FXUS65 KVEF 091639
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
940 AM PDT Thu Jul 9 2026

.KEY MESSAGES...

* Dry conditions and above-normal temperatures will continue 
  through the end of the week.

* Monsoonal moisture begins increasing this weekend, resulting in
  increased chances for showers and thunderstorms early next week.

&&


.DISCUSSION...Today through Wednesday.

High pressure will be the driving feature of regional weather over 
the next seven days. The center of the high remains parked over 
southern California and Arizona, keeping temperatures several 
degrees above-normal. Las Vegas has a 70 to 80 percent chance of 
reaching 110 degrees today and Saturday, which would be the first 
110-degree day since August 21st, 2025. Hot daytime temperatures 
combined with warm overnight low temperatures will result in 
widespread Moderate (Level 2 of 4) with pockets of Major (Level 3 
of 4) Heat Risk for most locations. A combination of dry and 
breezy conditions also prompt elevated fire weather conditions 
across much of the region today and tomorrow. 

The high becomes centered over the Four Corners this weekend, a 
classic setup for monsoonal moisture advection into the southwestern 
United States. PWATs in excess of 1 inch spread into areas south
and east of Interstate 15 on Sunday, spreading north into the 
rest of southern Nevada and southeastern California by Monday. 
Gusty outflow winds and dry lightning appear to be the primary 
threats for at least the first few days as forecast soundings 
display inverted-V patterns with moisture aloft and drier air near
the surface. Orographic lift will favor storm formation over high
terrain. The high stays put through midweek and ensembles show 
persistent healthy moisture advection. Lower heights aloft, cloud 
cover, and atmospheric moisture will help reduce temperatures by a
few degrees. 
&&


.AVIATION...For Harry Reid...For the 18Z Forecast Package...
Winds will gradually become southeast to south for a few hours this 
morning with speeds generally around 8-10 knots. An occasional gust 
to around 15 knots will be possible at times. After 20Z, expect a 
more solid southwest wind which will likely last through much of the 
overnight period. Speeds 10-15 knots will gusts to around 25 knots 
are expected. Temperatures will exceed 100 degrees between 17Z and 
04Z with a high of 110.

For the rest of southern Nevada, northwest Arizona and southeast 
California...For the 18Z Forecast Package...Expect gusty southwest 
winds between 20 and 25 kts at Las Vegas Valley and Colorado River 
Valley TAF sites that peak this afternoon, but linger well into the 
evening. 60 percent chance of gusts over 20 kts persisting after 03Z 
until 08 to 12Z. KBIH will stay generally below 10 kts and will 
favor the north, with a brief shift from the south-southeast before 
veering west-northwest then northwest for the evening. KDAG will 
gust from the west through the day with gusts peaking around 30 kts. 
&&


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

&&

$$

DISCUSSION...Meltzer
AVIATION...Gorelow/Soulat

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