386
FXUS66 KHNX 021222
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
522 APM PDT SAT MAY 2 2026
UPDATE
UPDATED AVIATION SECTION.
KEY MESSAGES
1. INCREASING CHANCES OF THUNDERSTORMS THROUGH THE WEEKEND OVER
THE SIERRA NEVADA BEFORE DECREASING SLIGHTLY ON MONDAY.
2. COOLING PATTERN BEGINS SUNDAY AS TROUGH SLIDES IN.
3. WARMING TREND ON WEDNESDAY INTO NEXT WEEKEND.
DISCUSSION
A SHORTWAVE RIDGE WILL CONTINUE TO BE OVER THE AREA ON SATURDAY AS
TEMPERATURES CONTINUE TO BE ABOVE AVERAGE AND WARM. THERE IS A 20 TO
55 PERCENT CHANCE OF HIGHS OF AT LEAST 90 DEGREES IN THE VALLEY FOR
SATURDAY.
HOWEVER, A TROUGH SLIDES DOWN LATE SATURDAY INTO SUNDAY MORNING
AND BECOMES A CUTOFF LOW. THIS CUTOFF LOW WILL SLOWLY MAKE ITS
WAY EAST THROUGH TUESDAY KEEPING THINGS UNSTABLE BUT ALSO
COOLER. THERE IS A 10 TO 35 PERCENT CHANCE OF HIGHS OF AT LEAST
75 DEGREES ON MONDAY AND TUESDAY THANKS TO THE TROUGH. IN THE
SIERRA NEVADA, THERE IS A 10 TO 25 PERCENT CHANCE OF
THUNDERSTORMS ON SUNDAY AND MONDAY. ALSO, SNOW LEVELS WILL BE AT
7,500 TO 8,000 FEET WITH THIS LOW, HOWEVER, THERE IS A 20 TO 40
PERCENT CHANCE OF 4 INCHES OR MORE ABOVE 8,000 FEET. IN THE
VALLEY, THERE IS A 10 TO 30 PERCENT CHANCE OF A TENTH OF AN INCH
FOR BOTH SUNDAY AND MONDAY LEADING INTO TUESDAY AFTERNOON. WINDS
WILL PICK UP AS THERE IS A 60 TO 90 PERCENT CHANCE OF 40 MPH
GUSTS FOR THE SIERRA CREST ON SUNDAY AND THE MOJAVE SLOPES AND
DESERT FOR SUNDAY THROUGH TUESDAY.
A RIDGE SLIDES IN WEDNESDAY BRINGING TEMPERATURES UP AND
ENSEMBLES HAVE IT STRENGTHENING INTO NEXT WEEKEND. THERE IS A
55 TO 70 PERCENT CHANCE ON THURSDAY, A 75 TO 90 PERCENT CHANCE
ON FRIDAY AND 65 TO 75 PERCENT CHANCE NEXT SATURDAY FOR HIGHS OF
AT LEAST 90 DEGREES. THE CPC HAVE A 33 TO 40 PERCENT CHANCE OF
ABOVE AVERAGE PRECIPITATION IN BOTH THE 6-10 AND 8-14 DAY
OUTLOOKS. HOWEVER, THERE ALSO IS A 70 TO 80 PERCENT CHANCE IN
THE 6-10 DAY AND A 60 TO 70 PERCENT CHANCE IN THE 8-14 DAY
OUTLOOKS FOR ABOVE AVERAGE TEMPERATURES.
AVIATION
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS OVER CENTRAL
CALIFORNIA.
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.
JPK/CM
WEATHER.GOV/HANFORD
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