Alert archive / Nevada / High Wind Warnings in 2023

High Wind Warning 6, NWS Las Vegas, NV

August 20, 2023Mohave County, Arizona; Inyo County, San Bernardino County, California; 4 counties in Nevada

NWS Las Vegas, NV issued this high wind warning at Aug 20, 2023, 1:11 AM MST for Mohave County, Arizona; Inyo County, San Bernardino County, California; 4 counties in Nevada. It took effect at Aug 20, 2023, 2:00 PM MST. It was in force for 15 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 20, 2023, 1:11 AM MST (08:11 UTC)
In effect from
Aug 20, 2023, 2:00 PM MST
Expired
Aug 21, 2023, 5:11 AM MST
In force
15 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, Inyo County, CA, San Bernardino County, CA, Clark County, NV, Esmeralda County, NV, Lincoln County, NV, Nye County, NV

The radar

The Las Vegas radar (KESX), 142 km from the middle of the area, began a volume at 08:11 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.

What was reported inside it

TimeReportWhereRemark
Aug 20, 2:00 PM MSTFLOOD5 Wnw Moapa, NVRanch Road in Moapa between SR 168 and Eiseman Street is closed due to flooding. Report via Clark County Government Twitter page.
Aug 20, 2:17 PM MSTFLASH FLOOD18 Ene Big Bear City, CAReport from mPING: Street/road flooding; Street/road closed; Vehicles stranded.
Aug 20, 2:24 PM MSTDEBRIS FLOW3 Ese Crestline, CASR18 AND LAKE GREGORY ROCK ALL OVER ROADWAY.
Aug 20, 3:00 PM MSTFLASH FLOOD1 Nw Forest Falls, CAVideo of debris flow in Valley of the Falls. Time estimated. Upper elevations Raywood Flats reached 11 inches of rain in one day. El Dorado burn scar area. Oak Glen had 0.91 inches in 1 hour rainfall. Yucaipa Ridge 0.75 in 1 hour.
Aug 20, 3:13 PM MSTFLASH FLOOD5 E Twentynine Palms, CAHeavy flooding pushing debris across the roadway at State Route 62 between Cactus Jack to Godwin. From CHP.
Aug 20, 4:00 PM MSTFLASH FLOOD1 E Wrightwood, CACorrects previous flash flood report from 1 E Wrightwood. State highway 2 is closed at Sheep Creek drainage. Massive boulders and water flow was captured on video by public works while trying to clear the highway during the TC Hilary storm. Estimated time base
Aug 20, 4:00 PM MSTFLASH FLOOD4 S Big Bear Lake, CAPrevious report was 1 bridge but now 2 bridges are reported washed out on Seven Oaks Road to Glass Road. There are 5 to 15 persons cut off from access. There is ongoing search and rescue for missing person possibly washed into Barton Creek or Santa Ana River.
Aug 20, 4:00 PM MSTFLASH FLOOD4 S Big Bear Lake, CAPrevious report was 1 bridge but now 2 bridges are reported washed out on Seven Oaks Road to Glass Road. There are 5 to 15 persons cut off from access. There is ongoing search and rescue for missing person possibly washed into Barton Creek or Santa Ana River.
Aug 20, 4:00 PM MSTFLASH FLOOD4 Wsw Forest Falls, CAVideo in Oak Glen Potato canyon off mud and rocks across roadway. Oak Glen reported 0.91 in one hour. El Dorado fire scar from 2020. Estimated time.
Aug 20, 4:00 PM MSTFLASH FLOOD4 Wsw Forest Falls, CAVideo in Oak Glen Potato canyon off mud and rocks across roadway. Oak Glen reported 0.91 in one hour. El Dorado fire scar from 2020. Estimated time.
Aug 20, 4:01 PM MSTFLASH FLOOD2 W Joshua Tree, CAState Route 62 eastbound just east of Olympic has mud and debris on the roadway.
