481
FXUS65 KVEF 200454
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
954 PM PDT Sat Apr 19 2025

.SYNOPSIS...Temperatures gradually rise over the next few days
with a return of above average temperatures by Sunday. A system
bringing a decrease in temperatures and increase in wind should
arrive towards the end of next week.
&&


.UPDATE...Today was the last below-normal temperature day for the
remainder of the forecast period as a ridge of high pressure builds
in the southeastern Pacific and brings a zonal flow to the Desert
Southwest. No changes made to the forecast this evening, as it
remains in good shape.
&&

.PREVIOUS DISCUSSION... 345 PM PDT Sat Apr 19 2025/


.DISCUSSION...Through next Saturday

The main point of interest over the next few days is warming
temperatures. A ridge is building in the eastern Pacific Ocean and
500 mb heights will gradually rise over the western United States.
High temperatures will return to above normal values by Sunday,
which for Las Vegas means highs in the mid 80s. High clouds drift
through the area on Sunday and Monday as a weak shortwave moves
through the Great Basin. Temperatures peak on Tuesday with highs 5
to 10 degrees above average. Las Vegas has a 50 percent probability
of reaching 90 degrees on Tuesday. Afterwards, flow aloft shifts to
a zonal pattern on Wednesday and Thursday. A series of shortwaves
will move east along this pattern, bringing breezy winds out of the
south to southwest and periods of cloudy skies each day.
Temperatures may also decrease a few degrees due to cloud cover and
slightly lower heights aloft. Forecast confidence decreases towards
the end of the week as a low pressure system moves into the western
United States. It should bring decreasing temperatures and an
increase in winds to the forecast area next weekend and early next
week. Timing and intensity of these changes will become more
apparent with upcoming forecast packages.
&&


.AVIATION...For Harry Reid...For the 06Z Forecast Package...Light
winds following typical, daily patterns expected through mid-
afternoon Sunday. Chances for speeds exceeding 10 knots less than
20% during this time. By late afternoon or early evening, winds
shift to the south-southwest with 10+ knots likely (70% chance).
South-southwest winds continue through the evening and overnight.
Clear skies until high clouds move in Sunday afternoon and evening.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Light and diurnal winds
patterns anticipated across much of the area tonight and Sunday.
Peak winds 8-15 knots, with strongest breezes expected at DAG as the
westerly push arrives. Clear skies until high clouds move in Sunday
afternoon and evening. A few clouds between 8-10kft possible on the
high terrain around BIH during the afternoon and evening.
&&


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


$$

UPDATE...Soulat
DISCUSSION...Meltzer
AVIATION...Woods

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