Alert archive / California / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 49, NWS Las Vegas, NV

August 25, 2025San Bernardino County, California

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 25, 2025, 5:01 PM PDT for San Bernardino County, California. It was in force for 44 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: Aug 25, 2025, 5:01 PM PDT (00:01 UTC)
Expired: Aug 25, 2025, 5:45 PM PDT
In force: 44 min
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County San Bernardino County, CA

The radar

The Edwards AFB radar (KEYX), 13 km from the middle of the area, began a volume at 00:01 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 0.0 hours before the alert went out and 219 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3074 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

207 
WUUS55 KVEF 260001
SVRVEF
CAC071-260045-
/O.NEW.KVEF.SV.W.0049.250826T0001Z-250826T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
501 PM PDT Mon Aug 25 2025

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  West central San Bernardino County in southern California...

* Until 545 PM PDT.

* At 501 PM PDT, a severe thunderstorm was located 13 miles southeast
  of Randsburg, or 30 miles south of Ridgecrest, moving northeast at
  25 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.

* This severe thunderstorm will remain over mainly rural areas of
  west central San Bernardino County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3541 11763 3546 11737 3529 11711 3492 11743
      3490 11756 3501 11764
TIME...MOT...LOC 0001Z 217DEG 20KT 3521 11752 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Nickerson

3 follow-up statements

181 
WUUS55 KVEF 260004 CCA
SVRVEF
CAC071-260045-
/O.COR.KVEF.SV.W.0049.250826T0001Z-250826T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
504 PM PDT Mon Aug 25 2025

The National Weather Service in Las Vegas has issued a

* Severe Thunderstorm Warning for...
  West central San Bernardino County in southern California...

* Until 545 PM PDT.

* At 501 PM PDT, a severe thunderstorm was located 13 miles southeast
  of Randsburg, or 30 miles south of Ridgecrest, moving northeast at
  25 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...
  Kramer Junctions. This included Highway 395 between mile markers 
  36 and 69.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3541 11763 3546 11737 3529 11711 3492 11743
      3490 11756 3501 11764
TIME...MOT...LOC 0001Z 217DEG 20KT 3521 11752 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Nickerson

107 
WWUS55 KVEF 260026
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
526 PM PDT Mon Aug 25 2025

CAC071-260045-
/O.CON.KVEF.SV.W.0049.000000T0000Z-250826T0045Z/
San Bernardino CA-
526 PM PDT Mon Aug 25 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM PDT
FOR WEST CENTRAL SAN BERNARDINO COUNTY...

At 525 PM PDT, a severe thunderstorm was located 12 miles southeast
of Randsburg, or 28 miles south of Ridgecrest, and is nearly
stationary.

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...
  Kramer Junctions. This included Highway 395 between mile markers 
  36 and 69.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3541 11763 3546 11737 3529 11711 3492 11743
      3490 11756 3501 11764
TIME...MOT...LOC 0025Z 217DEG 20KT 3525 11748 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Nickerson

206 
WWUS55 KVEF 260042
SVSVEF

Severe Weather Statement
National Weather Service Las Vegas NV
542 PM PDT Mon Aug 25 2025

CAC071-260052-
/O.EXP.KVEF.SV.W.0049.000000T0000Z-250826T0045Z/
San Bernardino CA-
542 PM PDT Mon Aug 25 2025

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL SAN BERNARDINO
COUNTY WILL EXPIRE AT 545 PM PDT...

The storm which prompted the warning has weakened, and no longer
poses an immediate threat to life or property. Therefore, the 
warning will be allowed to expire.  However, gusty winds over 40 
mph are still possible with this thunderstorm.

&&

LAT...LON 3541 11763 3546 11737 3529 11711 3492 11743
      3490 11756 3501 11764
TIME...MOT...LOC 0042Z 217DEG 20KT 3531 11743 

$$

Nickerson

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 2:34 PM PDT, 2 hours 27 minutes earlier. Its key messages:

* Widespread showers and thunderstorms continue through Monday night, with best chances of flash flooding beneath training storms or storms anchored to high terrain as well as for far southern San Bernardino County. Showers and thunderstorms are most likely on Tuesday with decreasing chances through the rest of the week. * Temperatures will be much cooler on Tuesday than in it has been lately. However temperatures will rebound and approach seasonal norms by the weekend.

Area forecast discussion, Aug 25, 2:34 PM PDT, 2 hours 27 minutes before

Area Forecast Discussion
National Weather Service Las Vegas NV
234 PM PDT Mon Aug 25 2025

.KEY MESSAGES...

* Widespread showers and thunderstorms continue through Monday
  night, with best chances of flash flooding beneath training storms
  or storms anchored to high terrain as well as for far southern San
  Bernardino County. Showers and thunderstorms are most likely on
  Tuesday with decreasing chances through the rest of the week.

