659
FXUS66 KHNX 031643
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
943 AM PDT THU JUL 3 2025
KEY MESSAGES
1. TRIPLE DIGIT HIGH TEMPERATURES ARE EXPECTED AGAIN TODAY IN
THE SAN JOAQUIN VALLEY AND KERN COUNTY DESERT. A COOLING TREND
IS INDICATED IN THE LATEST MODEL GUIDANCE BY FRIDAY AND NEXT
WEEKEND.
2. DRYNESS IS EXPECTED TO CONTINUE THROUGH THE NEXT WEEK WITH
STEADY MINIMUM RH'S IN THE 15 TO 25 PERCENT RANGE IN THE CENTRAL
VALLEY AND IN THE SINGLE DIGITS FOR THE KERN COUNTY DESERT.
LIGHT WINDS WILL KEEP FIRE RISK LOW.
3. TEMPERATURES WILL WARM BACK UP SUNDAY INTO NEXT WEEK.
DISCUSSION
EXPECT ONE MORE HOT DAY IN THE CENTRAL VALLEY FOR TODAY BEFORE
A NOTICEABLE, BUT BRIEF COOLDOWN OCCURS ON INDEPENDENCE DAY AND
SATURDAY. SOME LOCATIONS ARE PROJECTED TO REACH BELOW AVERAGE,
THOUGH GENERALLY IN AREAS OUTSIDE OF EASTERN KERN COUNTY. THIS
IS DUE TO AN UPPER-LEVEL TROUGH OVER NORTHERN CA AND THE PACIFIC
NW ALONG WITH A ZONAL FLOW SETTING UP OVER CENTRAL CA. BREEZY
CONDITIONS WITH LOCALLY GUSTY WINDS ALONG THE WEST SIDE HILLS
AND KERN COUNTY DESERT, INCLUDING ALONG THE SLOPES, WILL OCCUR
TODAY AND INDEPENDENCE DAY. GUSTS MAY LOCALLY REACH ADVISORY
CRITERIA (45 MPH OR STRONGER) ALONG THE MOJAVE DESERT SLOPES
THIS EVENING AND AGAIN ON INDEPENDENCE DAY, ALTHOUGH IT APPEARS
MARGINAL, BASED ON LATEST HIGH RESOLUTION GUIDANCE. OTHERWISE,
HOT TEMEPRATURES WILL PERSIST IN PARTS OF THE KERN COUNTY DESERT
EVEN THROUGH THE HOLIDAY WEEKEND, SUCH AS THE INDIAN WELLS
VALLEY, AS THERE IS SOME PROBABILITY OF TRIPLE DIGIT HEAT OVER
THE NEXT SEVERAL DAYS (IT'S STILL AT LEAST 60-90 PERCENT FOR
THE INDIAN WELLS VALLEY ON INDEPENDENCE DAY AND SATURDAY.
HOWEVER, CHANCES ARE MUCH LOWER, OR ABOUT 15-30 PERCENT FOR THE
REMAINING PORTIONS OF THE DESERT FLOOR FOR THESE TWO DAYS).
WARMING RETURNS BEGINNING SUNDAY AND WILL CONTINUE INTO NEXT
WEEK, AS HIGH PRESSURE REBUILDS OVER OUR FORECAST AREA.
PROBABILITIES OF TRIPLE DIGITS RETURN TO THE SJ VALLEY BY MONDAY
(MOSTLY 20-30 PERCENT, EXCEPT AROUND 30-50 PERCENT FOR KERN
COUNTY) AND WILL INCREASE BY THE MIDDLE OF NEXT WEEK. OVERALL,
IT WILL BECOME A MORE TYPICAL PATTERN FOR JULY. THE CLIMATE
PREDICTION CENTER SHOWS ABOVE AVERAGE TEMPERATURES FOR BOTH THE
6-10 DAY AND 8-14 DAY OUTLOOKS (ABOUT 40-50 PERCENT CHANCE),
WITH A MODERATE RISK OF HAZARDOUS TEMPERATURES OVER THE CENTRAL
VALLEY FOR LATE NEXT WEEK.
AVIATION
18Z UPDATE:
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS ACROSS THE CENTRAL
CALIFORNIA INTERIOR.
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.
BSO/JPK
WEATHER.GOV/HANFORD
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