310
FXUS65 KVEF 110527
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1026 PM PDT Thu Jul 10 2025


.KEY MESSAGES...

*  Hot and dry conditions will likely continue through the weekend
   and into early next week as ridging persists across the region.

&&

.DISCUSSION...This afternoon through the middle of next week.

Broad ridging will remain over the forecast area into next week,
although the exact placement and intensity of the ridge will vary at
times. Through the weekend, long-range ensembles are in agreement
that the area of high pressure will remain centered over southern
California, maintaining slightly above-normal height anomalies
through Saturday.  This will result in temperatures remaining above
normal, along with keeping light winds and mainly clear skies. By
late in the weekend and early next week, model ensembles indicate
that the ridge will shift eastward, which is expected to increase
temperatures by a few degrees. Patchy areas of Major HeatRisk levels
return Sunday and Monday across the Mojave Desert, and to a lesser
extent in the Colorado River Valley.  Starting from Tuesday on,
heights begin to fall as an easterly wave moving into eastern Mexico
pushes the ridge to the west.  This wave may also introduce some
moisture in the area by the second half of the week, which would
also help to keep readings down. There is also a low chance for
precipitation on Wednesday across northwest Arizona, but confidence
is low on if and where rain may occur.
&&


.AVIATION...For Harry Reid...For the 06Z Forecast Package...Expect
breezy winds around 8 kts with wind directions following typical
diurnal patterns... east-northeasterly picking up late-morning,
southeasterly through the afternoon, and southwesterly around
sunset, with a brief period of light and variable winds in the early
morning. Cannot rule out an occasional gust between 15 and 20 kts
from the southeast between 00 and 03Z with peak heating as winds
veer to the southwest through sunset. Slantwise visibility
reductions expected to the north through the TAF period, with a
possible cloud layer needed over the terminal after sunset on Friday
due to wildfire smoke from Nye County, NV. Otherwise, no
operationally significant cloud cover. Temperatures will exceed 100
degrees on Friday between 18 and 05Z.

For the rest of southern Nevada, northwestern Arizona and
southeastern California...For the 06Z Forecast Package...Expect
breezy winds in the Las Vegas Valley around 8 kts with generally a
diurnal direction trend. Cannot rule out isolated gusts between 15
and 20 kts from the southeast in the late-afternoon before winds
shift southwest. Light and diurnal winds at KBIH. Gusty west winds
persist at KDAG, with a typical decrease expected during the late-
morning and afternoon. Breezy southerly winds expected along the
Colorado River Valley with occasional afternoon gusts around 20 kts.
Slantwise visibility reductions expected across southern Nevada
through the day on Friday, pushing into southeastern California and
northwestern Arizona overnight into Saturday morning due to wildfire
smoke from the Nye County, NV. Otherwise, no operationally
significant cloud cover.
&&


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

$$


DISCUSSION...Planz
AVIATION...Soulat

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