369
FXUS65 KVEF 281103
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
402 AM PDT Sat Jun 28 2025

.KEY MESSAGES...

* Temperatures will continue to gradually increase each day through
  Monday. Low confidence in temperatures after Monday.

* Moisture will slowly push into the region next week, resulting in
  increased chances for isolated afternoon showers and
  thunderstorms, mainly in Mohave County.

&&

.DISCUSSION...through next Friday.

Temperatures will continue to trend slightly warmer each day as
high pressure builds across the region. Afternoon highs today will
top out a degree or two above normal, with temperatures trending
increasingly warm through early next week when they are expected
to peak. While temperatures will be above normal, heat risk remain
predominantly in the moderate category, with some patchy major
heat risk Monday and Tuesday mainly across Mohave County. Brief
duration of the heat episode and somewhat borderline temperatures
remain a limiting factor for an Extreme Heat headline, though we
will continue to monitor trends closely. By Tuesday onward,
temperatures will begin to trend cooler thanks to a weak trough
moving shore and an influx of monsoonal moisture into Northwest
Arizona.

Speaking of moisture, the Four Corners high will begin to orient
itself more favorably for monsoonal moisture to be wrapped into
the flow early next week, which will also be complimented by an
approaching low over Southern California that will further
enhance the southerly flow. Most of the moisture at this point
looks to favor mainly northwest Arizona, though some of the
eastern Mohave Desert could see some isolated activity as well.

&&

.AVIATION...For Harry Reid...For the 12Z Forecast Package...Light
southerly breezes continue through sunrise, becoming variable or
easterly by mid-morning. During the afternoon, expecting winds to
turn southeasterly and eventually south-southwesterly. A few brief
periods of 10+ knots likely while winds are easterly/southeasterly,
but should largely remain below this threshold. Best odds of seeing
10+ knots will be with the south-southwest winds, though the timing
of this shift is a little uncertain (19z - 01z). Clear skies prevail
though haze from wildfire smoke may push in from the south this
afternoon and evening. Temperatures to exceed 100F between 20z and
04z, peaking around 105F.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 12Z Forecast Package...Winds to largely follow
typical, daily patterns across the region. Speeds this afternoon 8-
15 knots, with gusts 15-25 knots. Strongest gusts expected around
KBIH and KDAG. Winds begin to subside after sunset, taking longer to
weaken at the aforementioned sites. Mostly clear skies with just a
few shallow cumulus over the Sierra crest. Haze from wildfire smoke
expected to push up from the south, primarily impacting areas along
and south of the I-15 corridor.

&&

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

&&

$$

DISCUSSION...Outler
AVIATION...Woods

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