009
FXUS65 KVEF 090208
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
707 PM PDT Tue Apr 8 2025

.SYNOPSIS...The ongoing warming trend will continue this week,
providing an early taste of summer as temperatures climb to around
10 to 15 degrees above normal each day. Relief will arrive in
time for the weekend as a passing system impacts the region, with
increasing winds Friday and Saturday, as well as gradually cooling
temperatures this weekend into early next week. No precipitation
is forecast the next seven days.

&&

.UPDATE...Current temperatures are around 5 degrees warmer than they
were at this time yesterday. Afternoon highs were around 10 degrees
above average for this time of year. Overnight lows will fall into
the 60s in the Las Vegas Valley and Colorado River Valley and into
the 50s in higher elevations of the Mojave Desert. Winds stay light
and skies remain mostly clear. No forecast updates are necessary at
this time.

&&

.SHORT TERM...through Wednesday night

The warming trend continues today, with temperatures this
afternoon on track to top out around 10 degrees above normal for
most, with locations across the mountains inching into the 70s,
while locations across the Colorado River Valley and Death Valley
climb well into the 90s. Winds remain relatively light, with
intermittent breezes expected through the afternoon. Latest water
vapor imagery and RUC 500 hPa analyses clearly indicate the low-
amplitude ridge encompassing the western CONUS, with moisture
aloft lending to waves of high clouds over the region. These
clouds will gradually dissipate and move northward overnight
tonight and Wednesday, with ensembles still in great agreement
regarding the evolution of the ridge, progged to continue building
over the region through Wednesday night. The net result will be a
continued increase in thicknesses and clearing skies as the
building ridge shunts Pacific moisture northward, along with a
corresponding uptick in temperatures. Highs Wednesday are expected
to top out a few degrees warmer than today across the board,
including the return of triple digits in Death Valley. Overnight
temperatures will also trend upward accordingly, though with lows
in the 40s and 50s across higher terrain and 60s and 70s across
the valleys, there will still be some semblance of relief from the
heat. As to be expected, no precipitation is forecast, with winds
remaining light for the duration.

.LONG TERM...Thursday through Monday

Temperatures continue to climb on Thursday and Friday as the ridge
builds. Highs will be 10 to 15 degrees above normal on Thursday
and 15 to 20 degrees above normal on Friday. Record daily high
temperatures and record warm low temperatures are threatened at
some area climate sites - see the Climate section below for
details. These temperatures will yield widespread Minor (Level 1
of 4) HeatRisk with pockets of Moderate (Level 2 of 4) HeatRisk
along the Colorado River, Death Valley, and other areas of lower
elevation in the Mojave Desert. This level of heat primarily
affects those that are sensitive to heat, have not had time to
acclimate to increased temperatures, or do not have access to
sufficient cooling or hydration. Remember to stay hydrated and
know where to find the nearest air conditioned space, especially
if spending time outdoors.

A significant change in the weather pattern arrives this weekend
as an upper level trough moves into the western United States
and the ridge exits to the east. Model ensembles are starting to
agree on the timing and placement of the trough and spread in NBM
output for winds and temperatures is decreasing. Overall, expect
increased southwesterly winds on Saturday and Sunday as well as
cooler temperatures going into early next week. How strong the
winds become and how much temperatures drop will depend on the
speed and depth of the trough, which should become more apparent
in the coming days.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...
Winds will largely remain rather light this evening and overnight. A
bit of a south/southwest wind push may result in a few gusts to 15
knots through around 03z, but otherwise expect winds 10 knots or less.
Wind direction will mainly be from the south/southwest, becoming
variable by 12z then shifting to the north/northeast by 17z-18z
Wednesday.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Winds to remain
diurnally driven and 10 knots or less. The exceptions will be KDAG
and KEED/KIFP, where a few gusts of 15-20 knots may occur before 05z
Wednesday.

&&

.CLIMATE...Numerous climate locations have a forecast high
temperature and/or forecast warm low temperature within 3 degrees of
the daily record.

The table below shows the daily record maximum temperature and the
year the record was last set. An asterisk (*) denotes which records
are in jeopardy (within 3 degrees of the forecast).

MAX            THU, APR 10    FRI, APR 11
               Record (Yr)    Record (Yr)

Las Vegas      91 (2014)*     93 (2023)*
Bishop         91 (1989)      86 (2018)*
Needles        103 (1989)     102 (1936)*
Daggett        99 (1989)      93 (2014)*
Kingman        91 (1907)*     96 (1936)
Desert Rock    91 (1989)*     87 (2014)*
Death Valley   110 (1989)     108 (1989)

The table below shows the daily record warm minimum temperature and
the year the record was last set. An asterisk (*) denotes which
records are in jeopardy (within 3 degrees of the forecast).

WARM MIN       THU, APR 10    FRI, APR 11
               Record (Yr)    Record (Yr)

Las Vegas      70 (2002)*     72 (2018)
Bishop         48 (1951)      55 (1989)
Needles        70 (1989)      72 (2014)
Daggett        63 (1989)*     68 (1989)
Kingman        59 (1989)      66 (1989)
Desert Rock    63 (1989)      66 (2018)
Death Valley   80 (1972)      80 (2018)

&&

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

&&

$$

UPDATE...Meltzer
SHORT TERM...Phillipson
LONG TERM...Meltzer
AVIATION...Austin

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