Area Forecast Discussion
Issued by NWS Reno, NV

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FXUS65 KREV 082258

Area Forecast Discussion
National Weather Service Reno NV
258 PM PST Fri Dec 8 2017


High pressure continues to dominate bringing dry conditions along
with valley inversions, cold nights and light winds for the next
several days. Localized air quality issues are possible along the
Sierra Front due to the strong inversions.



Quiet weather days will persist for this weekend into the
start of next week as an amplified ridge of high pressure sits
right over the Sierra and western NV. Overnight lows will continue
to be cold dipping into the mid teens and lower 20s. The coldest
valleys could continue to see lows dropping into the single
digits! Inversions will keep valleys chilly throughout the day
with highs creeping into the upper 40s and low 50s. The warmer,
stable air aloft will also inhibit mixing causing hazy skies and
decreased air quality, especially for urbanized areas. Relatively
warmer temperatures with less diurnal fluctuations can be
expected along the mid and upper slopes of the Sierra due to the

As for winds, light easterly flow will continue for the next few
days due to the low level pressure gradient. -LaGuardia

Not much change for the long term forecast with the ridge
remaining nearby and a general persistence forecast. Winds will
remain light, although they may briefly increase from the
northeast Tuesday night into Wednesday as a weak short wave drops
through the Great Basin.

Further out, it appears the ridge will retrograde some. This
retrogression would result in better air quality with colder air
aloft and backdoor cold fronts. Beyond that, the ridge will weaken
more, with weak systems possible, but there is nothing
significant on the horizon at this time.


VFR with light winds into next week. Some haze along the Sierra
Front for KRNO and KCXP, but no significant impacts are expected
from it at this time.


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