751
FXUS65 KVEF 121158
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
458 AM PDT Thu Jun 12 2025

.SYNOPSIS...Temperatures will gradually increase through the
remainder of the work week into the weekend, peaking on Sunday.
Meanwhile, expect breezy-to-gusty southwesterly winds each afternoon
through the forecast period.

&&

.DISCUSSION...Today through Wednesday.

A building area of high pressure over the southeastern Pacific Ocean
will increase heights across the Desert Southwest, resulting in
increasing temperatures each day through the remainder of the work
week into the weekend. Temperatures will peak on Sunday at 8 to 12
degrees above seasonal normals, with a forecast temperature of 108
for Las Vegas. For now, "Major" HeatRisk is limited to the lowest
valleys on Saturday and Sunday, with widespread "Moderate" HeatRisk
through the weekend and start of next week. Will continue to assess
the need for a heat-related headline as we get closer.

Meanwhile, a closed area of low pressure will meander slowly
southward through the Gulf of Alaska. This, combined with the
aforementioned southeastern Pacific high will result in a dry
southwesterly flow aloft and moderately tight pressure gradients. As
such, you can expect breezy-to-gusty southwesterly winds each
afternoon through the forecast period.

Above-normal temperatures, breezy afternoon winds, and bone-dry
afternoon relative humidities will result in increased fire danger.
In general, fuels are not yet critical across our forecast area, but
if you`re recreating outside this week, be extra cognizant of
activities that involve sparks or flames.

Early next week, there is increasing certainty that a trough will
elongate off the California coast before pushing inland. This will
result in a slight drop in temperatures and a further increase in
winds.

&&

.AVIATION...For Harry Reid...For the 12Z Forecast Package...Gusty
south-southwesterly winds are the primary aviation concern this
forecast period. While gusts early this morning are expected to be
intermittent, expect more consistent gustiness after daybreak,
with gusts to around 25KT through early evening. Winds then remain
elevated overnight, becoming lighter toward daybreak Friday.
Otherwise, VFR conditions will prevail with high clouds that are
not expected to impact operations. Temperatures are expected to
exceed 100 degrees between 20Z-03Z, peaking at 103 degrees around
23Z.


For the rest of southern Nevada, northwest Arizona and southeast
California...For the 12Z Forecast Package...Across the region,
winds will once again become elevated and gusty out of the south
and southwest later this morning, continuing through early this
evening. Widespread gusts to around 25KT are expected, with the
strongest gusts closer to 30KT expected across the Western Mojave
Desert area late this afternoon through tonight. Elsewhere, gusts
will diminish after sunset. VFR conditions will prevail, with high
clouds with bases around 25kft.

&&

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

&&

$$

DISCUSSION...Soulat
AVIATION...Phillipson

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