textproduct: Reno
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
* Dry conditions with above average afternoon highs will persist through the upcoming week.
* A weak weather system will bring increased breezes for northeast CA, northwest NV and Sierra ridges late tonight through Sunday.
* High pressure then returns for much of next week with light winds and valley inversions prevailing.
DISCUSSION
A weak shortwave trough brushing across the Pacific NW states tonight and Sunday will bring an increase in winds across Sierra/northeast CA ridges with gusts to 45 mph. For lower elevations, afternoon breezes are most likely to show up in areas north of Susanville-Gerlach but with gusts only around 20 mph. Elsewhere, winds are expected to remain light through this weekend, with light winds prevailing regionwide from Monday onward as high pressure rebuilds over CA/NV. This will lead to daily inversion conditions for valleys especially for night/morning hours, with light haze and minor reductions in air quality for urban areas.
The overall quiet weather pattern continues for the upcoming week, with daytime highs mainly in the 50s to lower 60s and lows generally in the 20s to lower 30s, except for upper teens in typically colder Sierra and rural valleys. The presence of widespread cirrus tonight should keep temperatures up a few degrees, then mostly clear skies return from late Sunday through the majority of the upcoming week.
By the end of next week, the ridge shows some signs of weakening as a series of weather systems moves into the eastern Pacific. This could lead to a return of more active weather and precip chances for the 2nd week of February, although confidence is lower for this potential pattern change, given that similar scenarios were projected at times for mid-late January but eventually fizzled out. MJD
AVIATION
VFR conditions with light winds continue at the main terminals through the upcoming week. Widespread high level cloud cover should limit FZFG formation around KTRK tonight-Sunday, but patchy FZFG may develop late Sunday night/early AM Monday as this cloud cover decreases. An uptick in SW ridge top gusts from Tahoe northward late tonight thru Sunday morning could produce periods of mountain wave turbulence east of the Sierra crest into far western NV. MJD
REV Watches/Warnings/Advisories
NV...None. CA...None.
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