265
FXUS66 KHNX 291049 RRA
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
249 AM PST THU JAN 29 2026
UPDATE
UPDATED AVIATION AND KEY MESSAGES.
KEY MESSAGES
1. DENSE FOG AND A HIGH TRANSPORTATION RISK WITH VISIBILITY DOWN TO
ZERO EACH MORNING THROUGH NEXT WEEK IN THE SAN JOAQUIN VALLEY.
2. DENSE FOG AND A HIGH TRANSPORTATION RISK WITH VISIBILITY DOWN TO
ZERO ARE EXPECTED THIS MORNING IN THE TEHACHAPI MOUNTAINS AND THE
GRAPEVINE.
DISCUSSION
FOG IS EXPECTED TO ONCE AGAIN FORM THIS EVENING INTO TOMORROW
MORNING IN THE SAN JOAQUIN VALLEY. A WEAK SHORTWAVE THAT MOVED
THROUGH THIS MORNING HAS EXITED AND WILL FOLLOWED BY A STRENGTHENING
RIDGE OVER CALIFORNIA. THIS WILL LEAD TO CONTINUED FOG DEVELOPMENT
OVERNIGHT FOR THE VALLEY, AND ABOVE NORMAL TEMPERATURES FOR THE
REGION AS A WHOLE THROUGH SATURDAY. WHILE ANOTHER SHORTWAVE IS
EXPECTED TO MOVE THROUGH ON MONDAY TO SLIGHTLY COOL TEMPERATURES,
THE DOMINATE FEATURE WILL CONTINUE TO BE A RIDGE FOR AT LEAST THE
NEXT WEEK. THIS WILL LIKELY LEAD TO FOG DEVELOPMENT EVERY NIGHT AND
MORNING AND ABOVE NORMAL TEMPERATURES ARE THE REGION DURING THAT
TIME.
LONG TERM OUTLOOKS FROM THE CLIMATE PREDICTION CENTER ALSO HAVE
THIS RIDGING PATTERN CONTINUE INTO EARLY FEBRUARY, WITH LIKELY
ABOVE NORMAL TEMPERATURES AND LIKELY BELOW NORMAL PRECIPITATION
FOR MOST OF THE WEST.
AVIATION
A 60-70 PERCENT CHANCE OF LIFR CONDITIONS EXISTS UNTIL 20Z THURSDAY
AT THE TAF SITES, AS WELL AS THE REMAINDER OF THE SAN JOAQUIN
VALLEY, TEHACHAPI MOUNTAINS, AND THE GRAPEVINE, THEN MVFR/VFR
THROUGH 06Z FRIDAY IN THESE AREAS. CONDITIONS RETURN TO IFR/LIFR
AFTER 06Z FRIDAY AT THE TAF SITES. OTHERWISE VFR CONDITIONS WILL
PREVAIL OVER THE NEXT 24 HOURS.
AIR QUALITY ISSUES
ON THURSDAY JANUARY 29 2026, FIREPLACE/WOOD STOVE BURNING STATUS
IS: NO BURNING UNLESS REGISTERED IN FRESNO, KERN, KINGS, MADERA,
MERCED, AND TULARE COUNTIES. BURNING DISCOURAGED IN 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 NOON PST THURSDAY FOR CAZ301>303-
305>307-309>316-334-335.
EW/BSO
WEATHER.GOV/HANFORD
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page