118
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
118 PM PST Mon Jan 8 2018

CAZ525-091200-
/O.CON.KVEF.HW.W.0001.180109T0600Z-180109T2200Z/
/O.CON.KVEF.WI.Y.0001.180109T2200Z-180110T1200Z/
Morongo Basin-
Including Morongo Valley, Yucca Valley, 
and Twentynine Palms
118 PM PST Mon Jan 8 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
2 PM PST TUESDAY...
...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM TUESDAY TO 4 AM PST
WEDNESDAY...

* TIMING...The incoming Pacific Storm will produce high winds 
  near the Morongo Basin of San Bernardino County late Monday 
  evening through early Tuesday afternoon then speeds will trend 
  downward Tuesday evening and overnight. 

* WINDS...High downslope winds will develop along and near the 
  desert slopes. South winds gusting 55 to 65 mph are likely 
  near the slopes. Gusts will decrease to 40 to 50 mph Tuesday 
  afternoon and overnight. 

* IMPACTS...High winds will impact areas between Morongo Basin 
  and Landers including SR 62 and SR 247. These high winds may 
  make driving dangerous...rapidly reduce visibility in dust 
  prone areas and lead to property damage. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should exercise extreme caution while driving in the
warning area. Be alert to sudden gusts of wind which may cause
you to lose control of your vehicle.

&&

$$
780 
WWUS75 KVEF 091137
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
337 AM PST Tue Jan 9 2018

CAZ525-100000-
/O.CON.KVEF.HW.W.0001.000000T0000Z-180109T2200Z/
/O.CON.KVEF.WI.Y.0001.180109T2200Z-180110T1200Z/
Morongo Basin-
Including Morongo Valley, Yucca Valley, 
and Twentynine Palms
337 AM PST Tue Jan 9 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...
...WIND ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
4 AM PST WEDNESDAY...

* TIMING...The incoming Pacific Storm will produce high winds near
  the Morongo Basin of San Bernardino County through early this 
  afternoon then speeds will trend downward Tuesday evening and 
  overnight. 

* WINDS...High downslope winds will develop along and near the
  desert slopes. South winds gusting 55 to 65 mph are likely near
  the slopes. Gusts will decrease to 40 to 50 mph this afternoon 
  and overnight. 

* IMPACTS...High winds will impact areas between Morongo Basin 
  and Landers including SR 62 and SR 247. These high winds may 
  make driving dangerous...rapidly reduce visibility in dust 
  prone areas and lead to property damage. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should exercise extreme caution while driving in the
warning area. Be alert to sudden gusts of wind which may cause
you to lose control of your vehicle.

&&

$$
769 
WWUS75 KVEF 092038
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
1238 PM PST Tue Jan 9 2018

CAZ525-092145-
/O.CAN.KVEF.HW.W.0001.000000T0000Z-180109T2200Z/
/O.CAN.KVEF.WI.Y.0001.180109T2200Z-180110T1200Z/
Morongo Basin-
Including Morongo Valley, Yucca Valley, 
and Twentynine Palms
1238 PM PST Tue Jan 9 2018

...HIGH WIND WARNING IS CANCELLED...
...WIND ADVISORY IS CANCELLED...

The National Weather Service in Las Vegas has cancelled the High
Wind Warning. The Wind Advisory has been cancelled. 

Rainfall has kept winds a bit lower than expected and the High
Wind Warning has been cancelled. Gusts of 30-40 MPH will still be
possible through the afternoon.

$$

NVZ019-020-101400-
/O.NEW.KVEF.FG.Y.0001.180109T2038Z-180110T1400Z/
Spring Mountains-Red Rock Canyon-Las Vegas Valley-
Including The Town Of Mt Charleston, 
Red Rock Canyon, Las Vegas, North Las Vegas, Henderson, 
and Boulder City
1238 PM PST Tue Jan 9 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM PST WEDNESDAY...

The National Weather Service in Las Vegas has issued a Dense Fog
Advisory, which is in effect until 6 AM PST Wednesday. 

* VISIBILITY...Areas of visibility under one-quarter mile can be
  expected this afternoon and potentially through the overnight
  hours across the Las Vegas Valley and Spring Mountains.

* IMPACTS...Reduced visibility will create hazardous travel
  conditions across the Las Vegas Valley as well as the Spring
  Mountains. This includes Mountain Spring Summit along Highway 
  160 between Pahrump and Las Vegas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving...slow down...
use your headlights...and leave plenty of distance ahead of you.

&&

$$

Wolcott

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 9:26 PM PSTHigh Wind WarningVEFSan Bernardino39 hr
Jan 8, 1:11 PM PSTFlash Flood WatchVEFInyo27 hr

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.