This weather forecast explains how an upper level disturbance causes cooler-than-normal temperatures across the Bay Area, with interior locations 5-10°F below normal and higher elevations 25-30°F below normal. The forecast indicates marginal atmospheric instability (100-300 J/kg CAPE) but limited wind shear, resulting in less than 10% thunderstorm chance. Precipitation is expected primarily through terrain enhancement, with 20-50% chance of exceeding 0.10 inches in the hills of Eastern Contra Costa and Santa Clara Counties.
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May 27 KSBW Weather forecastAdded:
FRONT OF THE HOUSING AUTHORITY TO TRY AND GET THEIR ITEMS BACK....### YOUR SUNRISE TIME IS óóóóóóóóóóó.
TIME TO TAKE A LOOK AT WEATHER WITH METEOROLOGIST KYLE BERGERSON... GOOD MORNING HERE IS THE CURRENT VIEW OUTSIDE WITH YOUR CURRENT CONDITIONS.
HERE'S A LOOK AT CURRENT TEMPERATURES ON THE MAP.
THE CENTER OF THE UPPER LEVEL DISTURBANCE RESPONSIBLE FOR THE COOL AND UNSETTLED WEATHER YESTERDAY AND TODAY WILL REMAIN MOSTLY STATIONARY THROUGHOUT THE DAY. HOWEVER IT WILL WEAKEN SLIGHTLY OVER THE COURSE OF THE DAY WITH SUBTLE H50 HEIGHT INCREASES FROM EARLY THIS MORNING INTO THIS EVENING. THE UNUSUALLY COOL AIR ALOFT, ONCE AGAIN LOOKING AT H50 LEVEL, WILL BE BELOW THE TENTH PERCENTILE AT AROUND -21C TO -22C, WITH H85 TEMPS RIGHT AROUND THE TENTH PERCENTILE AT 5C TO 6C. THE COOLER THAN NORMAL TEMPERATURES ALOFT ARE TRANSFERRING TO THE SURFACE WITH LOW LYING INTERIOR LOCATIONS RUNNING 5F-10F DEGREES BELOW NORMAL FOR THIS TIME OF YEAR, AND MUCH COOLER THAN NORMAL AT HIGHER ELEVATIONS, ESPECIALLY THE HIGHEST PEAKS OF BIG SUR AROUND 25F-30F DEGREES BELOW NORMAL.
AS THE UPPER LOW ROTATES OVERHEAD TODAY, PORTIONS OF THE BAY AREA, EAST BAY AND SOUTH BAY WILL SEE PERIODS OF SUNSHINE HELPING TO PRODUCE MARGINAL SURFACE INSTABILITY FROM AROUND 100-300 J/KG OF CAPE THIS AFTERNOON.
VERTICAL WIND PROFILES DONúT FAVOR ORGANIZED CONVECTION, WITH LITTLE TO NO 0-6KM WIND SHEAR. LIKE YESTERDAY IN NAPA COUNTY AND CONTRA COSTA COUNTY THE BEST CHANCES FOR RAINFALL AMOUNTS ABOVE 0.10" WILL BE AREAS OF TERRAIN ENHANCEMENT. THE HILLS OF EASTERN CONTRA COSTA COUNTY AND EASTERN SANTA CLARA COUNTY HAVE APPROXIMATELY 20%-50% CHANCE OF EXCEEDING 0.10" BY LATE THIS AFTERNOON. NBM THUNDERSTORM CHANCES ARE LESS THAN 10% AREA WIDE.
FUTURECAST SHOWS THE TEMPERATURE PATTERN FOR THE NEXT SEVERAL DAYS.
HERE IS A LOOK AT YOUR FORECAST HIGH TEMPERATURES FOR TODAY.
HERE IS A LOOK AT YOUR HIGH TEMPERATURES AND SKY CONDITIONS NEAR THE COAST FOR THE NEXT 8 DAYS.
HERE IS A LOOK AT YOUR HIGH TEMPERATURES AND SKY CONDITIONS IN THE INLAND AREAS FOR THE NE
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