Chilcoot, California Weather Forecast Discussion

474
FXUS65 KREV 092023
AFDREV
Area Forecast Discussion
National Weather Service Reno NV
123 PM PDT Tue Sep 9 2025
.KEY MESSAGES...
* Breezy afternoon winds through midweek ahead of an arriving
  system, although smoke will linger in Mono, Mineral and S. Lyon
  counties.
* Cooler temperatures remain this week, a touch of warming over the
  weekend.
* Showers and thunderstorms today through Friday, best chances on
  Wednesday and Thursday.
&&
.DISCUSSION...
Smoke this morning lifted off the valley floors temporarily across
Mono, Mineral and S. Lyon counties, but has since begun to settle
back into the valleys this afternoon. We have continued the Dense
Smoke Advisory through Wednesday 11 AM, since the Garnet Fire is
continuing to burn. Keep checking with fire.airnow.gov for the
latest air quality conditions for your local area.
Ample cloud cover is streaming in from the west, associated with the
upper low that is bringing showers to northern California this
afternoon. As the low spins closer to western Nevada, shower
chances will increase this week. Today, the greatest chances will
be in and around the Tahoe Basin (25-30%) and the leeside valleys
(30-40%). Showers that form today are depicted by the CAMs to
linger as stratiform rain over western Nevada through early
Wednesday. Chances tick upward for Wednesday and Thursday, when
45-75% chances for showers and storms arrive to northeastern
California and northwestern Nevada. Friday, we will see the
chances sliding eastward as the low center of circulation lifts
into Idaho and Montana.
The departure of the low pressure will allow for warming on
Saturday, with dry air settling in under a small ridging pattern.
The ridge will be transient in nature, and by Sunday will already
be on it`s way out of here with another low pressure circulation
filling in behind. Shower chances then return on Sunday, and will
linger into Monday. Tuesday is depicted as a drier day for now,
but is on the end of the long range forecast. As such, this may
change, as blended guidance has varied solutions for Tuesday and
beyond. HRICH
&&
.AVIATION...
* VFR conditions for all terminals except KMMH, where smoke
  continues to impact visibilities. Afternoon gusts to 25 kts this
  afternoon may help to alleviate some smoke. The gusts will taper
  this evening, allowing smoke to filter into KMMH again tonight.
  For that reason, KMMH will experience LIFR/IFR conditions today
  and likely tomorrow as well. Slantwise visibilities will
  continue to be a concern for KMMH. HRICH
&&
.REV Watches/Warnings/Advisories...
NV...Dense Smoke Advisory until 11 AM PDT Wednesday NVZ001.
CA...Dense Smoke Advisory until 11 AM PDT Wednesday CAZ073.
&&
$$

NWS REV Office Area Forecast Discussion