Aug 20, 4:10 PM MSTNON-TSTM WND GST 8310 Sse Essex, CAAt 1530 PDT, the sensor at Old Woman Mountain began measuring sustained winds of 40 mph or greater. These winds continued through 1650 PDT. The peak gust was 83 mph and the peak sustained wind speed was 52 mph. Both occurred at 1610 PDT.
Aug 20, 4:20 PM MSTNON-TSTM WND GST 794 E Yucaipa, CAMesonet station SE085 Pigsah Peak (SCE085).
Aug 20, 4:20 PM MSTNON-TSTM WND GST 794 E Yucaipa, CAMesonet station SE085 Pigsah Peak (SCE085).
Aug 20, 4:29 PM MSTFLASH FLOOD3 W Joshua Tree, CAYucca Mesa Road at Barron Drive closed due to flooding. Report via Facebook.
Aug 20, 4:40 PM MSTFLASH FLOOD15 Sw Essex, CAWeather-related closure. National Trails Highway (66) west is closed due to heavy rains and flooding on 66 between Essex Road / Sunflower Springs Road and Kelbaker Road. Report via Twitter.
Aug 20, 4:45 PM MSTRAIN 0.883 Ene Big Bear City, CAMesonet station EW3063 Big Bear City - 1 hour rainfall.
Aug 20, 4:45 PM MSTRAIN 0.883 Ene Big Bear City, CAMesonet station EW3063 Big Bear City - 1 hour rainfall.
Aug 20, 4:45 PM MSTRAIN 1.068 Sse Big Bear City, CAMesonet station HBRC1 Heart Bar 1- hour rainfall.
Aug 20, 4:45 PM MSTRAIN 1.068 Sse Big Bear City, CAMesonet station HBRC1 Heart Bar 1- hour rainfall.
Aug 20, 4:45 PM MSTRAIN 3.593 Ene Big Bear City, CAMesonet station EW3063 Big Bear City - total rainfall.
Aug 20, 4:45 PM MSTRAIN 3.593 Ene Big Bear City, CAMesonet station EW3063 Big Bear City - total rainfall.
Aug 20, 5:00 PM MSTFLASH FLOOD8 Sse Big Bear City, CAState highway 38 is washed out (half of road to center line) at Heart Bar along Santa Ana river. Highway is closed Jenks Lake Rd to Lakewood Rd until contracted repairs to rebuild road can be completed. This road goes to Big Bear City. Heart Bar received 7 inc
Aug 20, 5:00 PM MSTFLASH FLOOD8 Sse Big Bear City, CAState highway 38 is washed out (half of road to center line) at Heart Bar along Santa Ana river. Highway is closed Jenks Lake Rd to Lakewood Rd until contracted repairs to rebuild road can be completed. This road goes to Big Bear City. Heart Bar received 7 inc
Aug 20, 5:00 PM MSTNON-TSTM WND GST 626 Se Forest Falls, CAMesonet station 045SE Snow Peak (SCE1045).
Aug 20, 5:00 PM MSTFLASH FLOOD1 Ne Twentynine Palms, CAJoe Davis between Utah and Sherman Hoyt is closed due to flooding.
Aug 20, 5:00 PM MSTFLASH FLOOD3 Ne Twentynine Palms, CABaghdad between Amboy and Valle Vista is closed due to flooding.
Aug 20, 5:00 PM MSTFLASH FLOODTwentynine Palms, CAOcotillo between Gorgonio and Veterans Way is closed due to flooding.
Aug 20, 5:00 PM MSTFLASH FLOODTwentynine Palms, CASplit Rock between Buena Vista and Bagely is closed due to flooding.
Aug 20, 5:00 PM MSTFLASH FLOODTwentynine Palms, CATamarisk between Buena Vista and Bagley is closed due to flooding.
Aug 20, 5:09 PM MSTRAIN 4.391 W Phelan, CA4.39 inches of rainfall between 400 AM and 500 PM, with heavy rain continuing to fall.
Aug 20, 5:09 PM MSTRAIN 4.391 W Phelan, CA4.39 inches of rainfall between 400 AM and 500 PM, with heavy rain continuing to fall.
Aug 20, 5:15 PM MSTNON-TSTM WND GST 597 E Landers, CAJoshua Tree CA CWOP site reported a wind gust to 59mph at 515pm. (D7835).
Aug 20, 5:26 PM MSTNON-TSTM WND GST 5819 S Haiwee, CAFive Mile CA RAWS reported a wind gust to 58mph at 526PM (FMRC1).
