558
FXUS66 KHNX 150600
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
1100 PM PDT THU AUG 14 2025
KEY MESSAGES
1. THE COOLING TREND IS EXPECTED TO CONTINUE THROUGH THE WEEKEND
AND INTO NEXT WEEK, WITH BOTH THE VALLEY AND DESERT REGION
SEEING A MINOR HEAT RISK THROUGH WEDNESDAY.
2. ELEVATED FIRE RISK WITH MINIMUM RELATIVE HUMIDITY EXPECTED
TO BE LESS THAN 10 PERCENT IN THE MOJAVE DESERT WITH BREEZY
WINDS IN THE AFTERNOON TO EVENING.
DISCUSSION
THE COOLING TREND FOR THE REGION CONTINUES AS SLIGHT TROUGHING
ENTERS CALIFORNIA. THIS DISTURBANCE WILL LEAD TO AROUND NORMAL
TO SLIGHTLY BELOW NORMAL TEMPERATURES BY THIS WEEKEND AND
CONTINUE INTO EARLY NEXT WEEK. THE COOLEST DAY OVERALL IS
EXPECTED TO BE THIS SUNDAY. LOOKING INTO MID NEXT WEEK, A
POSSIBLE RIDGE MAY BEGIN TO RETROGRADE WEST AS A TROPICAL SYSTEM
MOVES TOWARDS THE EASTERN SEABOARD OF THE CONUS. THIS RIDGE
WOULD THEN LEAD TO ANOTHER WARMING TREND AND MAY PUT THE VALLEY
BACK INTO THE TRIPLE DIGITS BY NEXT THURSDAY.
DURING THE COOLING TREND THIS WEEKEND, MINIMUM RELATIVE HUMIDITY
IS EXPECTED TO RISE ALONG WITH THE COOLING TEMPERATURES, WITH
THE VALLEY SEEING MINIMUM RH'S RISING INTO THE 30 TO 45% RANGE
BY SATURDAY. THE MOJAVE DESERT REGION IS ALSO EXPECTED TO SEE A
RISE IN RH'S, THOUGH WITH VALUES IN THE LOW TEENS. HOWEVER, A
MINOR FIRE RISK STILL EXISTS FOR THE VALLEY DUE TO BREEZIER
WINDS DURING THIS TIME DUE TO THE CONSISTENTLY DRY FUELS IN THE
AREA. THE DESERT FIRE RISK ALSO REMAINS ELEVATED DUE TO BREEZY
WINDS AND RH'S IN THE LOW TEEN TO SINGLE DIGIT RANGE THROUGH THE
NEXT WEEK.
AVIATION
06Z UPDATE:
VFR CONDITIONS ARE EXPECTED IN THE SAN JOAQUIN VALLEY FOR THE NEXT
24 HOURS.
AIR QUALITY ISSUES
NONE
CERTAINTY
THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS MEDIUM.
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/FIRE WEATHER...EW/MOLINA
DSS/PIO........................MCCOY
WEATHER.GOV/HANFORD
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