* Temperatures will be much cooler on Tuesday than in it has been
  lately. However temperatures will rebound and approach seasonal
  norms by the weekend.

.DISCUSSION...Today through Monday

Thunderstorm activity has been focused mainly along the higher
terrain from northeast Clark county through Lincoln County and along
the Sierra Crest this afternoon. A cloud shield associated with
decaying nocturnal storms last night has limited convection across
most of Clark and Mohave Counties thus far today. Clearing is
southern San Bernardino is providing an opening for strong
thunderstorms in the Morongo Basin and will serve a the focus for
strong storms throughout the evening hours. Sufficient precipitable
water and thermodynamics isolate this area for the potential for
rain rates of 1-2 inches per hour this evening. The chance for
stormy weather continues with an overnight cluster of storms over
Clark and Mohave counties bringing a potential mess for rush hour
Tuesday morning in Las Vegas.

All of this is due to a continued influx of monsoon moisture
compliments of our four corners high, complimented by onshore flow
due to a shortwave trough off the California coast. This southwest
flow is bringing drier air into the area. While this drying reduces
available moisture, it also provides dynamic forcing, creating an
environment where storms can form more easily without the need for
orographic lift. While Tuesday will be the most convectively active
day this week, thunderstorms are possible each day through the
weekend with decreasing chances each day and storms becoming more
and more terrain-driven.

With the influence of the shortwave trough, temperatures will be
cooler across the region on Tuesday. High temperatures will be
around ten degrees below normal Tuesday, although that could vary
widely depending on cloud cover and associated thunderstorm
activity. With fewer clouds and drier air on Wednesday, a warming
trend ensues. Temperatures will rebound slowly approaching
climatologic normal by the weekend.

&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...Showers
and thunderstorms will develop over the mountains by around noon.
Outflow from storms to the south will bring southernly wind to the
terminal by 19Z. Outflow boundaries will be around throughout the
afternoon and evening with primary threats will be erratic gusty
winds and briefly heavy rain with lower ceilings. Another round of
showers and thunderstorms is probable overnight into the early
morning hours Tuesday. Temperatures are forecast remain just below
100F today with even cooler temperatures on Tuesday.

For the rest of southern Nevada, northwestern Arizona and
southeastern California...For the 18Z Forecast Package... Storms
will develop over the higher terrain around noon. These storms will
produce erratic gusty winds along with locally heavy rain, lower
ceilings, and terrain obscuration. Away from thunderstorms, winds
should follow typical patterns with gusts less than 20 knots, and
conditions will be VFR through tonight.
&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.

&&

DISCUSSION/AVIATION...Berc

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

In the hours before

Local storm report, Aug 25, 4:18 PM PDT, 43 minutes before

Preliminary Local Storm Report
National Weather Service Las Vegas NV
418 PM PDT Mon Aug 25 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0347 PM     Flash Flood      2 E Joshua Tree         34.14N 116.28W
08/25/2025                   San Bernardino     CA   Trained Spotter

            CA-62 flooded at White Feather Road.

0347 PM     Tstm Wnd Gst     2 WSW Twentynine Palms  34.13N 116.08W
08/25/2025  M68 MPH          San Bernardino     CA   Trained Spotter

            Trained weather spotter reported a wind gust
            to 68 mph.

0410 PM     Flash Flood      Twentynine Palms        34.14N 116.05W
08/25/2025                   San Bernardino     CA   Law Enforcement

            CA 62 flooded at Adobe Rd in Twentynine
            Palms.

&&

Local storm report, Aug 25, 4:25 PM PDT, 36 minutes before

Preliminary Local Storm Report
National Weather Service Las Vegas NV
425 PM PDT Mon Aug 25 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     Flash Flood      3 W Twentynine Palms    34.14N 116.10W
08/25/2025                   San Bernardino     CA   Broadcast Media

            CA-62 flooded at Encelia Dr. Multiple
            vehicles trapped in fast moving water.

&&

BEP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 5:19 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo, San Bernardino	3 hr
Aug 25, 6:43 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	3 hr
Aug 25, 7:36 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	3 hr
Aug 25, 8:04 PM PDT	Flash Flood Warning Considerable damage threat	VEF	Inyo	3 hr
Aug 26, 1:53 AM PDT	Flood Watch	VEF	Inyo	19 hr
Aug 26, 2:14 PM PDT	Flash Flood Warning Considerable damage threat	VEF	San Bernardino	3 hr
Aug 26, 2:54 PM PDT	Areal Flood Advisory	VEF	San Bernardino	111 min
Aug 26, 4:06 PM PDT	Severe Thunderstorm Warning	VEF	Inyo, San Bernardino	54 min

Nearby

Severe Thunderstorm Warnings in California, 2025 Every severe thunderstorm warning in 2025

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.