Severe Thunderstorm Warning 47, NWS Las Vegas, NV

Area Forecast Discussion
National Weather Service Las Vegas NV
1242 PM PDT Sun Aug 24 2025

.KEY MESSAGES...

* Showers and thunderstorms capable of producing gusty outflow winds
  and flash flooding will continue into the evening, with the
  highest risk for thunderstorms and impacts in Inyo County through
  the Southern Great Basin.

* Another round of showers and thunderstorms is expected on Monday,
  with similar conditions to today but potentially higher
  thunderstorm areal-coverage.

* Chances for showers and thunderstorms will continue through the
  middle of the week, with Tuesday potentially being the peak in
  thunderstorm coverage and impacts. It will then dry out as we
  head into the weekend.

&&

.DISCUSSION...Through Saturday

With a moist atmosphere and ample sunshine to allow for
destabilization- scattered thunderstorms developed across the region
late this morning. Development is expected to continue through the
afternoon with convection favoring the terrain at first. Later this
afternoon, outflow boundaries may allow for additional thunderstorm
development away from terrain. The highest coverage of thunderstorms
should be in the Sierra into northern Inyo and Esmeralda as upslope
flow and a weak piece of energy shifts through the area. With at
least 1.00in PWATs across the region- heavy rain and flash flooding
is possible, especially with nay storms that anchor and train over
terrain. DCAPE will remain over 1500 J/Kg in most location, and the
12Z Las Vegas sounding shows dry low levels as well as some dry air
in the mid levels, so sudden gusty winds over 40 MPH will also be
possible with any storms today. HREF is highlighting probabilities
for sudden gusty winds in the lower Colorado River Valley through
the evening, boaters should be prepared for changing weather
conditions and gusty winds.

After a lull in convection tonight, addition showers and
thunderstorms are expected to develop on Monday.  The heavy rain and
flash flood threat may be lower on Monday compared to today as a bit
of dry air moves into the area, whoever with a weak shortwave and
cooler temperatures aloft moving in as well there will still be some
threat. Thus- conditions on Monday are expected to be fairly similar
to today as HiRes models though coverage of afternoon thunderstorms
may be more widespread than today.

Chances for showers and thunderstorms will continue into the middle
of the week as our anomalous monsoonal moisture sticks around. A
weak shortwave trough will approach the coast of California on
Tuesday, providing additional lift to help fuel showers and
thunderstorms on Tuesday and Wednesday. Ensemble members continue to
highlight Tuesday as the day with the best chances for widespread
convection with showers and thunderstorm activity lingering into
Wednesday and potentially Thursday for portions of the area. Hazards
with these mid-week storms will be similar to today and tomorrow's
convective hazards. Eventually the dry southwesterly flow aloft
resulting from this shortwave will scour moisture from the area with
things drying out as we head into the weekend.
&&

.AVIATION...For Harry Reid...For the 18Z Forecast Package...Showers
and thunderstorms will develop around the terminals this afternoon,
favoring the mountains to the south and west. Low chance for direct
thunderstorms over the terminals today, however nearby convection
could push one or more outflow boundaries toward the terminal,
resulting in sudden erratic wind shifts. Storms will weaken and
dissipate by sunset. Monday is expected to be similar to today but
with higher thunderstorm coverage as well and a higher chance for
thunderstorms over the terminals. Other than sudden gusty winds- any
storms today and Monday could result in heavy rain, lightning, and
CIGs to 10kft. Temperatures are forecast to be above 100F from 19Z
to 04Z, but thunderstorms at or near the terminal could shorten that
time window.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 18Z Forecast Package...Scattered showers and
thunderstorms are expected areawide today, with the greatest threat
and highest thunderstorm coverage expected in the Sierra and
northern Inyo County. Storms today could produce sudden gusty
erratic winds, CIGs to 8kft-10kft, lightning, and heavy rain.
Convection will wane tonight, but addition showers and thunderstorms
are expected across region on Monday. Outside of thunderstorms,
winds should follow typical patterns with speeds to around 10KT with
prevailing VFR conditions. Looking ahead- The threat of afternoon
showers and thunderstorms will continue across the region each day
through at least Wednesday, with the most coverage expected on
Tuesday.
&&

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

&&

DISCUSSION/AVIATION...Nickerson

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

Preliminary Local Storm Report...Summary
National Weather Service Las Vegas NV
1027 AM PDT Sun Aug 24 2025

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

0325 PM     Tstm Wnd Gst     5 E New Kingman-Butler  35.25N 113.93W
08/23/2025  M58 MPH          Mohave             AZ   ASOS

            ASOS station KIGM Kingman Airport with
            visibility reduced to 0.25 miles in blowing
            dust.

0345 PM     Tstm Wnd Dmg     2 ESE New Kingman-Butle 35.25N 113.98W
08/23/2025                   Mohave             AZ   Emergency Mngr

            Downed service poles and trees in northeast
            Kingman.

0405 PM     Tstm Wnd Dmg     2 SSE New Kingman-Butle 35.23N 114.00W
08/23/2025                   Mohave             AZ   Trained Spotter

            Several large tree branches down on Andy
            Devine and Airway.

0444 PM     Tstm Wnd Gst     4 WSW Chloride          35.40N 114.26W
08/23/2025  M65 MPH          Mohave             AZ   Mesonet

            Weather underground site KAZGOLDE82 reported
            a thunderstorm wind gust to 65 mph.

0554 PM     Dust Storm       7 ESE Willow Beach      35.82N 114.55W
08/23/2025                   Mohave             AZ   Trained Spotter

            Spotter report of near zero visibility along
            US-93 north of White Hills. Detrital Wash
            camera and AZdot webcams confirmed very low
            visibility of 0.25 miles or less.

0852 PM     Tstm Wnd Gst     5 NNE Bullhead City     35.17N 114.56W
08/23/2025  M68 MPH          Mohave             AZ   Mesonet

            The Laughlin-Bullhead Airport had a wind
            gust to 68 mph.

0900 PM     Tstm Wnd Dmg     8 NNE Bullhead City     35.22N 114.57W
08/23/2025                   Mohave             AZ   Public

            Social media photos show damage to docks and
            boats in Katherine Landing. Time estimated
            from nearby wind sensors.

&&

MW