Alert archive / Arizona / Dust Storm Warnings in 2018
Dust Storm Warning 21, NWS Las Vegas, NV
NWS Las Vegas, NV issued this dust storm warning at Sep 3, 2018, 4:47 PM MST for Mohave County, Arizona. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 3, 2018, 4:47 PM MST (23:47 UTC)
- Expired
- Sep 3, 2018, 5:45 PM MST
- In force
- 58 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 60 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 111 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
- 89 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 2937 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
025
WWUS55 KVEF 032348
DSWVEF
BULLETIN - EAS ACTIVATION REQUESTED
Dust Storm Warning
National Weather Service Las Vegas NV
447 PM MST Mon Sep 3 2018
AZC015-040045-
/O.NEW.KVEF.DS.W.0021.180903T2347Z-180904T0045Z/
Mohave AZ-
447 PM MST Mon Sep 3 2018
The National Weather Service in Las Vegas has issued a
* Dust Storm Warning for...
Northwestern Mohave County in northwestern Arizona...
* Until 545 PM MST.
* At 447 PM MST, a wall of dust was along a line extending from 19
miles north of Grand Canyon Skywalk to 19 miles northwest of Dolan
Springs, moving northwest at 20 mph.
HAZARD...Near zero visibility with strong wind in excess of 50
mph.
SOURCE...Trained weather spotters.
IMPACT...Dangerous life-threatening travel.
Locations impacted include...
Grand Canyon Ranch, Lake Mead National Recreation Area, Grand Canyon
Skywalk, Temple Bar Campground, Dolan Springs, Pierce Ferry And
Antares Roads, South Cove, Meadview and Temple Bar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not drive into a dust storm. PULL ASIDE STAY ALIVE!
If on or near Lake Mead, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to 15
miles from the parent thunderstorm. If you can hear thunder, you are
close enough to be struck by lightning. Move to safe shelter now! Do
not be caught on the water in a thunderstorm.
&&
LAT...LON 3538 11439 3574 11470 3585 11471 3587 11466
3594 11473 3603 11472 3609 11475 3614 11463
3615 11451 3613 11451 3614 11446 3612 11445
3615 11441 3601 11424 3603 11415 3611 11412
3620 11405 3660 11405 3674 11382 3592 11337
TIME...MOT...LOC 2347Z 149DEG 17KT 3629 11370 3575 11455
$$
ASG2 follow-up statements
385
WWUS55 KVEF 040028
DSWVEF
Dust Storm Warning
National Weather Service Las Vegas NV
525 PM MST Mon Sep 3 2018
AZC015-040045-
/O.CON.KVEF.DS.W.0021.000000T0000Z-180904T0045Z/
Mohave AZ-
525 PM MST Mon Sep 3 2018
...A DUST STORM WARNING REMAINS IN EFFECT UNTIL 545 PM MST FOR
NORTHWESTERN MOHAVE COUNTY...
At 515 PM MST, a local spotter reported visibility at a quarter of a
mile or less near White Hills, AZ. This wall of dust will continue
to track west to northwest and affect areas of Willow Beach and the
Arizona portions of the Lake Mead National Recreation area. This
wall of dust was moving northwest at 20 mph.
HAZARD...Near zero visibility with strong wind in excess of 50
mph.
SOURCE...Trained weather spotters.
IMPACT...Dangerous life-threatening travel.
Locations impacted include...
Grand Canyon Ranch, Lake Mead National Recreation Area, Grand Canyon
Skywalk, Temple Bar Campground, Dolan Springs, Pierce Ferry And
Antares Roads, South Cove, Meadview and Temple Bar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not drive into a dust storm. PULL ASIDE STAY ALIVE!
If on or near Lake Mead, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 15 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
&&
LAT...LON 3538 11439 3574 11470 3585 11471 3587 11466
3594 11473 3603 11472 3609 11475 3614 11463
3615 11451 3613 11451 3614 11446 3612 11445
3615 11441 3601 11424 3603 11415 3611 11412
3620 11405 3660 11405 3674 11382 3592 11337
TIME...MOT...LOC 0025Z 149DEG 17KT 3642 11379 3588 11464
$$530
WWUS55 KVEF 040045
DSWVEF
Dust Storm Warning
National Weather Service Las Vegas NV
545 PM MST Mon Sep 3 2018
AZC015-040055-
/O.EXP.KVEF.DS.W.0021.000000T0000Z-180904T0045Z/
Mohave AZ-
545 PM MST Mon Sep 3 2018
...THE DUST STORM WARNING FOR NORTHWESTERN MOHAVE COUNTY HAS
EXPIRED...
The dust storm which prompted the warning has weakened. Therefore,
the dust storm warning has been allowed to expire. Areas of blowing
dust will continue to make travel difficult.
LAT...LON 3538 11439 3574 11470 3585 11471 3587 11466
3594 11473 3603 11472 3609 11475 3614 11463
3615 11451 3613 11451 3614 11446 3612 11445
3615 11441 3601 11424 3603 11415 3611 11412
3620 11405 3660 11405 3674 11382 3592 11337
TIME...MOT...LOC 0045Z 149DEG 17KT 3644 11380 3590 11466
$$The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 1:10 PM MST | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Sep 3, 3:05 PM MST | Flash Flood Warning | VEF | Mohave | 115 min |
| Sep 3, 4:36 PM MST | Flash Flood Warning | VEF | Mohave | 114 min |
Nearby
Dust Storm Warnings in Arizona, 2018Every dust storm warning 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.