157
FXUS66 KHNX 010922
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
222 AM PDT THU JUN 1 2023
SYNOPSIS
THE WARMING TREND CONTINUES TODAY, WITH THE SAN JOAQUIN VALLEY
SEEING HIGH TEMPERATURES IN THE LOW TO MID 80'S. THE PEAK OF THE
WARMING TREND WILL BE SUNDAY, WITH HIGHS IN THE HIGH 90'S. THESE
SUNDAY HIGHS WILL BE AROUND 6 TO 9 DEGREES ABOVE NORMAL FOR THIS
TIME OF YEAR. TEMPERATURES WILL START TO COOL SLIGHTLY ON MONDAY
AND HIGHS WILL BE AROUND SEASONAL NORMS BY TUESDAY AND INTO
THURSDAY. THE SIERRA NEVADA WILL CONTINUE TO SEE CHANCES FOR
THUNDERSTORMS EVERY AFTERNOON FOR THE NEXT WEEK.
DISCUSSION
WITH THE WEAK DISTURBANCE MOVING OFF TO THE EAST, RIDGE BUILDING
WILL CONTINUE UNTIL SUNDAY, CAUSING THE HIGH TEMPERATURE TO RISE
WITH IT. HIGHS IN THE VALLEY TODAY WILL BE AROUND THE AVERAGE OF
THIS TIME OF YEAR, WHILE HIGHS ON SUNDAY WILL BE AROUND 6 TO 9
DEGREES ABOVE NORMAL. SOME PLACES MAY SEE 100 DEGREES OR ABOVE,
WITH NBM PROBABILITIES SHOWING FRESNO HAS A 21% CHANCE AND HANFORD
HAVING AN 11% CHANCE.
AN UPPER LEVEL TROUGH WILL BEGIN TO DEVELOP AND MOVE INTO OUR AREA
ON MONDAY, WHICH WILL START TO LOWER TEMPERATURES. BY TUESDAY,
HIGHS IN THE VALLEY WILL BE AROUND NORMAL FOR THIS TIME OF YEAR,
IN THE HIGH 80'S. THESE TEMPERATURES ARE EXPECTED TO REMAIN
CONSISTENT THROUGH NEXT THURSDAY. A LOW PRESSURE SYSTEM
ASSOICATED WITH THIS TROUGH WILL CONTINUE TO SPIN OVER CALIFORNIA
AND BRING CHANCES FOR RAIN TO THE EASTERN VALLEY, THE SIERRA
NEVADA MOUNTAINS AND FOOTHILLS, AS WELL AS THE KERN COUNTY
MOUNTAINS AND HIGH DESERT ON TUESDAY.
CHANCES FOR THUNDERSTORMS IN THE SIERRA NEVADA WILL CONTINUE
EVERYDAY IN THE AFTERNOON THROUGH THE NEXT WEEK. THESE CHANCES
INCREASE MONDAY THROUGH WEDNESDAY AS THE LOW PRESSURE SYSTEM MOVES
THROUGH AND COULD EXTEND FROM YOSEMITE VALLEY TO THE SOUTHERNMOST
POINT OF THE RANGE IN KERN COUNTY. THESE STORMS MAY PRODUCE HEAVY
RAIN AT TIMES, THOUGH THIS WILL BE RARE DUE TO THE LACK OF A
SIGNIFICANT MOISTURE POOL. LIGHTNING AND PEA-SIZED HAIL IS STILL A
POSSIBLE HAZARD, SO BE CAUTIOUS AROUND THESE STORMS.
THIS WARMING TREND WILL INCREASE RUNOFF FROM SNOWMELT AND CAUSE
RIVERS AND STREAMS TO RUN HIGHER. THIS COULD LEAD TO FLOODING IN
SOME PLACES. THESE RIVERS ARE CONTINUING TO RUN HIGH AND SWIFT, AS
WELL AS BEING COLD. RIVERS HAVE BEEN CLOSED BY THE COUNTIES, SO
ATTEMPTING TO COOL OFF THIS WEEKEND IS NOT ADVISED.
AVIATION
VFR CONDITIONS WILL PREVAIL AT ALL OF THE TERMINAL AERODROME SITES
THROUGH AT LEAST THE NEXT 24 HOURS. MVFR OR LOWER CONDITIONS ARE
LIKELY IN AND NEAR ANY THUNDERSTORM IN THE MOUNTAIN AREAS THIS
AFTERNOON INTO THIS EVENING.
AIR QUALITY ISSUES
ISSUED: 05/31/2023 15:30
EXPIRES: 06/01/2023 23:59
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...EW
AVIATION....EW
WEATHER.GOV/HANFORD
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