451
FXUS65 KVEF 120723
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
1223 AM PDT Tue May 12 2026

.KEY MESSAGES...

* Well above normal temperatures will continue today before
  decreasing during the second half of the week, although
  temperatures will remain several degrees above normal.

* Breezy conditions are possible by the weekend as a trough moves
  into the northern Great Basin.

&&

.DISCUSSION...Today through next Tuesday.

Broad high pressure over the Southwestern US will maintain well
above normal temperatures across the region for one more day, with
afternoon high peaking 10 to 14 degrees above normal this afternoon.
Moderate HeatRisk (level 2 out of 4) is still expected across the
southern half of the forecast area this afternoon, including Las
Vegas, Kingman, Barstow, and Twentynine Palms. Areas of Major
HeatRisk (level 3 out of 4) are expected in the lower desert
valleys, including Death Valley, Laughlin, and Lake Havasu. The
ridge will begin to weaken slightly and shift eastward by Wednesday,
as a quick-moving shortwave moves from the Pacific Northwest into
the Great Basin. This system will increase afternoon winds and bring
a gradual cooling trend through the latter half of the week,
although temperatures will remain several degrees above normal.
Breezy afternoon conditions will also be possible over the weekend
as a second shortwave moves across the region. Winds are expected to
diminish during the evening and overnight hours.

&&


.AVIATION...For Harry Reid...For the 06Z Forecast Package... Gusty
south-southeast winds will pick up Tuesday afternoon with speeds
peaking around 25 kts and directional variability between 160 and
200. Gusts will decrease in speed and frequency after sunset. No
operationally significant cloud cover. Temperatures will exceed 100
degrees between 19 and 03Z.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...South-to-southeast winds
will pick up across the region Tuesday afternoon with gust speeds
between 20 and 30 kts. The exception will be KDAG where winds will
favor a more easterly component around 120 in the afternoon. Gust
speeds and frequencies will decrease after sunset. 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

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