311
FXUS65 KREV 151932
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1132 AM PST THU JAN 15 2026
KEY MESSAGES
* LIGHT WINDS AND VALLEY INVERSIONS WILL KEEP HAZY SKIES AND AIR
QUALITY REDUCTIONS INTO THIS WEEKEND, WITH PATCHY FREEZING FOG
IN SOME SIERRA VALLEYS.
* BREEZY TO GUSTY EAST WINDS CONTINUE FOR SIERRA RIDGES THROUGH
FRIDAY MORNING.
* DRY WEATHER PREVAILS THROUGH THE UPCOMING WEEK WITH ABOVE
AVERAGE DAYTIME TEMPERATURES AND TYPICAL CHILLY NIGHTS, ALTHOUGH
INVERSIONS MAY WEAKEN NEXT WEEK.
DISCUSSION
THIS QUIESCENT WEATHER PATTERN WILL CONTINUE THROUGH AT LEAST
EARLY NEXT WEEK ACROSS MUCH OF THE AREA AS UPPER LEVEL RIDGING
BUILDS FURTHER OVER THE PACNW. AS PER USUAL, WE CAN EXPECT LIGHT
WINDS, VALLEY INVERSIONS, HAZY SKIES, LOCALIZED AIR QUALITY
REDUCTIONS, AND WARMING TEMPERATURES. SUNDAY LOOKS TO BE THE
WARMEST DAY OF THE WEEK WITH AFTERNOON HIGHS 10-15 DEGREES ABOVE
NORMAL; THIS MEANS MANY LOCATIONS WILL BE FLIRTING WITH THE UPPER
50S, POSSIBLY NEAR 60 IN SOME AREAS. EASTERLY WINDS MAY ALSO GUST
UP TO 45 MPH ALONG RIDGES THROUGH FRIDAY.
THE MAIN EXCEPTION TO THIS FORECAST WILL BE SEEN IN LOCALIZED
SIERRA VALLEYS, NAMELY AROUND MONO LAKE AND THE MARTIS VALLEY.
LATEST SATELLITE IMAGERY SHOWS A PERSISTENT LAYER OF CLOUDS OVER
MONO LAKE AND WHEN LOOKING AT ROAD CAMERAS, YOU CAN SEE A THICK
BLANKET OF FREEZING FOG. THIS IS EXPECTED TO CONTINUE THROUGH AT
LEAST THE REMAINDER OF THE WEEK DUE TO STRONG INVERSIONS. AFTERNOON
HIGHS MAY REACH ABOVE FREEZING, BUT EXPECT COLD TEMPERATURES IN
THE AREA EACH DAY. THIS FOG MAY ALSO PRODUCE SLICK ROAD CONDITIONS,
WITH REPORTS OF DEPOSITING SNOW IN THE AREA AS WELL. AS FOR THE
MARTIS VALLEY, FREEZING FOG WILL BE OF CONCERN IN THE EARLY
MORNING HOURS BEFORE BURNING OFF BY NOON. OTHER LOCATIONS NEAR
STREAMS, STANDING WATER, OR AGRICULTURAL AREAS MAY ALSO SEE
LOCALIZED PERIODS OF FOG EACH MORNING.
ZONAL FLOW LOOKS TO RETURN BY WEDNESDAY OF NEXT WEEK AS THE CENTER
OF HIGH PRESSURE PUSHES NORTH INTO ALASKA. THIS WILL BRING THE
RETURN OF WESTERLY FLOW WHICH WILL LIKELY MIX THINGS UP, LITERALLY
AND FIGURATIVELY, ALLOWING FOR THOSE STRONG INVERSIONS TO
DISPERSE. A TROUGH MAY START TO INFLUENCE THE AREA NEXT WEEKEND
BUT CONCRETE DETAILS ARE STILL IN THE WORKS.
-GIRALTE
AVIATION
VFR CONDITIONS EXPECTED FOR ALL TERMINALS THROUGH MUCH OF THE
WEEK. KTRK CAN EXPECT FZFG AGAIN FROM 06-16Z TONIGHT. STRONG
INVERSIONS MAY LIMIT SLANTWISE VISIBILITIES FOR SIERRA TERMINALS
THIS WEEK, AS WELL.
-GIRALTE
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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