017
FXUS66 KHNX 210601
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
1101 PM PDT WED MAY 20 2026
KEY MESSAGES
1. LOW RELATIVE HUMIDITIES IN THE LOWER ELEVATIONS OF CENTRAL
CALIFORNIA BRINGS AT LEAST A MODERATE RISK OF FIRE DANGER THIS
WEEK.
2. WARMING TREND CONTINUES FOR THE REMAINDER OF THIS WEEK.
3. PRACTICE SAFETY AROUND AREA LAKES, RIVERS, AND STREAMS AS
WATER IS STILL RUNNING COLD.
DISCUSSION
HIGH PRESSURE RIDGE PATTERN OFF THE PACIFIC COAST WILL CONTINUE
TO PROVIDE CENTRAL CALIFORNIA WITH WARM TEMPERATURES AND DRY
CONDITIONS. CURRENTLY, MAX TEMPERATURES ARE SLOWING REACHING
INTO THE 90S WITH PROBABILITY OF EXCEEDANCE (POE) ALREADY
HITTING THE 70-90 PERCENT RANGE FOR 90 DEGREES. YET, POE OF
REACHING 95 DEGREES IS ONLY AT 50% ACROSS THE SAN JOAQUIN VALLEY
UNTIL FRIDAY. AT THAT POINT, POE OF 95 DEGREES RISES TO 70-90
PERCENT BEFORE TEMPERATURES DROP DURING THE WEEKEND. WHILE POE
OF REACHING 90 DEGREES IS STILL AT 50 PERCENT ON SATURDAY, POE
DROPS BELOW 20 PERCENT ON SUNDAY (AND MONDAY). THEREFORE, WILL
SEE A COOL DOWN DURING THE WEEKEND AS MAX TEMPERATURES ARE ONLY
EXPECTED IN THE 80S BY SUNDAY. LITTLE RECOVERY WILL BE SEEN
UNTIL THE MIDDLE OF NEXT WEEK.
THE RIDGE PATTERN IS EXPECTED TO BREAK-DOWN BY THE END OF THE
WEEK WITH THE WESTERLIES DOMINATING THE WEST COAST. WHILE THE
BULK OF THE ENERGY FROM THE BREAK-DOWN OF THE RIDGE WILL RESIDE
OVER THE PACIFIC NORTHWEST AND INTER-MOUNTAIN REGION, ENOUGH
ENERGY WILL SHIFT SOUTH AS REFLECTED IN THE COOLING TEMPERATURES
AND THE INCREASED ONSHORE WIND FLOW DURING THE WEEKEND AND
EARLY NEXT WEEK. AT THE SAME TIME, VERY SLIGHT CHANCES (5-10
PERCENT) OF PRECIPITATION WILL BE CONFINED TO THE HIGHEST POINTS
OF THE SIERRA NEVADA RANGE.
WITH THESE WARMING TEMPERATURES, WATER WAYS WILL BE RUNNING
COLD. EXERCISE CAUTION AROUND LAKES, RIVERS, AND STREAMS AS EVEN
THE MOST EXPERIENCED SWIMMERS CAN LOSE DEXTERITY IN COLD WATER.
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
NONE.
PUBLIC/AVIATION....MOLINA
WEATHER.GOV/HANFORD
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