Permanente, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

191
FXUS65 KVEF 042154
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
255 PM PDT Mon Aug 4 2025

.KEY MESSAGES...

* Smoke from the Gifford Fire in California to impact the area at
  times over the next couple of days

* Above-normal temperatures, afternoon southwesterly breezes, and
  dry conditions continue through the forecast period.

* Extreme Heat Watch in effect for southern zones Wednesday and
  Thursday.

&&


.DISCUSSION...Today through Monday.

Smoke from the Gifford Fire was quite noticeable this morning,
particularly in the Las Vegas Valley where visibility was reduced to
between 1 and 3 miles in many locations. The smoke has shifted
further east and has greatly diminished. Another round of smoke is
likely to work its way into San Bernardino, southeast Inyo, Nye and
western Clark County overnight.

Continued dry southwesterly flow will persist over our forecast area
into the weekend as multiple troughs continue to keep the monsoonal
flow at bay. Expect sunny skies and breezy south-southwesterly winds
each afternoon. Temperatures will remain above normal through the
period with Wednesday and Thursday seeing the highest temperatures.

Many locations will reach Moderate (Level 2 of 4) HeatRisk on
Wednesday and Thursday, with Major (Level 3 of 4) HeatRisk spread
across southern Mohave, southern San Bernardino County, and the
Colorado River Valley. As a result, there remains an Extreme Heat
Watch for these areas on Wednesday and Thursday.
&&


.AVIATION...For Harry Reid...For the 00Z Forecast
Package...South-southeasterly gusts will continue at 20-25 kts, with
gusts decreasing in speed and frequency after sunset. South-
southwesterly winds will re-develop on Tuesday morning at similar
speeds, gusts 20-25 kts. Slantwise visibility restrictions in the
Daggett corridor from smoke may return at time over the next couple
of days with possible surface visibility restrictions. Temperatures
will remain above 100 degrees through 03Z. Another round of smoke is
possible overnight into Tuesday morning, but at this point is most
likely west of the terminal.

For the rest of southern Nevada, northwestern Arizona and
southeastern California...For the 00Z Forecast Package...South to
southwesterly gusts will be common into the early evening with gusts
of 20-30 kts with the exception of KBIH where winds will be lighter
and more diurnally driven. Gusts will decrease in speed and
frequency after sunset. Slantwise visibility restrictions expected
in the Daggett corridor from smoke from the Gifford Fire in
southeastern California. Smoke/haze may reduce surface visibility at
KDAG overnight and into Tuesday. Impacts from the smoke cannot be
ruled out at other terminals but is less likely.
&&


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

&&

$$

DISCUSSION...Czyzyk/Soulat
AVIATION...Czyzyk

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter