Alert archive / Nevada / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 46, NWS Las Vegas, NV

July 25, 2021Clark County, Nye County, Nevada; Inyo County, San Bernardino County, California

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 25, 2021, 9:55 PM PDT for Clark County, Nye County, Nevada; Inyo County, San Bernardino County, California. It was in force for 50 min. 3 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, 9:55 PM PDT (04:55 UTC)
Expired: Jul 25, 2021, 10:45 PM PDT
In force: 50 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Inyo County, CA, San Bernardino County, CA, Clark County, NV, Nye County, NV

What was reported inside it

Time	Report	Where	Remark
Jul 25, 10:23 PM PDT	TSTM WND GST 78	2 Sw Pahrump, NV	CORRECTS PREVIOUS TSTM WND GST REPORT FROM 2 SW PAHRUMP. REPORT SOURCE HAS BEEN CORRECTED TO MESONET. WIND MEASURED AT PAHRUMP VALLEY HIGH SCHOOL. DATA COURTESY OF EARTH NETWORKS.
Jul 25, 10:23 PM PDT	TSTM WND GST 78	2 Sw Pahrump, NV	WIND MEASURED AT PAHRUMP VALLEY HIGH SCHOOL. DATA COURTESY OF EARTH NETWORKS.
Jul 25, 10:30 PM PDT	NON-TSTM WND GST 64	1 Nnw Pahrump, NV	WIND GUST OF 64 MPH REPORTED BY CEMP WEATHER STATION IN PAHRUMP.

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, 4.9 hours before the alert went out and 35 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 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

Open this sounding in Storm Lab

The text

As transmitted.

038 
WUUS55 KVEF 260455
SVRVEF
CAC027-071-NVC003-023-260545-
/O.NEW.KVEF.SV.W.0046.210726T0455Z-210726T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
955 PM PDT Sun Jul 25 2021

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  North central San Bernardino County in southern California...
  Southeastern Inyo County in south central California...
  Northwestern Clark County in southern Nevada...
  Southern Nye County in south central Nevada...

* Until 1045 PM PDT.

* At 951 PM PDT, severe thunderstorms were located along a line 
  extending from near Indian Springs to 7 miles west of Sandy Valley 
  to 11 miles north of Nipton Road Mile Marker 3, moving west at 45 
  mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Pahrump, Beatty, Jean, Shoshone, Furnace Creek, Primm, Mercury,
  Spring Mountains, Sandy Valley, Goodsprings, Texas Springs
  Campground, Indian Springs, Mountain Springs, Mcwilliams
  Campground, Willow Creek Campground, Death Valley Junction,
  Amargosa Valley, Mary Jane Falls Campground, Dolomite Campground
  and Lathrop Wells.

This includes the following highways...
 Interstate 15 in California near mile marker 186.
 Interstate 15 in Nevada between mile markers 1 and 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3719 11589 3684 11590 3685 11574 3675 11569
      3624 11565 3594 11538 3562 11500 3556 11580
      3582 11653 3680 11716 3747 11602
TIME...MOT...LOC 0451Z 087DEG 41KT 3671 11630 3586 11576 3565 11519 

HAIL...<.75IN
WIND...70MPH
 
$$

CP

2 follow-up statements

634 
WWUS55 KVEF 260532
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
1032 PM PDT Sun Jul 25 2021

CAC027-071-NVC003-023-260545-
/O.CON.KVEF.SV.W.0046.000000T0000Z-210726T0545Z/
San Bernardino CA-Inyo CA-Clark NV-Nye NV-
1032 PM PDT Sun Jul 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM PDT
FOR NORTH CENTRAL SAN BERNARDINO...SOUTHEASTERN INYO...NORTHWESTERN
CLARK AND SOUTHERN NYE COUNTIES...

At 1029 PM PDT, severe thunderstorms were located along a line
extending from 15 miles north of Texas Springs Campground to near 
Tecopa to 13 miles northwest of Mountain Pass, moving west at 45 
mph. Strongest winds have been north of Desert Rock where gusts to 
50-57 mph were observed. 

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs and trees.