Aug 20, 5:30 PM MSTFLOODWrightwood, CAWrightwood resident reports over 5 inches rainfall, flooding of the main roads, HWY 2 and 138 closed due to flooding and debris flow.
Aug 20, 5:30 PM MSTFLOODWrightwood, CAWrightwood resident reports over 5 inches rainfall, flooding of the main roads, HWY 2 and 138 closed due to flooding and debris flow.
Aug 20, 5:56 PM MSTNON-TSTM WND GST 5812 Nnw Twentynine Palms, CATwentynine Palms Airport reported a gust to 58mph at 556PM. (KNXP).
Aug 20, 6:13 PM MSTFLASH FLOODMorongo Valley, CARock slid off mountain and into roadway at SR62 and Hess Rd.
Aug 20, 6:22 PM MSTFLASH FLOOD5 Sse Keeler, CAState Route 190 remains closed due to flooding. There is water flowing over the roadway.
Aug 20, 6:34 PM MSTFLASH FLOOD1 Ese Forest Falls, CAValley Of The Falls Dr & Summit Dr Roadway is washed out.
Aug 20, 6:34 PM MSTFLASH FLOOD1 Ese Forest Falls, CAValley Of The Falls Dr & Summit Dr Roadway is washed out.
Aug 20, 6:37 PM MSTFLASH FLOODBaker, CAWater is reaching vehicle hoods.
Aug 20, 6:48 PM MSTFLASH FLOOD6 Nw Vidal Junction, CARoadway is flooding.
Aug 20, 6:52 PM MSTFLASH FLOOD4 Ssw Trona, CARoadway flooded. Multiple vehicles stuck.
Aug 20, 6:57 PM MSTNON-TSTM WND DMGMt. Charleston, NVLarge healthy trees are falling over on Mt. Charleston. Report via Twitter.
Aug 20, 6:57 PM MSTNON-TSTM WND DMGMt. Charleston, NVPublic reported photos of trees uprooted in the Spring Mountains due to wind and saturated soils.
Aug 20, 7:00 PM MSTNON-TSTM WND GST 695 Nw Crestline, CAMesonet station 711SE SCE Silverwood West.
Aug 20, 7:00 PM MSTNON-TSTM WND GST 695 Nw Crestline, CAMesonet station 711SE SCE Silverwood West.
Aug 20, 7:00 PM MSTRAIN 5.528 Sse Big Bear City, CAMesonet station HBRC1 Heart Bar which is just east of El Dorado fire scar on highway 38 at 6500 feet.
Aug 20, 7:00 PM MSTRAIN 5.528 Sse Big Bear City, CAMesonet station HBRC1 Heart Bar which is just east of El Dorado fire scar on highway 38 at 6500 feet.
Aug 20, 7:08 PM MSTRAIN 6.181 Wnw Wrightwood, CAMesonet station EW8879 Wrightwood 2 in the San Gabriel mountains.
Aug 20, 7:08 PM MSTRAIN 6.181 Wnw Wrightwood, CAMesonet station EW8879 Wrightwood 2 in the San Gabriel mountains.
Aug 20, 7:16 PM MSTRAIN 4.724 N Lytle Creek, CAMesonet station MNCC1 Mormon Rock Cajon Pass desert side.
Aug 20, 7:16 PM MSTRAIN 4.724 N Lytle Creek, CAMesonet station MNCC1 Mormon Rock Cajon Pass desert side.
Aug 20, 7:19 PM MSTFLASH FLOOD3 Wsw Joshua Tree, CAMudflow covering La Contenta Road and Alta Loma Road.
Aug 20, 7:28 PM MSTRAIN 4.5416 N Desert Hot Springs, CABurns Canyon RAWS in Johnson Valley high desert rainfall from TC Hilary. This is a wind prone area and very dry climate.
Aug 20, 7:32 PM MSTFLASH FLOOD6 Ssw Trona, CARoadway possibly washed out.
Aug 20, 7:40 PM MSTFLASH FLOOD14 Nnw Baker, CAMultiple vehicles getting stuck.
Aug 20, 7:46 PM MSTFLASH FLOOD5 Ene Twentynine Palms, CAMud and debris on roadway.
Aug 20, 7:47 PM MSTFLASH FLOOD7 N Olancha, CAMud, dirt, and rock slide.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 8.2 hours before the alert went out and 47 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 2023-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2023-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
3 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1584 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

