Area Forecast Discussion
Issued by NWS Reno, NV

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FXUS65 KREV 142124

Area Forecast Discussion
National Weather Service Reno NV
224 PM PDT Mon Oct 14 2019


Dry conditions with warm temperatures are expected through midweek.
Light winds today and Tuesday will be followed by increased winds
Wednesday and a cooling trend Thursday into next weekend as waves of
low pressure move across the Pacific Northwest. There is a chance
for light showers north of I-80 Wednesday night and Thursday, and
also for Saturday. Conditions improve by the start of next week
with a warming trend.



A bit hazy out there for the Truckee Meadows region this afternoon
taking a look out the office window. Areas in the Tahoe Basin are
also experiencing similar conditions with thicker haze just south of
the lake. This is due to the ongoing Caples Fire roughly 25-30 miles
south-southwest of South Lake Tahoe. Expect the haze and/or smoke to
stick around through the evening hours and possibly into Tuesday
depending on overall fire activity. The good news is that southwest
winds and ventilation/mixing do increase by Wednesday afternoon
ahead of our next shortwave trough set to make impacts for the end
of the week.

In the meantime... tranquil weather conditions remain for the rest
of today and Tuesday while under high pressure. High and low
temperatures are forecast to be around normal with Tuesday being the
warmest of the week as highs peak in the low to mid 70s for western
Nevada and the Sierra. No significant freezes overnight are
anticipated at this time region wide.

As Wednesday rolls around, cloud cover and southwest winds increase
in response to a shortwave trough approaching the northwest coast.
The strongest winds are expected to be mainly along the Sierra
ridgeline, northeast CA, and for areas north of I-80 with gusts 25-
30 mph possible (of course a bit stronger along the crest). Fire
concerns are low at this time with model guidance suggesting
relatively moist conditions in the low to mid levels of the
atmosphere. As the trough moves inland and into northeast CA by
Wednesday night, moisture and instability increase with the frontal
passage generating some light rain showers for Plumas/Lassen
counties and northern Washoe County. Showers taper off by Thursday
morning with the trough exiting towards the east.

Chilly temps and breezy northwest winds will be leftover for
Thursday and Friday with high temperatures roughly 10-12 degrees
cooler compared to Tuesday`s and Wednesday`s. According to ensemble
guidance, these conditions look to stick around through the
weekend as the pattern remains active with a second trough passage
bringing chances for some light precipitation to areas north of
the Susanville-Gerlach-Winnemucca line on Saturday. Northwest
winds are also looking a tad stronger for Saturday afternoon with
gusts in the 25-35 mph range area wide (40-45 mph for wind prone
areas). Fire concerns are once again on the low side due to higher
anticipated RH values, but nonetheless we will continue to

A warming trend and drier weather is looking likely to begin next
week as a ridge builds in from the west. -LaGuardia



VFR with light winds today and tomorrow for most locations. The one
exception is around South Lake Tahoe and the central Sierra where
smoke from the Caples Fire is creating some low level haze and
potentially limiting slantwise visibility.

A trough brushing by the area on Wednesday will bring a slight
chance of showers from I-80 north into NE California, but QPF will
be light. Breezy winds with gusts up to 25-30 mph can also be
expected on Wednesday, mainly north of US 50. -Zach


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