Permanente, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

416
FXUS65 KVEF 270443
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
943 PM PDT Thu Jun 26 2025

.KEY MESSAGES...

* Temperatures will continue to gradually increase with warmer
  than normal temperatures returning as we head into the weekend
  and sticking around into early next week.

* Moisture will slowly return to the region next week, resulting
  in increasing thunderstorm chances for portions of the area.

&&

.DISCUSSION...through next Thursday.

Weather over the next few days will remain relatively benign as a
ridge of high pressure slowly nudges into the region. These slowly
increasing 500 mb heights will allow for our gradual warming trend
to continue through early next week. Warmer than normal temperatures
will return to southern Nevada, northwestern Arizona, and
southeastern California as we head into the weekend, resulting in
widespread Moderate (Level 2 of 4) HeatRisk. Moderate HeatRisk means
that this level of heat will impact heat sensitive individuals,
individuals that have not acclimated to the heat, and those without
access to effective cooling and/or adequate hydration. Temperatures
across the region will peak on Monday, with a few patches of Major
(Level 3 of 4) HeatRisk popping up in the Colorado River Valley,
Golden Valley, and the lower elevations of the Big Sandy Wash.

While the ridge of high pressure slowly pushes into the area, a
trough will develop off the coast of California over the weekend.
This set up will result in southerly flow across the region next
week, which will result in increasing moisture across Mohave County
that will then spill into southeastern California and southern
Nevada. Confidence regarding next week`s increase in moisture is
high, however the exact details regarding locations of individual
storms and precipitation amounts remain blurry due to interensemble
variability. Precipitation totals will be dependent on how much we
see moisture increase, which will be dependent on the orientation of
the trough relative to the ridge as it pushes into the area. With so
many moving parts, make sure to stay tuned to the forecast as it
continues to evolve.

&&

.AVIATION...For Harry Reid...For the 06Z Forecast
Package...Southwesterly winds less than 10 knots persist through
the night. Winds will become light and variable early Friday
morning before picking up and settling in from the south-southeast
through the afternoon, followed by a south-southwest direction in
the evening. A few gusts to around 15 knots cannot be ruled out.
Temperatures on Friday will top out around 103F with temperatures
exceeding 100F between 21Z and 03Z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Winds continue to
decrease and should follow their typical overnight directions,
except for the western Mojave Desert where elevated westerly winds
persist into the night. Breezy southerly winds will pick back up
again mid-to-late Friday morning, continuing through the afternoon
and decreasing around sunset. Once again, gusty westerly winds will
pick up in the western Mojave Desert including KDAG in the evening.
Skies will be mostly clear through the forecast period.

&&

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

&&

$$

DISCUSSION...Stessman
AVIATION...Meltzer

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