372 
WWUS75 KVEF 200811
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
111 AM PDT Sun Aug 20 2023

AZZ001>003-036-CAZ523>527-NVZ021-022-202015-
/O.NEW.KVEF.HW.W.0006.230820T2100Z-230821T1200Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-Cadiz Basin-
San Bernardino County-Upper Colorado River Valley-
Southern Clark County-
Including Colorado City, Pipe Spring National Monument, Tuweep, 
Mt Trumbull, Western Grand Canyon, Lake Havasu City, 
Desert Hills, Topock, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, 
Barstow, Daggett, Fort Irwin, Baker, Mountain Pass, 
Mitchell Caverns, Morongo Valley, Yucca Valley, Twentynine Palms,
Vidal Junction, Needles, Hoover Dam, Laughlin, Primm, 
Searchlight, and Cal-Nev-Ari
111 AM PDT Sun Aug 20 2023 /111 AM MST Sun Aug 20 2023/

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 AM 
MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Mohave County in Northwest Arizona...most of San
  Bernardino County in California...and far southern Clark County
  in Nevada. This includes Lake Mead and Lake Mohave National 
  Recreation areas 
 
* WHEN...From 2 PM this afternoon to 5 AM Monday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are possible. Travel will be 
  difficult, especially for high profile vehicles. Docked boats 
  and marinas may experience damage from high winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

NVZ016>020-202015-
/O.NEW.KVEF.HW.W.0006.230820T2100Z-230821T1200Z/
Northeast Clark County-Western Clark and Southern Nye County-
Sheep Range-Spring Mountains-Red Rock Canyon-Las Vegas Valley-
Including Mesquite, Overton, Moapa, Pahrump, Indian Springs, 
Desert Rock, Amargosa Valley, Hayford Pk, 
The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, 
North Las Vegas, Henderson, and Boulder City
111 AM PDT Sun Aug 20 2023

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 AM
PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected. Wind gusts to 75 mph possible near Mt. Charleston. 

* WHERE...Northeast Clark County, Western Clark and Southern Nye 
  County, Sheep Range, Spring Mountains-Red Rock Canyon and Las 
  Vegas Valley.

* WHEN...From 2 PM this afternoon to 5 AM PDT Monday.

* IMPACTS...Damaging winds may blow down trees. Power outages are
  possible. Travel will be difficult, especially for high profile
  vehicles.

* ADDITIONAL DETAILS...Strong winds will be relatvely brief as the
  remains of decaying Hilary lift through the western Mojave
  Desert. Several hours of strong winds in the evening are likely
  with gusts of 50 to 60 mph in the valley and to 75 mph near Mt 
  Charleston. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

CAZ522-NVZ014-015-202015-
/O.NEW.KVEF.HW.W.0006.230821T0000Z-230821T1500Z/
Death Valley National Park-Esmeralda and Central Nye County-
Lincoln County-
Including Furnace Creek, Stovepipe Wells, Shoshone, Beatty, 
Goldfield, Silver Peak, Dyer, Caliente, Pioche, Panaca, Hiko, 
Alamo, and Rachel
111 AM PDT Sun Aug 20 2023

...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 8 AM
PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...In California, Death Valley National Park. In Nevada, 
  Esmeralda and Central Nye County and Lincoln County.

* WHEN...From 5 PM this afternoon to 8 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
5 follow-up statements
042 
WWUS75 KVEF 201945
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
1245 PM PDT Sun Aug 20 2023

AZZ001>003-036-CAZ523>527-NVZ021-022-210000-
/O.CON.KVEF.HW.W.0006.230820T2100Z-230821T1200Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-Cadiz Basin-
San Bernardino County-Upper Colorado River Valley-
Southern Clark County-
Including Colorado City, Pipe Spring National Monument, Tuweep, 
Mt Trumbull, Western Grand Canyon, Lake Havasu City, 
Desert Hills, Topock, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, 
Barstow, Daggett, Fort Irwin, Baker, Mountain Pass, 
Mitchell Caverns, Morongo Valley, Yucca Valley, Twentynine Palms,
Vidal Junction, Needles, Hoover Dam, Laughlin, Primm, 
Searchlight, and Cal-Nev-Ari
1245 PM PDT Sun Aug 20 2023 /1245 PM MST Sun Aug 20 2023/

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT /5 AM MST/
MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Mohave County in Northwest Arizona...most of San 
  Bernardino County in California...and far southern Clark 
  County in Nevada. This includes Lake Mead and Lake Mohave 
  National Recreation areas.

