Area Forecast Discussion
Issued by NWS Reno, NV

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FXUS65 KREV 222048

Area Forecast Discussion
National Weather Service Reno NV
148 PM PDT Sun Oct 22 2017


High pressure continues to build across the region. Much warmer
conditions are expected for the rest of this week as temperatures
increase well above seasonal averages.



A ridge of high pressure is firmly in place over the region and
will intensify over the next few days. This will bring anomalously
warm conditions for the end of October with western Nevada high
temperatures around 80 degrees by Tuesday and Wednesday.

Otherwise, winds will be generally light out of the east. However,
some slightly breezy conditions can be expected over the Carson
Range, the west shore of Lake Tahoe, and Sierra Ridges over each
night through Wednesday morning.

Later this week, models are becoming increasingly split on the
position of major features. ECMWF tracks low pressure through
Idaho and favors a weak slider-type scenario for northern Nevada
while GFS maintains a more eastward track through the Rockies. No
changes were made to the currently dry forecast, but forecaster
confidence is taking a dip with these differing solutions. The
most likely scenario is that we remain dry, but westerly shifts in
the track of low pressure for Thursday could bring light precip to
the region...stay tuned. Bottom line: temperatures will be
cooling late this week as winds shift more northerly. Boyd



VFR conditions area wide outside of KTRK where freezing fog
will persist through 0900 local. Light easterly winds are
expected through Tuesday afternoon. Winds over the crest could
reach near 40 kts for a time Monday evening as the surface
gradient strengthens. Easterly winds will also bring drier air to
the region and lower the chances for fog at KTRK, but it will
continue to remain possible each morning. -Zach


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