AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
238 PM PDT MON JUN 11 2018

.SYNOPSIS...DRY AND MILD CONDITIONS WILL BE LIKELY ACROSS MUCH OF
THE REGION DURING THE NEXT WEEK.

&&

.DISCUSSION...QUASI-ZONAL FLOW ALOFT OBSERVED DURING MONDAY WILL
TRANSITION TO WEAK TROUGHING OVER THE WEST COAST TUESDAY INTO THE
EXTENDED RANGE. AT THE SURFACE, NORTH WINDS OVER THE OUTER WATERS
MAY BACK TO NORTHWESTERLY ALONG THE HUMBOLDT/DEL NORTE COAST
DURING THE NEXT SEVERAL DAYS, PROMOTING LOCALIZED OROGRAPHICALLY
AIDED STRATUS DEVELOPMENT DURING THE OVERNIGHT HOURS, THAT WILL
LIKELY BURN OFF BY LATE AFTERNOON. MEANWHILE, INLAND VALLEY
TEMPERATURES ARE EXPECTED TO RESIDE IN THE 80S/LOW 90S DURING THE
AFTERNOON...POSSIBLY WARMING TO 90-95 BY THE WEEKEND. LATER THIS
WEEK, MODEL GUIDANCE SHOWS AN UPPER LOW BECOMING POSITIONED OVER
THE NORTHERN ROCKIES AND GREAT BASIN. AT THIS TIME, THE UPPER LOW
IS EXPECTED TO BE TOO FAR EAST TO YIELD PRECIPITATION/THUNDERSTORM
DEVELOPMENT OVER NWRN CA.

&&

.AVIATION...THE COASTAL STRATUS WAS QUITE PERVASIVE ALONG THE
NORTH COAST TODAY. CIG/VIS DROPPED INTO LIFR/IFR AND OCCASIONALLY
INTO MVFR BY LATE MORNING. BY 12 NOON, PLENTY OF THINNING STRATUS
STILL HUGGED MUCH OF THE NORTH COAST WITH ACV`S CIGS OVC002 AND
VIS BELOW 2 MILES. CIG005 WAS ALSO REPORTED AT CEC...EVEN AS
BINOVC WAS BECOMING WIDESPREAD. THEREFORE EXPECT PARTIAL TO MOSTLY
CLEARING...AND THEN LOW CLOUDS RETURNING TO THE COAST AND NEAR-
COASTAL RIVER VALLEYS/HILLS IN THE EVENING/OVERNIGHT. DRY AND WARM
CONDITIONS, ASSOCIATED WITH A RIDGE WILL CONTINUE OVER THE
INTERIOR AREAS. OCCASIONAL BREEZY WINDS TO OCCUR ACROSS SOME
COASTAL SECTIONS THROUGH THE AFTERNOON.

&&

.MARINE...HIGH PRESSURE IS BUILDING OVER THE E PACIFIC WHILE A
THERMAL TROUGH SHARPENS OVER THE MAINLAND. AS A RESULT, NORTHERLY
WINDS WILL BE ON THE INCREASE THIS WEEK. THE STRONGEST WINDS IN
THE SHORT TERM WILL BE OVER THE S WATERS WITH MARGINAL ADVISORY
LEVEL CONDITIONS IN THE N OUTER WATERS. WINDS AND SHORT PERIOD
SEAS ARE EXPECTED TO RAMP UP SIGNIFICANTLY AREA-WIDE BY LATE
WEDNESDAY THROUGH THURSDAY NIGHT, WITH GALE FORCE GUSTS LIKELY IN
THE OUTER WATERS AND THE POTENTIAL FOR AT LEAST A SHORT PERIOD OF
SUSTAINED GALES. IT`S STILL A BIT TOO EARLY TO HOIST A GALE WATCH,
BUT ONE WILL LIKELY BE REQUIRED LATER IN THE WEEK. COMBINED SEAS
WILL BUILD UP TO 11 TO 13 FEET LATE IN THE WEEK. /SEC


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...SMALL CRAFT ADVISORY UNTIL
     9 PM PDT TUESDAY FOR PZZ470.

     SMALL CRAFT ADVISORY UNTIL 9 PM PDT WEDNESDAY FOR PZZ455-475.

&&