* WHEN...Through 5 AM Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are possible. Travel will be 
  difficult, especially for high profile vehicles. Docked boats 
  and marinas may experience damage from high winds.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

NVZ016>020-210000-
/O.CON.KVEF.HW.W.0006.230820T2100Z-230821T1200Z/
Northeast Clark County-Western Clark and Southern Nye County-
Sheep Range-Spring Mountains-Red Rock Canyon-Las Vegas Valley-
Including Mesquite, Overton, Moapa, Pahrump, Indian Springs, 
Desert Rock, Amargosa Valley, Hayford Pk, 
The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, 
North Las Vegas, Henderson, and Boulder City
1245 PM PDT Sun Aug 20 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected. Wind gusts to 70 mph possible near Mt. Charleston.

* WHERE...Northeast Clark County, Western Clark and Southern Nye 
  County, Sheep Range, Spring Mountains-Red Rock Canyon and Las 
  Vegas Valley.

* WHEN...Through 5 AM PDT Monday.

* IMPACTS...Damaging winds may blow down trees. Power outages 
  are possible. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...Strong winds will be relatvely brief as 
  the remains of decaying Hilary lift through the western Mojave 
  Desert. Several hours of strong winds in the evening are 
  likely with gusts of 50 to 60 mph in the valley and to 70 mph 
  near Mt Charleston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

CAZ522-NVZ014-015-210000-
/O.CON.KVEF.HW.W.0006.230821T0000Z-230821T1500Z/
Death Valley National Park-Esmeralda and Central Nye County-
Lincoln County-
Including Furnace Creek, Stovepipe Wells, Shoshone, Beatty, 
Goldfield, Silver Peak, Dyer, Caliente, Pioche, Panaca, Hiko, 
Alamo, and Rachel
1245 PM PDT Sun Aug 20 2023

...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 8 AM PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...In California, Death Valley National Park. In Nevada, 
  Esmeralda and Central Nye County and Lincoln County.

* WHEN...From 5 PM this afternoon to 8 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
190 
WWUS75 KVEF 202319
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
419 PM PDT Sun Aug 20 2023

AZZ001>003-036-CAZ523>527-NVZ021-022-211200-
/O.CON.KVEF.HW.W.0006.000000T0000Z-230821T1200Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-Cadiz Basin-
San Bernardino County-Upper Colorado River Valley-
Southern Clark County-
Including Colorado City, Pipe Spring National Monument, Tuweep, 
Mt Trumbull, Western Grand Canyon, Lake Havasu City, 
Desert Hills, Topock, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, 
Barstow, Daggett, Fort Irwin, Baker, Mountain Pass, 
Mitchell Caverns, Morongo Valley, Yucca Valley, Twentynine Palms,
Vidal Junction, Needles, Hoover Dam, Laughlin, Primm, 
Searchlight, and Cal-Nev-Ari
419 PM PDT Sun Aug 20 2023 /419 PM MST Sun Aug 20 2023/

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Mohave County in Northwest Arizona...most of San 
  Bernardino County in California...and far southern Clark 
  County in Nevada. This includes Lake Mead and Lake Mohave 
  National Recreation areas.

* WHEN...Through 5 AM Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are possible. Travel will be 
  difficult, especially for high profile vehicles. Docked boats 
  and marinas may experience damage from high winds.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

NVZ016>020-211200-
/O.CON.KVEF.HW.W.0006.000000T0000Z-230821T1200Z/
Northeast Clark County-Western Clark and Southern Nye County-
Sheep Range-Spring Mountains-Red Rock Canyon-Las Vegas Valley-
Including Mesquite, Overton, Moapa, Pahrump, Indian Springs, 
Desert Rock, Amargosa Valley, Hayford Pk, 
The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, 
North Las Vegas, Henderson, and Boulder City
419 PM PDT Sun Aug 20 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected. Wind gusts to 70 mph possible near Mt. Charleston.

* WHERE...Northeast Clark County, Western Clark and Southern Nye 
  County, Sheep Range, Spring Mountains-Red Rock Canyon and Las 
  Vegas Valley.

* WHEN...Through 5 AM PDT Monday.

