412
FXUS66 KHNX 270445
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
945 PM PDT SAT SEP 26 2026
KEY MESSAGES
1. MINOR HEAT RISK THROUGH THE WEEKEND INTO MONDAY AS
TEMPERATURES COOL TO EARLY FALL NORMALS. TEMPERATURES CLIMB
BEGINNING TUESDAY.
2. LOW PRESSURE TROUGH APPROACHES CALIFORNIA SUNDAY, BRINGING
COOLER TEMPERATURES AND A POSSIBILITY FOR PRECIPITATION ALONG
THE SIERRA NEVADA MOUNTAINS.
3. LOW BUT NOTABLE CHANCES (10-20%) FOR THUNDERSTORMS ACROSS
THE SIERRA NEVADA MONDAY.
4. LAKE WIND ADVISORIES FOR LAKE ISABELLA AND SAN LUIS RESERVOIR
THROUGH LATE THIS EVENING.
DISCUSSION
A RATHER STRONG DISTURBANCE IS EXPECTED TO ARRIVE OVER THE
REGION DURING THE DAY ON SUNDAY. CURRENTLY, SATELLITE IMAGERY IS
SHOWING HIGHER CLOUDS IN A SOUTHWESTERLY FLOW PUSHING IN AHEAD
OF THE DISTURBANCE AS COOLER TEMPERATURES AND AN INCREASE IN
MOISTURE IS ALREADY BEING FELT. WHILE THE CENTER OF THE
DISTURBANCE WILL RESIDE OVER SACRAMENTO, ENOUGH ENERGY WILL PUSH
INTO CENTRAL CALIFORNIA AND PROVIDE THE DISTRICT WILL A
SIGNIFICANT COOL-DOWN AND STRONG WINDS. BY SUNDAY, POE OF
REACHING 90 DEGREES IS STILL SHOWING A DROP BELOW 30 PERCENT
(OUTSIDE OF BAKERSFIELD) WITH MOST AFTERNOON HIGH VALUES
EXPECTED IN THE UPPER 80S. AT THE SAME TIME, WIND GUSTS POE OF
REACHING ABOVE 35 MPH INCREASES OVER THE FAVORED SPOTS AS PLACES
LIKE MOJAVE AND RIDGECREST ARE EXPECTED TO HAVE PERCENTAGES IN
THE 50-70 PERCENT RANGE.
MONDAY IS STILL SHOWING A CHANGE IN THE WEATHER AS THE STRONG
(DEEP) UPPER LEVEL DISTURBANCE WILL CUT ACROSS CALIFORNIA. WHILE
MOISTURE FROM HURRICANES POLO AND ODALYS SURGE INTO THE BAJA
CALIFORNIA AND DESERT SOUTHWEST AREA, THE TIMING OF THE
DISTURBANCE INTERACTING WITH THE MOISTURE WILL LIMIT THE
MOISTURE’S ABILITY TO SURGE DEEP INTO CENTRAL CALIFORNIA.
CURRENTLY, LONGER-TERM ANALYSIS DOES SHOW WRAP-AROUND MOISTURE
ABLE TO PUSH NORTHWEST AND INTO THE THE SIERRA NEVADA, AS THE
MOUNTAINS WILL SEE AN INCREASE IN MOISTURE. AGAIN, WHILE
LIMITED, ENSEMBLE PRECIPITATION ANALYSIS DOES PLACED A CHANCE OF
SHOWERS (AND THUNDERSTORMS) ON MONDAY. AT THE SAME TIME, POE OF
REACHING 90 DEGREES BOTTOMS OUT AT NEAR ZERO AS THE COOLER AIR
OVERSPREADS MUCH OF THE DISTRICT. THEREFORE, WITH LESS OF A
TEMPERATURE GRADIENT FROM THE VALLEY TO THE DESERT, WINDS ARE
ALSO EXPECTED TO DIMINISH STARTING ON MONDAY.
LATEST ENSEMBLE MODEL CONSENSUS IS STILL SHOWING THE DISTURBANCE
EAST OF THE REGION BY TUESDAY AS RIDGING RETURNS TO THE WEST
COAST. A WARMING TREND WITH DRY CONDITIONS WILL ENTER ON TUESDAY
AND PERSIST FOR MUCH OF THE PERIOD. CLIMATE PREDICTION CENTER IS
PLACING CENTRAL CALIFORNIA IN THE LIKELY ABOVE NORMAL
TEMPERATURES CATEGORIES FOR BOTH 6 TO 10 DAY AND 8 TO 14 DAY
PERIODS. AT THE SAME TIME, PRECIPITATION IS EXPECTED TO REMAIN
AT NEAR NORMAL VALUES.
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
LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING FOR CAZ300.
PUBLIC/AVIATION....MOLINA
WEATHER.GOV/HANFORD
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