Alert archive / California / High Wind Warnings in 2021
High Wind Warning 4, NWS Las Vegas, NV
NWS Las Vegas, NV issued this high wind warning at May 20, 2021, 11:04 AM PDT for San Bernardino County, California. It took effect at May 20, 2021, 2:00 PM PDT. It was in force for 12 hr. 1 report 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
- May 20, 2021, 11:04 AM PDT (18:04 UTC)
- In effect from
- May 20, 2021, 2:00 PM PDT
- Expired
- May 21, 2021, 2:00 AM PDT
- In force
- 12 hr
- Issued by
- NWS Las Vegas, NV
County San Bernardino County, CA
The radar
The Edwards AFB radar (KEYX), 129 km from the middle of the area, began a volume at 18:07 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 20, 4:55 PM PDT | NON-TSTM WND GST 59 | 4 Sse Yermo, CA | BARSTOW-DAGGETT AIRPORT REPORTED A WIND GUST OF 59 MPH. |
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 12:00Z, 6.1 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3149 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
040 WWUS75 KVEF 201804 NPWVEF URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 1104 AM PDT Thu May 20 2021 CAZ523-202100- /O.NEW.KVEF.HW.W.0004.210520T2100Z-210521T0600Z/ /O.EXT.KVEF.WI.Y.0025.000000T0000Z-210520T2100Z/ Western Mojave Desert- Including Barstow, Daggett, and Fort Irwin 1104 AM PDT Thu May 20 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 2 PM PDT THIS AFTERNOON... ...HIGH WIND WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, southwest winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Western Mojave Desert. * WHEN...For the High Wind Warning, until 11 PM PDT this evening. For the Wind Advisory, until 2 PM PDT this afternoon. * 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... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ AZZ001-003-036-CAZ524-NVZ015>022-202100- /O.CON.KVEF.WI.Y.0025.000000T0000Z-210521T0600Z/ Northwest Plateau-Northwest Deserts- Lake Mead National Recreation Area-Eastern Mojave Desert- Lincoln County-Northeast Clark County- Western Clark and Southern Nye County-Sheep Range- Spring Mountains-Red Rock Canyon-Las Vegas Valley- Southern Clark County- Including Colorado City, Pipe Spring National Monument, Tuweep, Mt Trumbull, Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, Baker, Mountain Pass, Mitchell Caverns, Caliente, Pioche, Panaca, Hiko, Alamo, Rachel, Mesquite, Overton, Moapa, Pahrump, Indian Springs, Desert Rock, Amargosa Valley, Hayford Pk, The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, North Las Vegas, Henderson, Boulder City, Hoover Dam, Laughlin, Primm, Searchlight, and Cal-Nev-Ari 1104 AM PDT Thu May 20 2021 /1104 AM MST Thu May 20 2021/ ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT /11 PM MST/ THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of northwest Arizona, southeast California and south central and southern Nevada. * WHEN...Until 11 PM PDT /11 PM MST/ this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ520>522-NVZ014-202100- /O.CON.KVEF.WI.Y.0025.210520T2100Z-210521T0600Z/ Owens Valley-White Mountains of Inyo County- Death Valley National Park-Esmeralda and Central Nye County- Including Bishop, Independence, Lone Pine, Olancha, Westgard Pass, Bristlecone Pine, Furnace Creek, Stovepipe Wells, Shoshone, Beatty, Goldfield, Silver Peak, and Dyer 1104 AM PDT Thu May 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Nevada, Esmeralda and Central Nye County. In California, Death Valley National Park, White Mountains of Inyo County and Owens Valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
3 follow-up statements
021 WWUS75 KVEF 202051 NPWVEF URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 151 PM PDT Thu May 20 2021 CAZ523-210600- /O.EXP.KVEF.WI.Y.0025.000000T0000Z-210520T2100Z/ /O.CON.KVEF.HW.W.0004.210520T2100Z-210521T0600Z/ Western Mojave Desert- Including Barstow, Daggett, and Fort Irwin 151 PM PDT Thu May 20 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... ...WIND ADVISORY WILL EXPIRE AT 2 PM PDT THIS AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Western Mojave Desert. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ AZZ001-003-036-CAZ524-NVZ015>022-210600- /O.CON.KVEF.WI.Y.0025.000000T0000Z-210521T0600Z/ Northwest Plateau-Northwest Deserts- Lake Mead National Recreation Area-Eastern Mojave Desert- Lincoln County-Northeast Clark County- Western Clark and Southern Nye County-Sheep Range- Spring Mountains-Red Rock Canyon-Las Vegas Valley- Southern Clark County- Including Colorado City, Pipe Spring National Monument, Tuweep, Mt Trumbull, Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, Baker, Mountain Pass, Mitchell Caverns, Caliente, Pioche, Panaca, Hiko, Alamo, Rachel, 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, Boulder City, Hoover Dam, Laughlin, Primm, Searchlight, and Cal-Nev-Ari 151 PM PDT Thu May 20 2021 /151 PM MST Thu May 20 2021/ ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT /11 PM MST/ THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of northwest Arizona, southeast California and south central and southern Nevada. * WHEN...Until 11 PM PDT /11 PM MST/ this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ520>522-NVZ014-210600- /O.CON.KVEF.WI.Y.0025.210520T2100Z-210521T0600Z/ Owens Valley-White Mountains of Inyo County- Death Valley National Park-Esmeralda and Central Nye County- Including Bishop, Independence, Lone Pine, Olancha, Westgard Pass, Bristlecone Pine, Furnace Creek, Stovepipe Wells, Shoshone, Beatty, Goldfield, Silver Peak, and Dyer 151 PM PDT Thu May 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Nevada, Esmeralda and Central Nye County. In California, Death Valley National Park, White Mountains of Inyo County and Owens Valley. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