* IMPACTS...Damaging winds may blow down trees. Power outages 
  are possible. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...Strong winds will be relatvely brief as 
  the remains of decaying Hilary lift through the western Mojave 
  Desert. Several hours of strong winds in the evening are 
  likely with gusts of 50 to 60 mph in the valley and to 70 mph 
  near Mt Charleston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

CAZ522-NVZ014-015-211500-
/O.CON.KVEF.HW.W.0006.230821T0000Z-230821T1500Z/
Death Valley National Park-Esmeralda and Central Nye County-
Lincoln County-
Including Furnace Creek, Stovepipe Wells, Shoshone, Beatty, 
Goldfield, Silver Peak, Dyer, Caliente, Pioche, Panaca, Hiko, 
Alamo, and Rachel
419 PM PDT Sun Aug 20 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PDT MONDAY...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...In California, Death Valley National Park. In Nevada, 
  Esmeralda and Central Nye County and Lincoln County.

* WHEN...From 5 PM this afternoon to 8 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
359 
WWUS75 KVEF 210824
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
124 AM PDT Mon Aug 21 2023

AZZ001>003-036-CAZ523>527-NVZ016-020>022-210930-
/O.CAN.KVEF.HW.W.0006.000000T0000Z-230821T1200Z/
Northwest Plateau-Lake Havasu and Fort Mohave-Northwest Deserts-
Lake Mead National Recreation Area-Western Mojave Desert-
Eastern Mojave Desert-Morongo Basin-Cadiz Basin-
San Bernardino County-Upper Colorado River Valley-
Northeast Clark County-Las Vegas Valley-Southern Clark County-
Including Colorado City, Pipe Spring National Monument, Tuweep, 
Mt Trumbull, Western Grand Canyon, Lake Havasu City, 
Desert Hills, Topock, Kingman, Golden Valley, Dolan Springs, 
Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, 
Barstow, Daggett, Fort Irwin, Baker, Mountain Pass, 
Mitchell Caverns, Morongo Valley, Yucca Valley, Twentynine Palms,
Vidal Junction, Needles, Mesquite, Overton, Moapa, Las Vegas, 
North Las Vegas, Henderson, Boulder City, Hoover Dam, Laughlin, 
Primm, Searchlight, and Cal-Nev-Ari
124 AM PDT Mon Aug 21 2023 /124 AM MST Mon Aug 21 2023/

...HIGH WIND WARNING IS CANCELLED...

Breezy conditions persist this morning but have diminished below 
58 mph gust thresholds across the Mojave Desert and Colorado River
Valley. The High Wind Warning will be cancelled early. 

$$

CAZ522-210930-
/O.CAN.KVEF.HW.W.0006.000000T0000Z-230821T1500Z/
Death Valley National Park-
Including Furnace Creek, Stovepipe Wells, and Shoshone
124 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING IS CANCELLED...

High winds are not longer expected in eastern Inyo County.

$$

NVZ017>019-211200-
/O.CON.KVEF.HW.W.0006.000000T0000Z-230821T1200Z/
Western Clark and Southern Nye County-Sheep Range-
Spring Mountains-Red Rock Canyon-
Including Pahrump, Indian Springs, Desert Rock, Amargosa Valley, 
Hayford Pk, The Town Of Mt Charleston, and Red Rock Canyon
124 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT EARLY THIS
MORNING...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected. Wind gusts to 70 mph possible near Mt. Charleston.

* WHERE...Southern Nye County, Sheep Range, and Spring Mountains.

* WHEN...Through 5 AM PDT Monday.

* IMPACTS...Damaging winds may blow down trees. Power outages are
  possible. Travel will be difficult, especially for high profile
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

NVZ014-015-211500-
/O.CON.KVEF.HW.W.0006.000000T0000Z-230821T1500Z/
Esmeralda and Central Nye County-Lincoln County-
Including Beatty, Goldfield, Silver Peak, Dyer, Caliente, Pioche,
Panaca, Hiko, Alamo, and Rachel
124 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS
MORNING...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...In Nevada, Esmeralda and Central Nye County and Lincoln
  County.

* WHEN...From 5 PM this afternoon to 8 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
111 
WWUS75 KVEF 211155
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
455 AM PDT Mon Aug 21 2023

NVZ017>019-211300-
/O.EXP.KVEF.HW.W.0006.000000T0000Z-230821T1200Z/
Western Clark and Southern Nye County-Sheep Range-
Spring Mountains-Red Rock Canyon-
Including Pahrump, Indian Springs, Desert Rock, Amargosa Valley, 
Hayford Pk, The Town Of Mt Charleston, and Red Rock Canyon
455 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING WILL EXPIRE AT 5 AM PDT EARLY THIS MORNING...

