Laughlin, Nevada Weather Forecast Discussion

021
FXUS65 KVEF 240310
AFDVEF
Area Forecast Discussion
National Weather Service Las Vegas NV
810 PM PDT Tue Sep 23 2025
.KEY MESSAGES...
* Low impact weather with dry conditions and near normal
  temperatures prevail through Wednesday.
* Precipitation chances increase late this week as anomalous
  moisture interacts with an upper level disturbance, however
  details and weather impacts remain low confidence at this time.
&&
.DISCUSSION...Through Monday.
Ridging builds over the region today and tomorrow while upper level
low pressure remains off the California coast. This setup brings
mostly clear skies and near average temperatures for late September.
A few light showers may develop over the Sierra on Wednesday
afternoon and evening as the low starts to move east. Breezy
northerly winds develop today and tomorrow in the afternoon, but no
impacts are expected.
A major change in the weather pattern is on track for the latter
half of this week and early next week as the upper level low moves
east into California and Nevada. Models are consistently showing an
increase in precipitable water starting Wednesday night, reaching
150 to 200 percent of normal. However, since it is late September
and past the peak of monsoon season, this translates to PWATs in the
0.5 to 1.0 inch range for most locations. There is still great
discrepancy between models as to how much precipitation will
actually reach the surface. The NBM 25th percentile QPF shows little
to no precipitation through the event, while the 75th percentile
shows enough precipitation for isolated minor impacts. Precipitation
totals and impacts will largely depend on the strength, track, and
speed of the low as it moves east, and the availability of moisture
going into the weekend, including the ability to tap into additional
tropical moisture. Heavy rainfall is one of the primary threats
given anomalously high moisture areawide. The WPC included most of
the forecast area north of Interstate 40 in a Marginal Excessive
Rainfall Outlook on Thursday, along with northwestern Arizona and
far southern Nevada on Friday, and the entire forecast area south of
the Great Basin on Saturday.
&&
.AVIATION...For Harry Reid...For the 06Z Forecast Package...Mainly
light winds are expected overnight, less than 6 knots, but are
expected to favor a west to northwest direction after 08z and
continuing through 15z. Winds will then shift to a northeast
direction late morning and afternoon. Tomorrow`s winds should
generally be lighter, but there is a 50 percent probability of
sustained winds over 10 knots between 16Z and 20Z. Skies should be
mostly clear aside from FEW mid level clouds tomorrow afternoon.
For the rest of southern Nevada, northwest Arizona and southeast
California...For the 06Z Forecast Package...Winds across the region
will fall below 10 knots with the exception of KIFP where speeds
over 10 knots continue overnight. Gusty east to southeast winds in
the Owens Valley between 10-18 knots will diminish after 08z and
gradually become light and variable overnight. Additional gusty
winds pick up at KBIH, DAG, and KIFP tomorrow morning and afternoon.
Mostly clear skies are expected through the forecast period aside
from FEW mid level clouds tomorrow.
&&
.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&
$$
DISCUSSION...Meltzer
AVIATION...Gorelow
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NWS VEF Office Area Forecast Discussion