140
FXUS66 KHNX 281739
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
1039 AM PDT TUE APR 28 2026
KEY MESSAGES
1. WARMING TREND THROUGH THE WEEK INTO THE WEEKEND.
2. 5 TO 15 PERCENT CHANCE OF THUNDERSTORMS IN THE SIERRA NEVADA
THROUGH THURSDAY.
3. NEXT BEST CHANCE OF RAIN FOR THE VALLEY COMES NEXT WEEK.
DISCUSSION
TODAY, THE SIERRA NEVADA GETS THE INTERESTING WEATHER. THERE IS
5-15 PERCENT CHANCE OF THUNDERSTORMS ALONG THE RANGE, WITH THE
HIGHEST CHANCES BEING NORTH OF YOSEMITE VALLEY. WITH ANY
THUNDERSTORM, EXERCISE CAUTION AND SAFETY AND TRY TO GET INSIDE
IF YOU CAN. FOR THE REST OF THE VALLEY, THE WARMING OF
TEMPERATURES BEGINS. THE REX BLOCK PATTERN THAT IS SETTING UP
BECOMES APPARENT. AS THE REST OF THE WORK WEEK GOES BY, THE CWA
CAN EXPECT TEMPERATURES TO CONTINUE TO RISE AS THE LOW FROM THE
REX BLOCK SLIDES OFF AND MOVES EAST. THIS WILL LEAD TO RIDGING
IN THE AREA.
FRIDAY LOOKS TO BE THE WARMEST DAY FOR THE CWA WITH THIS
PARTICULAR RIDGE. AS A MAJORITY OF THE VALLEY HAS A 90 PERCENT
CHANCE OF MEETING AND EXCEEDING TEMPERATURES IN THE MID 80S. ON
THE FLIP SIDE, THERE IS A 10 PERCENT CHANCE OF EXCEEDING
TEMPERATURES ABOVE THE LOW TO MID 90S. TEMPERATURES BEGIN TO
FALL SUNDAY AND INTO THE WORK WEEK AS A CUT OFF LOW TRAVELS INTO
THE AREA. THERE ARE RAIN CHANCES ASSOCIATED WITH IT, BUT REMAIN
LOW WITH A 15-25 PROBABILITY OF PRECIPITATION. THE CPC
CONTINUES TO FAVOR SOME PRECIPITATION WITH THIS LOW, AS THE 6-10
DAY OUTLOOK IS LEANING 50-60 PERCENT ABOVE AVERAGE AND THE 8-14
DAY OUTLOOK IS LEANING 40-50 PERCENT ABOVE AVERAGE
PRECIPITATION. AS THE FORECAST PERIOD GROWS CLOSER, CONFIDENCE
REGARDING HOW MUCH AND WHERE THE PRECIPITATION WILL FALL WILL
GROW HIGHER.
AVIATION
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS OVER CENTRAL
CALIFORNIA. HOWEVER, THERE IS A 5 TO 15 PERCENT CHANCE OF
THUNDERSTORMS FROM 20Z TUE TO 04Z WED OVER THE SIERRA NEVADA.
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...BB
AVIATION....BB
WEATHER.GOV/HANFORD
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