High Wind warning will be allowed to expire as winds have eased
below thresholds.

$$

NVZ014-015-211500-
/O.CON.KVEF.HW.W.0006.000000T0000Z-230821T1500Z/
Esmeralda and Central Nye County-Lincoln County-
Including Beatty, Goldfield, Silver Peak, Dyer, Caliente, Pioche,
Panaca, Hiko, Alamo, and Rachel
455 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS
MORNING...

* WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...In Nevada, Esmeralda and Central Nye County and 
  Lincoln County.

* WHEN...From 5 PM this afternoon to 8 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take action to secure trash cans, lawn furniture, and other
lightweight fixtures and unsecured outdoor objects. Operators of
motorcycles, vans, campers, trailers, and other high profile
vehicles should be especially cautious for the possibility of
sudden, strong crosswinds and be prepared for areas of blowing
dust which could drastically reduce visibility.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
660 
WWUS75 KVEF 211211
NPWVEF

URGENT - WEATHER MESSAGE
National Weather Service Las Vegas NV
511 AM PDT Mon Aug 21 2023

NVZ014-015-211315-
/O.CAN.KVEF.HW.W.0006.000000T0000Z-230821T1500Z/
Esmeralda and Central Nye County-Lincoln County-
Including Beatty, Goldfield, Silver Peak, Dyer, Caliente, Pioche,
Panaca, Hiko, Alamo, and Rachel
511 AM PDT Mon Aug 21 2023

...HIGH WIND WARNING IS CANCELLED...

Winds have decreased below high wind thresholds across the
southern Great Basin and the warning has been cancelled early.

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this high wind warning went out at Aug 19, 1:38 PM MST, 11 hours 33 minutes earlier.

Area forecast discussion, Aug 19, 1:38 PM MST, 11 hours 33 minutes before
Area Forecast Discussion
National Weather Service Las Vegas NV
138 PM PDT Sat Aug 19 2023

.SYNOPSIS...Rich moisture related to approaching Tropical Cyclone
Hilary will begin to advance into the Mojave Desert today with
increasing shower and thunderstorm activity expected. This trend
will continue into Sunday as the remnants of Hilary lift
northward. Widespread heavy rain, gusty winds, and instances of
major flooding are expected. Hilary's remains will exit the
region by Monday but moist monsoonal conditions will persist much
of the week with daily storm chances and temperatures remaining
below normal.

&&

.SHORT TERM...through Monday night.

Our region still on track to see historic rainfall through Monday
which will lead to significant flash flooding for parts of the
Great Basin and Mojave Desert.

Currently, Category 2 Hurricane Hilary lies off the southern Baja
Peninsula. Satellite shows a considerable amount of mid/high clouds
already streaming northward into the region. What has changed from
last nights update is that the official track shifted slightly to
the east. In intensity, Hilary is forecast to be tropical storm
strength as it reaches southern California Sunday afternoon. Hilary
will go through further weakening as it moves rapidly northward at
around 30 kts becoming extra-tropical Monday.

Precipitable water values are currently 150-250% of normal across
southern California. As Hilary approaches those values rise to 250-
300% of normal across a large swath of western San Bernardino, Inyo,
southern Nye and Esmeralda Counties. This coincides well with WPC's
Excessive Rainfall Outlook of Moderate to High Risk for those
regions. QPF Outlook still paints 2-4" in the lower elevations and
4" up to as much a 10" for the mountains in those risk area. Eastern
Clark and Mohave Counties remain of the eastern side of the heaviest
rainfall predictions, falling somewhere between 1-2" possible. This
will likely come in several rounds, particularly tonight-Sunday
morning and again Sunday night through Monday morning, then tapering
off Monday afternoon and evening.

Regarding wind threat. With Hilary forecast to be tropical storm
strength as it arrives in southern California Sunday afternoon
guidance continues to support sub-tropical storm strength south to
southeast winds across southern San Bernardino County, lower
Colorado River Valley and southern Mohave County. However, there
remains some uncertainty in how strong these winds will be as Hilary
may interact with the Baja Peninsula and weaken over the next 36
hours. Would like to wait at least 1 more model run before we
consider wind advisories or even a short fused high wind warning for
southern San Bernardino and southern Mohave Counties late Sunday
afternoon and night.

Temperatures through the short term period will be well below
normal thanks to the abundance of clouds and moisture, with high
temperatures Sunday likely to challenge record daily low maximum
temperatures for many areas.

