331
FXUS66 KHNX 170133
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
533 PM PST FRI JAN 16 2026
UPDATE
UPDATED AVIATION AND AIR QUALITY SECTIONS.
KEY MESSAGES
1.) DENSE FOG WILL DEVELOP EACH NIGHT AND MORNING IN THE SAN
JOAQUIN VALLEY THROUGH THE WEEKEND AND INTO NEXT WEEK
2.) EXPECT DRY AND WARM CONDITIONS ELSEWHERE WITH GUSTY
EASTERLY WINDS IN THE SIERRA NEVADA RIDGES AND KERN COUNTY
MOUNTAINS AT TIMES THIS WEEKEND AND INTO NEXT WEEK
3.) OVERNIGHT TEMPERATURES CONTINUE TO BE IN THE LOW 40S IN THE
VALLEY THIS WEEKEND AND THROUGH NEXT WEEK.
DISCUSSION
SOUNDING LIKE A BROKEN RECORD FROM THE PREVIOUS DAYS THIS WEEK,
DENSE FOG CONTINUES TO BE A WEATHER CONCERN AND TRAVEL HAZARD
THIS MORNING WITH A DENSE FOG ADVISORY REMAINING IN EFFECT UNTIL
AT LEAST 11 AM. ONCE AGAIN, OBSERVATIONS, SATELLITE, AND
TRAFFIC CAMERAS WILL CONTINUE TO BE MONITORED AND AN EXTENSION
WILL BE POSSIBLE PENDING THOSE ANALYSES. A GRADUAL CLEARING IS
EXPECTED INTO THE LATER AFTERNOON, BUT DENSE FOG RISK ONCE AGAIN
RETURNS THIS EVENING AND INTO TOMORROW MORNING. WE CONTINUE TO
HIGHLIGHT HIGH TO VERY HIGH RISK CATEGORIES ON THE FOG SEVERITY
INDEX FOR THIS CONTINUED FOG THREAT. WIDESPREAD DENSE FOG, WITH
SOME VISIBILITIES DOWN TO A COUPLE TO A FEW HUNDRED FEET
CONTINUE TO BE PROBABLE GIVEN THIS STAGNANT PATTERN WE ARE IN.
FOGGY CONDITIONS WILL LIKELY CONTINUE UNTIL A PATTERN CHANGE
OCCURS, HOWEVER, THAT DOES NOT LOOK LIKE TO BE THE CASE
UNTIL AT LEAST LATE NEXT WEEK WHERE RIDGING MAY FINALLY BEGIN TO
BREAK DOWN. THOUGH CONFIDENCE IN THAT OCCURING AT THIS TIME IS
LOW. NEVERTHELESS, EXPECT SIMILAR CONDITIONS THROUGH MUCH OF THE
FORECAST PERIOD.
ASIDE FROM THE DENSE FOG, TEMPERATURES CONTINUE TO BE MILD AND
WARM DURING THE AFTERNOONS WITH HIGH TEMEPRATURES IN THE LOW TO
MID 60S IN THE VALLEY, AND NEAR 70S IN THE DESERT REGIONS.
COOLER TEMPERATURES ARE CERTAINLY EXPECTED IN THE HIGHER TERRAIN
AREAS, BUT STILL MILD FOR THIS TIME OF YEAR. TEMPERATURES AT
NIGHT REMAIN IN THE 40S ACROSS THE VALLEY, WITH TEMPERATURES IN
THE 30S TO SOME BELOW FREEZING IN THE DESERT AND HIGHER TERRAIN.
BREEZY CONDITIONS OF 30-35 MPH EASTERLY WINDS WILL BE EXPECTED
DURING THE MORNING HOURS SATURDAY FOR MOUNTAIN PEAKS AND HIGHER
ELEVATION AREAS IN THE SIERRA NEVADA'S AND THE KERN COUNTY
MOUNTAINS.
AVIATION
LIFR AND IFR CONDITIONS CONTINUE AT TERMINAL SITES THIS
AFTERNOON, BECOMING MORE WIDESPREAD THROUGH SATURDAY MORNING.
SIMILAR TO PREVIOUS MORNINGS, EXPECT THESE CONDITIONS TO LINGER
THROUGH AROUND 19-21Z BEFORE SEEING IMPROVEMENTS TO MVFR
CONDITIONS. VFR CONDITIONS WILL PREVAIL OVER THE SIERRA CREST,
COASTAL RANGE, AN IN THE MOJAVE DESERT OVER THE NEXT 24 HOURS.
AIR QUALITY ISSUES
ON SATURDAY JANUARY 17 2026, UNHEALTHY FOR SENSITIVE GROUPS IN
FRESNO, KERN, KINGS, MADERA AND TULARE COUNTIES. FIREPLACE/WOOD
STOVE BURNING STATUS IS: NO BURNING FOR ALL IN FRESNO, KERN, AND
MADERA COUNTIES. NO BURNING UNLESS REGISTERED IN KINGS, 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 HIGH.
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 SATURDAY FOR CAZ301>303-
305>307-309>312-314>316.
PUBLIC...BENNETT
AVIATION....MCCOY
WEATHER.GOV/HANFORD
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