478
FXUS66 KHNX 131138
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
438 AM PDT SAT JUN 13 2026
UPDATE
UPDATED KEY MESSAGES AND AVIATION SECTIONS.
KEY MESSAGES
1. HEAT ADVISORY NOW IN EFFECT FOR THE MAJORITY OF THE AREA
UNTIL 11 PM TUESDAY.
2. WIDESPREAD MODERATE HEAT RISK, INCLUDING TRIPLE-DIGIT HEAT,
IN THE LOWER ELEVATIONS THURSDAY UNTIL NEXT WEEKEND. SOME
POCKETS OF MAJOR HEAT RISK, PARTICULARLY NEAR URBAN AREAS.
3. HOT AND DRY CONDITIONS WILL CREATE INCREASED FIRE RISK IN
EASTERN KERN AND TULARE COUNTIES THIS WEEKEND.
4, CHANCE FOR THUNDERSTORMS IN THE SIERRA NEVADA THE NEXT FEW
DAYS, WHICH MAY INCLUDE DRY LIGHTNING.
5. PRACTICE SAFETY AROUND LAKES, RIVERS, AND STREAMS, AS WATER
IS STILL RUNNING COLD.
DISCUSSION
THE HEAT ADVISORY NOW IN EFFECT FOR THE MAJORITY OF THE AREA
UNTIL 11 PM TUESDAY.
THE HEAT CONTINUES, WITH THE MAJORITY OF THE VALLEY SITTING AT
A 70-90% CHANCE TO EXCEED 100 DEGREES SATURDAY AND 50-60% TO
EXCEED 100 DEGREES ON SUNDAY. SUNDAY'S SLIGHT ROLLBACK IN
TEMPERATURE IS ONLY A MOMENTARY AND MINOR OSCILLATION IN THE
INTENSE RIDGE BUILDING OVER THE WEST COAST, AS WE EXPECT HIGH
TEMPERATURES TO STAY NEAR OR EVEN MARKEDLY EXCEED 100 DEGREES
FOR THE BEGINNING OF NEXT WEEK. WITH OVERNIGHT LOWS ONLY IN THE
UPPER 60S TO LOW 70S (PARTICULARLY NEAR URBAN AREAS), THE
ACCUMULATED HEAT EXPOSURE IS SIGNIFICANT. IT IS IMPERATIVE TO
ENSURE ACCESS TO PROPER COOLING, STAY HYDRATED, LIMIT OUTDOOR
ACTIVITY, AND WEAR LIGHT AND BREATHABLE CLOTHING IF YOU MUST BE
OUTDOORS. TAKE EXTRA PRECAUTION FOR VULNERABLE PEOPLE AND FOR
ANIMALS AND CHECK IN ON THOSE IN NEED. IT IS LIKELY NEW HEAT
PRODUCTS WILL BE ISSUED FOR THE COMING WEEK.
THE GOOD NEWS IS THAT CLUSTERS ARE IN UNUSUALLY STRONG
AGREEMENT THAT THE RIDGE WILL BREAK DOWN TO SOME DEGREE LATER
NEXT WEEK, WHICH SHOULD HELP US RETURN TO MORE REASONABLE
TEMPERATURES NEAR CLIMATOLOGICAL NORMALS. THAT BEING SAID, THE
PROLONGED PERIOD OF HOT AND DRY CONDITIONS WILL CREATE CONTINUED
ELEVATED FIRE CONDITIONS, PARTICULARLY IN EASTERN KERN AND
TULARE COUNTIES, THOUGH ALL AREAS SHOULD EXERCISE CAUTION, AS WE
HAVE SEEN MANY FIRES ACROSS THE ENTIRE AREA RECENTLY. THIS FIRE
RISK WILL BE AUGMENTED BY THUNDERSTORM RISK IN THE SIERRA
NEVADA EVERY DAY, WHICH INCLUDES A RISK OF DRY LIGHTNING.
AS PEOPLE ATTEMPT TO COOL DOWN FROM THESE HOT TEMPERATURES,
PLEASE REMEMBER THAT WATERWAYS ARE STILL RUNNING COLD. EVEN THE
MOST EXPERIENCED SWIMMERS CAN LOSE DEXTERITY IN 10-15 MINUTES IN
WATER THAT IS 50 TO 60 DEGREES.
AVIATION
VFR CONDITIONS EXPECTED IN THE SAN JOAQUIN VALLEY FOR THE NEXT
24 HOURS. STRONG SUSTAINED WINDS WITH GUSTS UP TO 24 KTS
EXPECTED AT KBFL FROM 00Z THROUGH 06Z SUNDAY.
AIR QUALITY ISSUES
NONE.
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
HEAT ADVISORY UNTIL 11 PM PDT TUESDAY FOR CAZ300>321-332.
PUBLIC...AC
AVIATION....EW
WEATHER.GOV/HANFORD
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