Alert archive / Nevada / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 39, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 25, 2021, 2:53 PM PDT for Clark County, Nevada; Mohave County, Arizona. It was in force for 67 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
- Jul 25, 2021, 2:53 PM PDT (21:53 UTC)
- Expired
- Jul 25, 2021, 4:00 PM PDT
- In force
- 67 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Mohave County, AZ, Clark County, NV
The radar
The Las Vegas radar (KESX), 81 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 118 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
- 97 J/kg
- Mixed-layer CIN
- -248 J/kg
- Mixed-layer LCL
- 2117 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
179
WUUS55 KVEF 252153
SVRVEF
AZC015-NVC003-252300-
/O.NEW.KVEF.SV.W.0039.210725T2153Z-210725T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
253 PM PDT Sun Jul 25 2021
The National Weather Service in Las Vegas has issued a
* Severe Thunderstorm Warning for...
Northwestern Mohave County in northwestern Arizona...
Northeastern Clark County in southern Nevada...
* Until 400 PM PDT/400 PM MST/.
* At 252 PM PDT/252 PM MST/, a severe thunderstorm was located 10
miles northwest of South Cove, or 24 miles southeast of Overton,
moving southwest at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs and trees.
* Locations impacted include...
Las Vegas Bay, Echo Bay, Boulder Beach, Grand Canyon Skywalk,
Boulder Beach Campground, Pierce Ferry And Antares Roads, Echo Bay
Campground, Callville Bay, Meadview, Hoover Dam, Grand Canyon
Ranch, Valley Of Fire, Callville Bay Campground, Lake Mead National
Recreation Area, Temple Bar Campground, Dolan Springs, Overton
Beach, South Cove, Willow Beach and Temple Bar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
&&
LAT...LON 3667 11397 3577 11358 3552 11445 3612 11487
3645 11459
TIME...MOT...LOC 2152Z 064DEG 34KT 3627 11416
HAIL...1.00IN
WIND...60MPH
$$
DSB2 follow-up statements
008
WWUS55 KVEF 252231
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
331 PM PDT Sun Jul 25 2021
AZC015-NVC003-252300-
/O.CON.KVEF.SV.W.0039.000000T0000Z-210725T2300Z/
Mohave AZ-Clark NV-
331 PM PDT Sun Jul 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM
PDT/400 PM MST/ FOR NORTHWESTERN MOHAVE AND NORTHEASTERN CLARK
COUNTIES...
At 330 PM PDT/330 PM MST/, a severe thunderstorm was located 9 miles
east of Callville Bay Campground, or 16 miles east of Las Vegas Bay,
moving southwest at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs and trees.
Locations impacted include...
Las Vegas Bay, Echo Bay, Boulder Beach, Boulder Beach Campground,
Echo Bay Campground, Callville Bay, Meadview, Hoover Dam, Valley Of
Fire, Callville Bay Campground, Temple Bar Campground, Overton Beach,
South Cove, Lake Mead National Recreation Area and Temple Bar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
If on or near Lake Mead, get away from the water and move indoors or
inside a vehicle. remember, lightning can strike out to 15 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
&&
LAT...LON 3667 11397 3600 11391 3593 11474 3612 11487
3645 11459
TIME...MOT...LOC 2230Z 064DEG 34KT 3610 11456
HAIL...<.75IN
WIND...60MPH
$$
DSB717
WWUS55 KVEF 252252
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
352 PM PDT Sun Jul 25 2021
AZC015-NVC003-252302-
/O.EXP.KVEF.SV.W.0039.000000T0000Z-210725T2300Z/
Mohave AZ-Clark NV-
352 PM PDT Sun Jul 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MOHAVE AND
NORTHEASTERN CLARK COUNTIES WILL EXPIRE AT 400 PM PDT/400 PM MST/...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire.
LAT...LON 3667 11397 3600 11391 3593 11474 3612 11487
3645 11459
TIME...MOT...LOC 2252Z 064DEG 34KT 3605 11469
$$
DSBThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 5:42 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 48 min |
| Jul 24, 5:53 PM PDT | Flash Flood Warning | VEF | Clark | 74 min |
| Jul 25, 12:19 PM PDT | Flash Flood Watch | VEF | Clark, Esmeralda, Nye | 32 hr |
| Jul 25, 3:44 PM PDT | Areal Flood Advisory | VEF | Mohave | 3 hr |
| Jul 25, 3:59 PM PDT | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 25, 4:21 PM PDT | Flash Flood Warning | VEF | Mohave | 2 hr |
Nearby
Severe Thunderstorm Warnings in Nevada, 2021Severe Thunderstorm Warnings in Arizona, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.