Darwin, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

302
FXUS65 KVEF 192151
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
251 PM PDT Fri Jun 19 2026

.KEY MESSAGES...

* Dry conditions and breezy southwesterly winds will bring elevated
  fire danger to southern Nevada and northwestern Arizona into
  this evening.

* Temperatures will bottom-out near-normal on Saturday before
  increasing through the work week to around 10 degrees above-
  normal.

* Monsoonal moisture may make a return the middle to end of next
  week.

&&

.DISCUSSION...Today through Friday.

A weak trough will push through the region today with little impacts
other than gusty south to southwest winds and some slight cooling
today through Sunday. Wind gusts will generally range from about 25
to 35 mph with occasional gusts to 40 mph in southwest-northeast
oriented valleys and across portions of the western Mojave Desert.
This, combined with dry conditions and dry vegetation has resulted
in increased fire danger across southern Nevada and northwestern
Arizona today. Recreation with sparks or flames including safe-and-
sane fireworks is highly discouraged. See the FIRE WEATHER
discussion below for more details. As this trough pushes east on
Saturday, we will see decreasing surface pressure gradients leading
to lower wind speeds, although wind gusts between 20 and 30 mph will
once again occur leading to elevated fire weather conditions.

As we go into next week, high pressure will build over northern
Mexico and gradually expand northward during the first half of the
week. This will lead to temperatures climbing to well above normal
with readings generally 10 to 15 degrees above normal by mid-week.
We will start to see widespread Moderate Heat Risk (Level 2 out of
4) and pockets of Major Heat Risk (Level 3 out of 4) in the lower
desert valleys such as Death Valley, the Las Vegas Valley, the Moapa
Valley, and the Colorado River Valley. This level of heat will
impact anyone who is outdoors without proper hydration and frequent
breaks in the shade and/or air conditioning. Otherwise, expect
breezy southwest winds each afternoon and mostly sunny skies.

Something else to watch will be the return of monsoonal moisture the
middle to end of next week as the high over northern Mexico start to
push northward. PWs are forecast to increase to around 0.75" - 1.00"
on Tuesday, generally south of I-15, but by Wednesday and Thursday
the 0.75" line is forecast to expand as far north as southern
Lincoln and central Nye counties. Overall, instability is rather
limited Tuesday and Wednesday, but will increase Thursday leading to
a better chance of seeing isolated showers and thunderstorms.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...South
winds gusting over 20KT will continue through the early evening.
After 03Z, southwest winds set up as gusts drop to 15-20KT for the
rest of the evening. By 08Z, gusts should end as chances for gusts
over 15KT drop to 20% or less. South winds at 8KT-10KT are expected
the rest of the night through Saturday morning. Gusty south winds
return after 18Z Saturday with slightly lighter gust to around 20KT
expected in the afternoon. Winds will again diminish Saturday
evening with gusts ending around 03Z. VFR skies with FEW afternoon
clouds at or above 15kft, otherwise clear skies. Smoke from nearby
wildfires should not drift over the terminals through the period,
remaining to the north and east. Temperatures will exceed 100
degrees through 02Z today, then again after 22Z -01Z on Saturday.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Breezy south to
southwest winds are expected across the region the rest of afternoon
with widespread gusts 20-30KT expected. West gusts over 30KT are
possible after 00Z around KDAG. Winds will slowly diminish after
sunset with gusts ending for most locations by 09Z. Typical light
wind patterns Saturday morning will give way to more breezy south
winds developing around 18Z Saturday. Gusts on Saturday will be
lighter than today as gusts 15-25KT are expected. VFR conditions
persist through the period. Smoke from wildfires will advect
northeast through the Southern Great Basin into Utah this evening
then dissipate as winds diminish tonight. Similar smoke conditions
to today are expected on Saturday.

&&

.FIRE WEATHER...Gusty southwest winds, relative humidities less than
15 percent, and extremely dry fuels will lead to critical fire
weather conditions across much of southern Nevada and northwest
Arizona into this evening. Currently, there are Red Flag Warnings
posted for southern Nevada through 8pm this evening and until 11pm
for northwest Arizona before conditions start to improve with
diminishing winds and rising humidity. On Saturday, winds are
expected to decrease with afternoon gusts between 20 to 30 mph along
with relative humidities dropping below 15 percent. We will once
again see near critical fire weather conditions, but at this time
Red Flag conditions are not expected.

&&


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

$$

DISCUSSION/FIRE WEATHER...Gorelow
AVIATION...Nickerson

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