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000
FXUS66 KEKA 251133
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
433 AM PDT SAT MAY 25 2013

.SYNOPSIS...A SERIES OF DISTURBANCES PASSING THROUGH THE AREA
SHOULD BRING SHOWERS TO LOCATIONS MAINLY NORTH OF MENDOCINO COUNTY
FROM LATE THIS AFTERNOON THROUGH SUNDAY MORNING. A STRONGER STORM
WILL BRING RAIN TO ALL OF NORTHWEST CALIFORNIA LATE SUNDAY NIGHT
THROUGH MEMORIAL DAY. SHOWERS SHOULD GRADUALLY DIMINISH TUESDAY
AND WEDNESDAY.

&&

.DISCUSSION...SATELLITE SHOWS CLOUDS OVER MOST OF HUMBOLDT COUNTY
AND PARTS OF DEL NORTE AND TRINITY COUNTIES. SURFACE OBSERVATIONS
AREN`T SHOWING ANY RAIN OR DRIZZLE. HOWEVER, SINCE THE LOCAL RADAR
I BROKEN IT`S DIFFICULT TO KNOW IF ANY SHOWERS ARE OCCURRING.
EXPECT CLOUDS TO START TO DIMINISH THIS MORNING ONLY FOR MORE TO
BUILD IN BY THIS AFTERNOON AS A DISTURBANCE PASSES THROUGH THE
AREA. THIS DISTURBANCE SHOULD BRING SHOWERS TO LOCATIONS MAINLY
NORTH OF MENDOCINO COUNTY FROM LATE THIS AFTERNOON THROUGH SUNDAY
MORNING. RAISED POPS AND QPF SOME TO REFLECT THE LATEST MODEL
RUNS, ESPECIALLY ALONG THE CA/OR BORDER AND THE REDWOOD COAST.
PERHAPS AROUND 0.25 INCH MAY OCCUR IN THE SHOWERS NEAR THE CA/OR
BORDER THROUGH SUNDAY, DECREASING AS ONE HEADS SOUTH. MONDAY IS
THE WETTEST DAY OF THE HOLIDAY WEEKEND AS AN UNSEASONABLY STRONG
STORM MOVES THROUGH, BRINGING WIDESPREAD RAIN TO NORTHWEST
CALIFORNIA. MODELS REMAIN IN GOOD AGREEMENT WITH THE TIMING,
LOCATION, AND QPF AMOUNTS SO BUMPED UP POPS AND QPF TO REFLECT
THIS. A 0.25 TO 0.5 INCH IS POSSIBLY NORTH OF MENDOCINO COUNTY
LATE SUNDAY THROUGH MONDAY WITH LESSER AMOUNTS ACROSS MENDOCINO
COUNTY. THE RAIN TRANSITIONS TO SHOWERS MONDAY NIGHT AND THEN
CONTINUES THROUGH THE MIDDLE OF NEXT WEEK WITH POPS GRADUALLY
LOWERING TO CLIMO AS WE HIT DAY 7.

&&

.AVIATION...LOW CLOUDINESS HAS DEVELOPED N OF CAPE MENDO AND
FARTHER INLAND OVER INLAND VALLEYS. HOWEVER...KCEC REMAINS CLEAR
AS OF 4 AM. IMPROVEMENTS IN CONDITIONS ARE EXPECTED LATER TODAY AS
CLOUDS LIFT AND THIN...BUT A MORE WIDESPREAD CLOUD DECK FROM
FARTHER OFFSHORE IS EXPECTED TO ADVECT INLAND LATE TODAY AND
TONIGHT AS BOUNDARY LAYER FLOW INCREASES SLIGHTLY AND BECOMES MORE
ONSHORE. /SEC

&&

.MARINE...TIGHTER PRESSURE GRADIENT BETWEEN AN INLAND LOW PRESSURE
TROF AND HIGH PRESSURE SW OF THE AREA WILL PERSIST A BIT LONGER
THAN PREVIOUSLY EXPECTED. AS A RESULT...THE SMALL CRAFT ADVISORY
FOR THE S OUTER MARINE LEG HAS BEEN EXTENDED THRU NOON TODAY. SFC
WINDS WILL DROP OFF THIS AFTERNOON AND LIGHTER WINDS WILL PERSIST
THRU SUN. S FLOW IS STILL EXPECTED TO INCREASE BRIEFLY ON MON
AHEAD OF AN APPROACHING FRONT. /SEC

&&

.EKA WATCHES/WARNINGS/ADVISORIES...

CA...NONE.

NORTHWEST CALIFORNIA COASTAL WATERS...

SMALL CRAFT ADVISORY FOR PZZ475.

&&

$$

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