.LONG TERM...Tuesday through Saturday.

Following the exit of what is left of Hilary on Monday, widespread
low level moisture will remain in place. Synoptically, an
expansive ridge will remain parked over the central US with a
southerly flow featured across the southwestern states. This will
result in at least low-grade monsoonal conditions persisting most
of next week, with daily storm chances favored in the higher
terrain, but possibly drifting into the lower elevations in the
afternoon and evening hours. Subtle shortwave features embedded
in the flow may also result in some days being more active than
others and promote more lower elevation activity. For now, NBM
PoPs keep fairly generous storm chances going through the week
across Northwest Arizona and southern Nevada, with slight chances
across most of southeast California. With the abundance of
moisture and continued daily storm activity, temperatures remain
cooler than average by 5-10 degrees, but should trend warmer
heading into the end of the week.

&&

.AVIATION...For Harry Reid...Dense overcast likely will limit
any convection in and around Las Vegas the rest of this afternoon
and evening. Leading edge of deeper moisture ahead of Hilary will
arrive this evening and continue into Sunday morning with periods of
moderate rainfall, lower cigs and lower visibility. Prevailing
visibility will be 3-5SM with cigs around 3-4 kft, but they could
potentially fall below 3 kft. Air mass looks to become more unstable
Sunday afternoon with breaks in the clouds as several bands around a
decaying Hilary pass across southern Nevada. Prevailing winds should
remain less than 10 kts and favor an east to southeast component
this afternoon.

For the rest of southern Nevada, northwest Arizona and southeast
California...Scattered thunderstorms are expected across the region
once again today.  The best chance is into this evening across
northwest Arizona and Inyo County. Any storms that do develop will
be capable of producing gusty, erratic winds. Away from thunderstorm
activity, winds of less the 10kts generally from the east and
southeast can be expected. Moisture from Hilary will begin to spread
across the area this evening into Sunday, resulting in steady light
to moderate rain developing from south to north. In addition to the
moderate rain reduced visibilities down to 2 to 4 SM at times and
CIGs less than 2kft will be possible, with the degraded conditions
continuing into Sunday night.
&&

.SPOTTER INFORMATION STATEMENT...Heavy rain, high winds, and
flash flooding reports are requested through the weekend as the
remains of Hurricane Hilary lift through the Western Mojave
Desert.

&&

SHORT TERM/AVIATION...Pierce
LONG TERM...Outler

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

In the hours before

Local storm report, Aug 19, 7:28 PM MST, 5 hours 43 minutes before
Preliminary Local Storm Report
National Weather Service Las Vegas NV
728 PM PDT Sat Aug 19 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0632 PM     Flash Flood      10 SSW Moapa            36.55N 114.69W
08/19/2023                   Clark              NV   Dept of Highways

            Eastbound Ute Road is closed at northbound
            Interstate 15 due to flooding.

0307 PM     Flash Flood      4 SSE Lone Pine         36.54N 118.05W
08/19/2023                   Inyo               CA   Dept of Highways

            Department of Highways reports roadway
            flooding at US-395 and Boulder Creek.

0332 PM     Flash Flood      Lone Pine               36.60N 118.06W
08/19/2023                   Inyo               CA   Law Enforcement

            California Highway Patrol reports flooding
            in the second south bound lane.

0457 PM     Flash Flood      11 ENE Panamint Springs 36.40N 117.28W
08/19/2023                   Inyo               CA   Law Enforcement

            California Highway Patrol reports rocks and
            debris blocking the roadway.

&&

MS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 9:00 AM MSTAreal Flood AdvisoryVEFInyo, San Bernardino6 hr
Aug 20, 9:47 AM MSTAreal Flood AdvisoryVEFSan Bernardino4 hr
Aug 20, 2:31 PM MSTFlash Flood Warning Considerable damage threatVEFSan Bernardino4 hr
Aug 20, 3:10 PM MSTFlash Flood Warning Considerable damage threatVEFInyo, San Bernardino18 hr
Aug 20, 3:24 PM MSTFlash Flood Warning Considerable damage threatVEFInyo8 hr
Aug 20, 4:00 PM MSTFlash Flood Warning Considerable damage threatVEFSan Bernardino3 hr

Nearby

High Wind Warnings in Nevada, 2023High Wind Warnings in California, 2023High Wind Warnings in Arizona, 2023Every high wind warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.