Barstow, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

941
FXUS65 KVEF 241113
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
412 AM PDT Tue Jun 24 2025

.KEY MESSAGES...

* Other than a low chance for showers on the Sierra crest this
  afternoon, dry conditions are likely through the week.

* Haze is possible today and Tuesday as south winds push elevated
  smoke in from fires in Baja California.

* Below-normal temperatures are expected through Wednesday before
  rising to near normal and then above normal later in the week.
&&

.DISCUSSION...through Monday. Midnight satellite loop showed low
pressure centered over south central California moving slowly east.
On the front side of this low, a jet streak was pushing northward
from southern California into east central Nevada. This was helping
to drive elevated convection over Nye and Lincoln counties. No
lightning had been detected, but two wind gusts of 60 and 77 mph had
been recorded on the NNSS, presumably from "virga bombs" evaporating
in the dry subcloud air. By sunrise, the jet streak should no longer
be in a favorable position to generate lift over our CWA, and the
low will slowly fill and drift east through the day. Afternoon
convection, if any, should be limited to the Sierra Nevada where
orographic lift will be maximized. The other feature of interest
will be smoke and haze from distant wildfires. Wednesday through
Sunday should be relatively quiet over our area, with breezy
afternoons and a warming trend pushing temperatures above normal as
heights rise overhead. At this time, there are only tiny splotches
of Major HeatRisk expected on Sunday. This very low coverage is
probably more due to the time of year, as we are getting within a
few degrees of the climatologically hottest time of the year, so it
is more difficult to have unseasonably hot conditions. That said,
even temperatures a few degrees above average can be dangerous for
those with poor heat tolerance or without access to air
conditioning. Monday is more uncertain, as there is good model
agreement on the existence of low pressure nearing the California
coast, but not such good agreement on whether this low will be able
to tap into moist monsoon flow which should be established over New
Mexico and perhaps Arizona.
&&

.AVIATION...For Harry Reid...For the 12Z Forecast Package...
Southerly breezes to continue through most of the TAF period, though
a period of light and variable/easterly winds is expected later this
morning. By the afternoon, south-southeasterly breezes should take
hold with gusts around 15 knots. These will continue until sunset
when winds decrease and shift to a more south-southwesterly
direction. Few to scatter clouds at or above 12kft later today.

For the rest of southern Nevada, northwestern Arizona and
southeastern California...For the 12Z Forecast Package...A few
lingering showers/virga persist across portions of Lincoln and Nye
counties this morning. Gusty, erratic winds will be possible near
this activity, but the threat will diminish over the next 3-4 hours.
Otherwise, winds across the region should largely follow typical,
daily patterns. Strongest breezes expected at KDAG where gusts of 20-
25 knots are forecast this evening, but elsewhere wind speeds will
be ~10 knots or less with gusts around 15-20 knots. VFR conditions
prevail with few to scattered clouds at or above 10kft.
&&

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

$$

DISCUSSION...Morgan
AVIATION...Woods

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