305
FXUS66 KHNX 261130
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
430 AM PDT SUN JUL 26 2026
UPDATE
UPDATED AVIATION SECTION.
KEY MESSAGES
1. EXTREME HEAT WARNING CONTINUES FOR THE MOJAVE DESERT AND INDIAN
WELLS VALLEY THROUGH MONDAY EVENING. MAJOR HEATRISK EXPECTED WITH
AFTERNOON HIGHS 108 TO 112 DEGREES EACH DAY.
2. HIGH PRESSURE OVER THE REGION WILL MAINTAIN TEMPERATURES NEAR
SEASON AVERAGES FOR THE REMAINDER OF CENTRAL CALIFORNIA BEFORE
HOTTER CONDITIONS APPEAR LATE NEXT WEEK.
3. MAINLY DRY CONDITIONS PREVAIL UNTIL NEXT WEEK.
DISCUSSION
HIGH PRESSURE REMAINS IN CONTROL OF OUR WEATHER, ALTHOUGH WITH A
DRY SOUTHWEST FLOW ALOFT. TRIPLE DIGIT HEAT PERSISTS IN THE
MOJAVE DESERT AND PARTS OF THE SAN JOAQUIN VALLEY ON SUNDAY. THE
CHANCES OF ANOTHER TRIPLE DIGIT READING ON SUNDAY ARE AT 45-55
PERCENT, MAINLY FRESNO SOUTHWARD. ALTHOUGH, HIGHS SLIGHTLY
LOWER TO THE UPPER 90S IN MUCH OF THE SJ VALLEY ON MONDAY AND
TUESDAY WITH LOWER PROBABILITIES OF HIGHS AT LEAST 100 DEGREES
(15-25 PERCENT).
HOTTER TEMPERATURES ARRIVE BY THE MIDDLE OF THE WEEK. THE
PROBABILITIES OF TRIPLE DIGIT READINGS IN THE VALLEY RISE TO 80
TO 90 PERCENT, EXCEPT CLOSER TO 50 PERCENT TOWARDS MERCED, ON
THURSDAY AND 85-95 PERCENT FOR FRIDAY INTO NEXT WEEKEND. IN
ADDITION, THE PROBABILITY OF A MAXIMUM TEMPERATURE OF AT LEAST
105 DEGREES IN THE CENTRAL VALLEY RISE TO 30-40 PERCENT ON
THURSDAY AND RISES TO 55-65 PERCENT FRIDAY INTO NEXT WEEKEND.
THIS WILL ALSO CORRESPOND TO MAJOR HEAT RISK IN SOME VALLEY
LOCATIONS BY FRIDAY WITH MORE WIDESPREAD COVERAGE BY NEXT
SATURDAY. AS FOR THE MOJAVE DESERT, THEY WILL SEE A HIGH
PROBABILITY OF WIDESPREAD HIGHS OF AT LEAST 105 DEGREES AND A
RETURN OF MAJOR HEATRISK. LOW TEMPERATURES WILL BE UNCOMFORTABLE
FOR MUCH OF THE POPULATION IN THE MAJOR CITIES OF THE SAN
JOAQUIN VALLEY (INCLUDING BAKERSFIELD AND FRESNO) AND MUCH OF
THE DESERT DURING THIS PERIOD WITH LOWS IN THE 70S TO NEAR 80
DEGREES. MINIMUM HUMIDITY WILL BE LOW IN THE HOTTEST LOCATIONS
DURING THIS PERIOD, OR 10-20 PERCENT IN MOST AREAS, WITH VALUES
DOWN TO 5-10 PERCENT IN THE DESERT.
LATEST CPC OUTLOOKS CONTINUE TO SHOW A HIGH LIKELIHOOD OF ABOVE
AVERAGE TEMPERATURES FOR BOTH THE 6-10 DAY AND 8-14 DAY
OUTLOOKS. THE LATEST 8-14 DAY PRECIPITATION OUTLOOK SHOWS A
SLIGHT TILT IN THE ODDS TOWARDS ABOVE AVERAGE FOR KERN COUNTY
AND MUCH OF SOUTHERN CA. WE WILL CONTINUE TO MONITOR FOR THE
POTENTIAL OF ANOTHER MONSOON MOISTURE INTRUSION, BUT WE ARE
LOOKING AT DRY CONDITIONS TO CONTINUE THROUGH NEXT WEEKEND WITH
10 PERCENT OR LOWER CHANCE OF PRECIPITATION THROUGHOUT OUR
FORECAST AREA.
AVIATION
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS.
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
EXTREME HEAT WARNING UNTIL 9 PM PDT MONDAY FOR CAZ337-339.
BSO/CM
WEATHER.GOV/HANFORD
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