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
* High pressure this week will provide dry conditions, light winds, and a warming trend through Thanksgiving Day.
* Valley inversions will strengthen, leading to potential reductions in air quality for lower valleys this week.
* Increasing likelihood for a cooler and breezier pattern next weekend with a 20-30% chance for precipitation.
DISCUSSION
Freezing fog will be possible again this morning through the Martis Valley and Truckee area along with a 20-30% chance of patchy fog in more rural W.Nevada areas near Lovelock and Fallon. Fog may be less widespread than yesterday due to increased winds aloft promoting better mixing in some areas.
The weather through the upcoming holiday week will remain relatively quiet as a dirty ridge of high pressure builds over the region. This setup will provide dry conditions, periods of high clouds, light winds, gradually warming temperatures, and strengthening valley inversions.
By Thanksgiving, high pressure will continue to strengthen, reinforcing valley inversions and potentially reducing air quality in lower valleys as wind and mixing remain minimal. Temperatures will climb steadily, with daytime highs reaching near 10 degrees above season averages, with highs in the lower 60s across W.Nevada and mid-upper 50s for Sierra valleys by Thursday.
By this weekend, forecast confidence decreases as a blocking pattern develops over the E.Pacfic. This setup could allow colder shortwave troughs to drop in from the northwest and deepen across the western U.S. While ensemble guidance varies considerably on timing, confidence is growing in a cooler, breezier pattern with at least some potential (20-30% chances) for precipitation next week. Fuentes
AVIATION
Generally VFR conditions are expected, except for areas of FZFG at KTRK through 18z. 20-30% chance for patchy FZFG area possible for KMEV, KNFL, and KLOL this morning. Areas of light to moderate turbulence will be possible today east of the Sierra crest as wind gusts aloft (FL100), reach between 30-40 kt. Fuentes
REV Watches/Warnings/Advisories
NV...None. CA...None.
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