Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 41, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 25, 2021, 6:01 PM MST for Mohave County, Arizona; Clark County, Nevada. It was in force for 59 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 25, 2021, 6:01 PM MST (01:01 UTC)
- Expired
- Jul 25, 2021, 7:00 PM MST
- In force
- 59 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Mohave County, AZ, Clark County, NV
The radar
The Las Vegas radar (KESX), 39 km from the middle of the area, began a volume at 01:04 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 |
|---|---|---|---|
| Jul 25, 6:57 PM MST | TSTM WND DMG | 1 Ene Cal Nev Ari, NV | NVENERGY REPORTS 205 CUSTOMERS WITHOUT POWER DUE TO THUNDERSTORM WINDS. |
| Jul 25, 7:00 PM MST | TSTM WND DMG | 5 Sse Cottonwood Cove, NV | REPORTS OF VESSELS IN DISTRESS AND NUMEROUS BOAT RESCUES WHERE BOATERS HAD TO BE RETRIEVED FROM THEIR VESSELS AND LEAVE THEIR BOATS BEHIND. |
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, 1.0 hours before the alert went out and 134 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
- 707 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 2729 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
831
WUUS55 KVEF 260101
SVRVEF
AZC015-NVC003-260200-
/O.NEW.KVEF.SV.W.0041.210726T0101Z-210726T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
601 PM PDT Sun Jul 25 2021
The National Weather Service in Las Vegas has issued a
* Severe Thunderstorm Warning for...
West central Mohave County in northwestern Arizona...
South central Clark County in southern Nevada...
* Until 700 PM PDT/700 PM MST/.
* At 559 PM PDT/559 PM MST/, severe thunderstorms were located along
a line extending from 16 miles southeast of Grand Canyon Ranch to
13 miles northeast of Packsaddle Campground to near Hualapai
Mountain Park, moving west at 25 mph.
HAZARD...40 to 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...This storm will produce sudden wind gusts over the
Colorado River from Laughlin to Willow Beach which could
exceed 40 mph. Possible damage to roofs and trees as well.
* Locations impacted include...
Bullhead City, Laughlin, Katherine Landing, Searchlight, Cottonwood
Cove, Cottonwood Cove Campground, Big Bend Rec Area, Cal-Nev-Ari,
Dolan Springs and Golden Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Las Vegas.
Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
If on or near Lake Mohave, get away from 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 3525 11487 3573 11496 3585 11469 3571 11417
3559 11430 3514 11424 3503 11466
TIME...MOT...LOC 0059Z 096DEG 24KT 3578 11373 3556 11396 3508 11391
HAIL...<.75IN
WIND...60MPH
$$
TB32 follow-up statements
934
WWUS55 KVEF 260136
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
636 PM PDT Sun Jul 25 2021
AZC015-NVC003-260200-
/O.CON.KVEF.SV.W.0041.000000T0000Z-210726T0200Z/
Mohave AZ-Clark NV-
636 PM PDT Sun Jul 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM
PDT/700 PM MST/ FOR WEST CENTRAL MOHAVE AND SOUTH CENTRAL CLARK
COUNTIES...
At 635 PM PDT/635 PM MST/, severe thunderstorms were located along a
line extending from 13 miles south of Hoover Dam to 7 miles north of
Cottonwood Cove Campground to near Big Bend Rec Area, moving west
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs and trees.
Locations impacted include...
Bullhead City, Laughlin, Katherine Landing, Searchlight, Cottonwood
Cove, Cottonwood Cove Campground, Big Bend Rec Area, Cal-Nev-Ari,
Dolan Springs and Golden Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Las Vegas.
Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
If on or near Lake Mohave, get away from the water and move indoors
or inside a vehicle. remember, lightning can strike out to 15 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
&&
LAT...LON 3525 11487 3573 11496 3585 11469 3571 11417
3559 11430 3514 11424 3503 11466
TIME...MOT...LOC 0135Z 093DEG 61KT 3584 11466 3560 11467 3506 11462
HAIL...<.75IN
WIND...60MPH
$$
BKP393
WWUS55 KVEF 260158
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
658 PM PDT Sun Jul 25 2021
AZC015-NVC003-260208-
/O.EXP.KVEF.SV.W.0041.000000T0000Z-210726T0200Z/
Mohave AZ-Clark NV-
658 PM PDT Sun Jul 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MOHAVE AND SOUTH
CENTRAL CLARK COUNTIES WILL EXPIRE AT 700 PM PDT/700 PM MST/...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 3525 11487 3573 11496 3585 11469 3571 11417
3559 11430 3514 11424 3503 11466
TIME...MOT...LOC 0158Z 096DEG 24KT 3586 11484 3562 11485 3508 11480
$$
BKPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:04 PM MST | Flash Flood Warning | VEF | Mohave | 5 hr |
| Jul 25, 5:06 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 54 min |
| Jul 25, 5:12 PM MST | Dust Storm Warning | VEF | Mohave | 63 min |
| Jul 25, 5:37 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 25, 7:08 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 52 min |
| Jul 25, 7:57 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 63 min |
| Jul 25, 8:59 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 61 min |
| Jul 25, 10:26 PM MST | Areal Flood Warning | VEF | Mohave | 8 hr |
| Jul 26, 1:51 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 25, 6:06 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 39 min |
| Jul 25, 8:09 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 25, 8:59 PM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 25, 9:55 PM MST | Severe Thunderstorm Warning | VEF | Clark, Nye | 50 min |
| Jul 26, 10:20 AM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 26, 10:44 AM MST | Flash Flood Warning | VEF | Clark | 3 hr |
| Jul 26, 11:32 AM MST | Flash Flood Warning | VEF | Clark, Nye | 4 hr |
| Jul 26, 12:29 PM MST | Flash Flood Warning | VEF | Nye | 3 hr |
| Jul 26, 12:40 PM MST | Flash Flood Warning | VEF | Nye | 3 hr |
| Jul 26, 1:28 PM MST | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Jul 26, 2:05 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 40 min |
| Jul 26, 4:30 PM MST | Flash Flood Warning | VEF | Lincoln | 2 hr |
| Jul 26, 4:34 PM MST | Severe Thunderstorm Warning | VEF | Lincoln | 41 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Severe Thunderstorm Warnings in Nevada, 2021Every severe thunderstorm 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.