191
FXUS66 KHNX 312008
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
108 PM PDT SUN MAY 31 2020
SYNOPSIS
DRY WEATHER CAN BE EXPECTED OVER THE CENTRAL
CALIFORNIA INTERIOR THROUGH MONDAY WITH SEASONABLE AFTERNOON
TEMPERATURES. A RETURN OF TRIPLE DIGIT HEAT IS LIKELY OVER
MUCH OF THE SAN JOAQUIN VALLEY AND THE KERN COUNTY DESERT BY
MIDWEEK ALONG WITH A CHANCE OF AFTERNOON THUNDERSTORMS OVER
THE SIERRA. COOLING RETURNS LATER IN THE WEEK.
DISCUSSION
LOOKS LIKE A GOOD NEWS/BAD NEWS SANDWICH FORECAST IS IN STORE FOR
THE AREA. LUCKILY THE GOOD NEWS WILL BE THE BREAD SO WE GET TWO
SERVINGS OF THAT WITH A LITTLE BAD NEWS MEAT IN THE MIDDLE. THE
FIRST BIT OF GOOD NEWS IS WITH TROUGHING IN PLACE OVER THE WESTERN
THIRD OF THE CONUS WE HAVE NEAR TO SLIGHTLY BELOW NORMAL HIGH
TEMPERATURES FOR THE NEXT COUPLE OF DAYS ALONG WITH A FEW MID TO
HIGH LEVEL CLOUDS MAKING FOR BEAUTIFUL WEATHER IN THESE PARTS.
NOW FOR THE BAD NEWS MIDDLE OF THE SANDWICH, THE STRONG RIDGING
THAT BROUGHT US THE HOT TEMPERATURES LAST WEEK AND CURRENTLY
SITTING OVER THE SOUTH CENTRAL U.S. WILL UNFORTUNATELY RETROGRADE
SLIGHTLY BY LATE TUESDAY AS THE WESTERN TROUGHING BEGINS TO
DEVELOP INTO A CUTOFF LOW FEATURE OVER THE EASTERN PACIFIC JUST
SOUTHWEST OF CALIFORNIA. THE WESTERN PERIPHERY OF THE RIDGE WILL
BUILD WESTWARD INTO THE REGION AND ALLOW FOR A INCREASE IN
TEMPERATURES BUT ALSO ALLOW SOME MOISTURE FROM THE GULF OF
CALIFORNIA TO STREAM NORTHWARD AND INCREASE CHANCES FOR A FEW
SHOWERS AND THUNDERSTORMS OVER THE HIGHER ELEVATIONS OF THE SIERRA
AND EVEN THE KERN MOUNTAINS. AT THIS TIME IT LOOKS AS IF THE FLOW
WILL BE MOSTLY SOUTHERLY SO THE STORMS SHOULD STAY OVER THE
SIERRA NEVADA, BUT FOR ANY STORMS THAT DEVELOP OVER THE KERN
COUNTY MOUNTAINS IT IS POSSIBLE A STRAY THUNDERSTORM OR SHOWER
COULD MOVE INTO THE SOUTHERN SAN JOAQUIN VALLEY.
NOW BACK TO THE SECOND HELPING OF GOOD NEWS. THANKFULLY THIS RIDGE
ENCROACHMENT WILL BE TEMPORARY AND LOOKS LIKE BY LATE THURSDAY THE
CUTOFF FEATURE PREVIOUSLY MENTIONED WILL ONCE AGAIN MOVE EASTWARD,
ALONG WITH A LARGE TROUGH OVER THE EASTERN PACIFIC ORIGINATING
FROM THE GULF OF ALASKA, PUSHING THE RIDGING BACK INTO THE SOUTH
CENTRAL U.S.. THIS WILL ALLOW FOR DECENT SYNOPTIC COOLING AND AN
INCREASE IN CLOUDS WHICH WILL HELP TO BRING HIGH TEMPERATURES BACK
TO NEAR NORMAL LEVELS ON FRIDAY AND BELOW NORMAL FOR SATURDAY INTO
THE BEGINNING OF NEXT WEEK. A ZONAL PATTERN THEN LOOKS TO DEVELOP
WITH AN ONSHORE FLOW AND SHOULD KEEP THE LONGER TERM COOLER ACROSS
THE REGION. SO NOT A BAD FORECAST TO SWALLOW. MUCH BETTER THAN TWO
PARTS OF BAD NEWS I SUPPOSE. BE SAFE OUT THERE.
AVIATION
VFR CONDITIONS WILL PREVAIL THROUGHOUT THE CENTRAL CALIFORNIA
INTERIOR DURING THE NEXT 24 HOURS.
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
AN/OR TO PROVIDE FEEDBACK.
HNX WATCHES/WARNINGS/ADVISORIES
NONE.
PUBLIC...ANDERSEN
AVIATION....CMC
WEATHER.GOV/HANFORD
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