861 WWUS75 KVEF 210529 NPWVEF URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 1029 PM PDT Thu May 20 2021 CAZ523-210900- /O.EXT.KVEF.HW.W.0004.000000T0000Z-210521T0900Z/ Western Mojave Desert- Including Barstow, Daggett, and Fort Irwin 1029 PM PDT Thu May 20 2021 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 2 AM PDT FRIDAY... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Western Mojave Desert. * WHEN...Extended until 2 AM PDT Friday. * 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... People should avoid being around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ AZZ001-003-036-CAZ520>522-524-NVZ014>022-210900- /O.EXT.KVEF.WI.Y.0025.000000T0000Z-210521T0900Z/ Northwest Plateau-Northwest Deserts- Lake Mead National Recreation Area-Owens Valley- White Mountains of Inyo County-Death Valley National Park- Eastern Mojave Desert-Esmeralda and Central Nye County- Lincoln County-Northeast Clark County- Western Clark and Southern Nye County-Sheep Range- Spring Mountains-Red Rock Canyon-Las Vegas Valley- Southern Clark County- Including Colorado City, Pipe Spring National Monument, Tuweep, Mt Trumbull, Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, Bishop, Independence, Lone Pine, Olancha, Westgard Pass, Bristlecone Pine, Furnace Creek, Stovepipe Wells, Shoshone, Baker, Mountain Pass, Mitchell Caverns, Beatty, Goldfield, Silver Peak, Dyer, Caliente, Pioche, Panaca, Hiko, Alamo, Rachel, Mesquite, Overton, Moapa, Pahrump, Indian Springs, Desert Rock, Amargosa Valley, Hayford Pk, The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, North Las Vegas, Henderson, Boulder City, Hoover Dam, Laughlin, Primm, Searchlight, and Cal-Nev-Ari 1029 PM PDT Thu May 20 2021 /1029 PM MST Thu May 20 2021/ ...WIND ADVISORY NOW IN EFFECT UNTIL 2 AM PDT /2 AM MST/ FRIDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Portions of northwest Arizona, southeast California and south central and southern Nevada. * WHEN...Extended until 2 AM PDT /2 AM MST/ Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
455 WWUS75 KVEF 210855 NPWVEF URGENT - WEATHER MESSAGE National Weather Service Las Vegas NV 155 AM PDT Fri May 21 2021 CAZ523-211000- /O.EXP.KVEF.HW.W.0004.000000T0000Z-210521T0900Z/ Western Mojave Desert- Including Barstow, Daggett, and Fort Irwin 155 AM PDT Fri May 21 2021 ...HIGH WIND WARNING WILL EXPIRE AT 2 AM PDT EARLY THIS MORNING... Wind speeds across the western Mojave Desert have been trending downward early this morning. Though windy conditions will continue overnight, gusts generally less than 40 mph can be expected. $$ AZZ001-003-036-CAZ520>522-524-NVZ014>022-211000- /O.EXP.KVEF.WI.Y.0025.000000T0000Z-210521T0900Z/ Northwest Plateau-Northwest Deserts- Lake Mead National Recreation Area-Owens Valley- White Mountains of Inyo County-Death Valley National Park- Eastern Mojave Desert-Esmeralda and Central Nye County- Lincoln County-Northeast Clark County- Western Clark and Southern Nye County-Sheep Range- Spring Mountains-Red Rock Canyon-Las Vegas Valley- Southern Clark County- Including Colorado City, Pipe Spring National Monument, Tuweep, Mt Trumbull, Western Grand Canyon, Kingman, Golden Valley, Dolan Springs, Valentine, Wikieup, Yucca, Bullhead City, Oatman, Mohave Valley, Bishop, Independence, Lone Pine, Olancha, Westgard Pass, Bristlecone Pine, Furnace Creek, Stovepipe Wells, Shoshone, Baker, Mountain Pass, Mitchell Caverns, Beatty, Goldfield, Silver Peak, Dyer, Caliente, Pioche, Panaca, Hiko, Alamo, Rachel, Mesquite, Overton, Moapa, Pahrump, Indian Springs, Desert Rock, Amargosa Valley, Hayford Pk, The Town Of Mt Charleston, Red Rock Canyon, Las Vegas, North Las Vegas, Henderson, Boulder City, Hoover Dam, Laughlin, Primm, Searchlight, and Cal-Nev-Ari 155 AM PDT Fri May 21 2021 /155 AM MST Fri May 21 2021/ ...WIND ADVISORY WILL EXPIRE AT 2 AM PDT /2 AM MST/ EARLY THIS MORNING... Wind speeds have been trending downward early this morning and across southern Nevada and the surrounding region. Winds will continue to decrease but will not abate entirely. However, gusts will generally decrease to between 20 and 30 mph the rest of the night. $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 3:52 AM PDT | Red Flag Warning | VEF | San Bernardino | 40 hr |
Nearby
High Wind Warnings in California, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.