Locations impacted include...
Pahrump, Beatty, Jean, Shoshone, Furnace Creek, Primm, Mercury,
Spring Mountains, Sandy Valley, Goodsprings, Texas Springs
Campground, Indian Springs, Mountain Springs, Mcwilliams Campground,
Willow Creek Campground, Death Valley Junction, Amargosa Valley, Mary
Jane Falls Campground, Dolomite Campground and Lathrop Wells.

This includes the following highways...
 Interstate 15 in California near mile marker 186.
 Interstate 15 in Nevada between mile markers 1 and 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3719 11589 3684 11590 3685 11574 3675 11569
      3624 11565 3594 11538 3562 11500 3556 11580
      3582 11653 3680 11716 3747 11602
TIME...MOT...LOC 0529Z 087DEG 41KT 3669 11680 3584 11626 3563 11569 

HAIL...<.75IN
WIND...60MPH
 
$$
CP

586 
WWUS55 KVEF 260536
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
1036 PM PDT Sun Jul 25 2021

CAC027-071-NVC003-023-260546-
/O.EXP.KVEF.SV.W.0046.000000T0000Z-210726T0545Z/
San Bernardino CA-Inyo CA-Clark NV-Nye NV-
1036 PM PDT Sun Jul 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SAN
BERNARDINO...SOUTHEASTERN INYO...NORTHWESTERN CLARK AND SOUTHERN NYE
COUNTIES WILL EXPIRE AT 1045 PM PDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

LAT...LON 3719 11589 3684 11590 3685 11574 3675 11569
      3624 11565 3594 11538 3562 11500 3556 11580
      3582 11653 3680 11716 3747 11602
TIME...MOT...LOC 0536Z 087DEG 41KT 3669 11685 3584 11631 3563 11574 

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 5:12 PM PDT	Dust Storm Warning	VEF	Clark	63 min
Jul 25, 5:37 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Lincoln	3 hr
Jul 25, 6:01 PM PDT	Severe Thunderstorm Warning	VEF	Clark	59 min
Jul 25, 6:06 PM PDT	Severe Thunderstorm Warning	VEF	Lincoln	39 min
Jul 25, 7:08 PM PDT	Severe Thunderstorm Warning	VEF	Clark	52 min
Jul 25, 7:57 PM PDT	Severe Thunderstorm Warning	VEF	Clark, Lincoln	63 min
Jul 25, 8:09 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Clark	3 hr
Jul 25, 8:59 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Clark	3 hr
Jul 25, 8:59 PM PDT	Severe Thunderstorm Warning	VEF	Clark, Nye	61 min
Jul 26, 10:20 AM PDT	Flash Flood Warning Considerable damage threat	VEF	Clark	3 hr
Jul 26, 10:44 AM PDT	Flash Flood Warning Considerable damage threat	VEF	Clark	3 hr
Jul 26, 11:32 AM PDT	Flash Flood Warning Considerable damage threat	VEF	Clark, Nye	4 hr
Jul 26, 12:29 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Nye	3 hr
Jul 26, 12:40 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Nye	3 hr
Jul 26, 1:28 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Lincoln	3 hr
Jul 26, 2:05 PM PDT	Severe Thunderstorm Warning	VEF	Lincoln	40 min
Jul 26, 4:30 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Lincoln	2 hr
Jul 26, 4:34 PM PDT	Severe Thunderstorm Warning	VEF	Lincoln	41 min
Jul 25, 6:59 PM PDT	Flash Flood Warning Considerable damage threat	VEF	San Bernardino	3 hr
Jul 25, 11:13 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo, San Bernardino	3 hr
Jul 26, 7:59 AM PDT	Areal Flood Advisory	VEF	San Bernardino	3 hr
Jul 26, 8:12 AM PDT	Flash Flood Warning Considerable damage threat	VEF	San Bernardino	3 hr
Jul 26, 9:26 AM PDT	Areal Flood Advisory	VEF	San Bernardino	3 hr
Jul 26, 11:36 AM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo, San Bernardino	3 hr
Jul 26, 12:51 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo, San Bernardino	3 hr
Jul 26, 1:12 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	4 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2021 Severe Thunderstorm Warnings in California, 2021 Every 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.