099
FXUS66 KHNX 231104
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
304 AM PST FRI JAN 23 2026
UPDATE
UPDATED AVIATION SECTION.
KEY MESSAGES
1. A DENSE FOG ADVISORY IS IN EFFECT UNTIL 11 AM PST;
VISIBILITIES WILL FALL BELOW A QUARTER MILE FOR MUCH OF THE
VALLEY.
2. DENSE FOG IN THE VALLEY IS EXPECTED FOR THE NEXT SEVERAL
DAYS.
3. SLIGHT CHANCE OF SNOW ABOVE 7,000 FEET IN THE SIERRA NEVADA
THROUGH FRIDAY. OTHERWISE, DRY CONDITIONS WILL PREVAIL UNTIL
NEXT WEEK.
DISCUSSION
FOG CONTINUES TO DOMINATE THE FORECAST DISCUSSION AND WILL FOR
THE FORESEEABLE FUTURE. VISIBILITY IN THE SAN JOAQUIN VALLEY
WILL FALL TO LESS THAN A QUARTER MILE DURING THE EARLY MORNING
HOURS IN SOME AREAS; WITH WIDESPREAD VISIBILITIES BELOW ONE
MILE. WITH LITTLE IN THE WAY OF STEERING FLOW, PATCHY AREAS OF
REDUCED VISIBILITIES WILL LINGER INTO THE AFTERNOON. A FEW SNOW
FLURRIES ARE POSSIBLE THIS AFTERNOON IN THE MOUNTAINS, BUT
SIGNIFICANT ACCUMULATION IS NOT EXPECTED.
A LOOK INTO THE LONG TERM FORECAST SHOWS LITTLE IN THE WAY OF
CHANGES. WE'LL SETTLE INTO ANOTHER STABLE PATTERN THAT WILL CONTINUE
TO KEEP FOG IN PLACE FOR MUCH OF THE VALLEY INTO THE MIDDLE OF NEXT
WEEK. A WEAK TROUGH IN THE UPPER LEVEL FLOW MAY BRING SOME SHOWERS
INTO THE AREA BUT IT IS UNLIKELY TO BRING THE CHANGE IN ATMOSPHERE
WE'D NEED TO BREAK OUT OF THIS PATTERN.
HIGH TEMPERATURES WILL BE IN THE MID 50S FOR MOST OF THE CWA THE
REMAINDER OF THE WEEK AND INTO THE WEEKEND, WITH LOWS PLEASANTLY IN
THE LOW TO MID 40S EXCEPT AT HIGHER ELEVATIONS IN THE MOUNTAINS.
AVIATION
LIFR VIS IS EXPECTED TO CONTINUE THROUGH THIS MORNING WITH
CONDITIONS IMPROVING TO HIGH MVFR AND POSSIBLY EVEN VFR
CONDITIONS FOR A FEW HOURS AFTER 20Z. SOME LINGERING HZ THIS
AFTERNOON MIGHT PREVENT A FULL RETURN TO VFR ACROSS THE VALLEY
BEFORE FOG BEGINS AGAIN TOMORROW NIGHT AFTER 03Z. WINDS WILL BE
LIGHT AND VARIABLE.
AIR QUALITY ISSUES
ON FRIDAY JANUARY 22 2026, FIREPLACE/WOOD STOVE BURNING STATUS
IS: NO BURNING UNLESS REGISTERED IN FRESNO, KERN, MADERA, AND
TULARE COUNTIES. BURNING DISCOURAGED IN KINGS AND MERCED
COUNTIES, AND KERN (GREATER FRAZIER PARK AREA) AND SEQUOIA
NATIONAL PARK AND FOREST.
CERTAINTY
THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS MEDIUM.
THE LEVEL OF CERTAINTY FOR DAYS 3 THROUGH 7 IS MEDIUM.
CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT
WWW.WEATHER.GOV/HNX/CERTAINTY.HTML FOR ADDITIONAL INFORMATION
AND/OR TO PROVIDE FEEDBACK.
HNX WATCHES/WARNINGS/ADVISORIES
DENSE FOG ADVISORY UNTIL 11 AM PST SATURDAY FOR CAZ301>307-
309>312-314>316.
PUBLIC...TV
AVIATION....EW
WEATHER.GOV/HANFORD
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