879
FXUS65 KVEF 170403
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
900 PM PDT Wed Sep 16 2026

.KEY MESSAGES...

* Isolated-to-scattered showers and thunderstorms arrive this
  afternoon and linger into Thursday morning with a focus across our
  eastern zones.

* Elsewhere, expect breezy to south-southwesterly wind gusts until
  the weekend with dry conditions and near-normal temperatures.

&&

.DISCUSSION...Today through Tuesday.

Shower and storm activity looks to build this afternoon in Mohave Co
with initial convection starting southeast of Lake Havasu and
spreading north through the late afternoon, and reaching Lincoln Co
into the night. Fairly strong CAPE is making a good environment for
thunderstorm growth, but the lack of sheer may prevent some storms
from reaching severe status. The main threat from these storms looks
to be the potential for flooding as storms could train over certain
areas. Additional threats will be frequent lighting and locally
strong gusts from stronger cells. While Mohave and Lincoln counties
look to be the focus of the convection, isolated cells could cross
into Clark Co, along with a few storms building along higher terrain
in western Clark Co into Nye Co. Shower activity will stay with
Lincoln and Clark counties through the night and through much of
Thursday morning before dissipating.


The active weather this afternoon and through the night comes along
a pattern shift with a low passing over the area and a period of
troughing to follow. This pattern will favor windy conditions today
and tonight with widespread winds reaching 20 mph and gusts peaking
around 35 mph. Some of the favored gaps and passes along with higher
terrain could briefly exceed 40 mph gusts. Winds look to reduce
slightly for most areas into the night, but the higher terrain will
stay windy. Widespread gusts will pickup again Thursday afternoon,
but uniformly reduce that night. Friday afternoon looks to be breezy
as well, but overall winds ease into the weekend itself. The
troughing pattern will keep high temperatures close to average for
this time of year, but lows will still trend on the warmer side.



&&

.AVIATION...For Harry Reid...For the 06Z Forecast Package...
Evening thunderstorm activity will gradually wane after 06Z with
just a few storms remaining over Lincoln and northern Mohave
counties affecting the Mormon Mesa corridor overnight. Otherwise,
look for FEW clouds around 10kft. Southeast winds around 10-15 knots
with a few gusts to around 20 knots will become south to southwest
overnight and decrease to around 10 knots overnight. Similar wind
pattern expected tomorrow with light southeast winds during the
morning, increasing after 16z, then shifting to the south to
southwest after 19Z with speeds 15-25 knots. A few storms are
possible over northern Mohave County in the afternoon, but impacts
are not likely.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Gusty south to southwest
winds are expected over most TAF sites overnight with gusts
approaching 25 knots. Winds at KDAG will be more westerly with gusts
around 25 knots. Skies will generally be clear for KBIH and KDAG
with FEW clouds at 10kft for the Las Vegas Valley TAF sites along
with KEED and KIFP. Similar wind conditions are expected Thursday
with gusty southwest to west winds after 19Z. A few storms are
possible over Mohave County, but are not expected to impact any TAF
site.

&&

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

&&

$$

DISCUSSION...Murdock
AVIATION...Gorelow

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