009
FXUS66 KEKA 170006
AFDEKA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
406 PM PST MON DEC 16 2024
SYNOPSIS
LIGHT RAINFALL AND GUSTY SOUTHERLY WINDS WILL
CONTINUE TONIGHT. WARMING TEMPERATURES AND ANOTHER CHANCE FOR
LIGHT RAINFALL CAN BE EXPECTED THIS WEEK. A MORE ACTIVE PATTERN
WITH STRONGER FRONTAL SYSTEMS IS PROBABLE THROUGH THE WEEKEND AND
LIKELY NEXT WEEK.
DISCUSSION
LIGHT SHOWERS ARE MOVING IN WITH A WEAK FRONT.
SOUTHERLY WINDS ARE INCREASING, BUT ARE EXPECTED TO REMAIN BELOW
ADVISORY LEVEL, APART FROM SOME OF THE HIGHER PEAKS. THE STRONGER
WINDS WILL BECOME MORE FOCUSED IN DEL NORTE COUNTY TONIGHT. HIGH
PRESSURE RIDGING WILL GENERALLY BUILD IN THIS WEEK, BRINING WARMER
DAYTIME TEMPERATURES. ANOTHER WEAK FRONTAL SYSTEM WILL CLIP THE
REGION LATE TUESDAY THROUGH WEDNESDAY, AND WILL BRING SOME MORE
LIGHT RAINFALL. THIS RAINFALL WILL MOSTLY BE FOR DEL NORTE COUNTY
WHERE AROUND A HALF INCH IS FORECAST. PERIODS OF CLEARING
CONDITIONS AND ABUNDANT SURFACE MOISTURE WILL CREATE A FAVORABLE
ENVIRONMENT FOR OVERNIGHT AND EARLY MORNING FOG DEVELOPMENT,
PARTICULARLY STARTING WEDNESDAY NIGHT.
THE HIGHEST PROBABILITY FOR DRY WEATHER IS THURSDAY. THE CHANCES
FOR AT LEAST SHOWERS BEGIN TO INCREASE FRIDAY IN ADVANCE OF WHAT
WILL LIKELY BE THE FIRST OF MULTIPLE STRONGER WEATHER SYSTEMS,
WHICH WOULD MOVE THROUGH THIS WEEKEND AND NEXT WEEK. ENSEMBLES
CONTINUE TO RESOLVE ATMOSPHERIC RIVER TYPE CHARACTERISTICS WITH
THESE SYSTEMS, THUS STRONG SOUTHERLY WINDS AND HYDROLOGICAL
CONCERNS WILL BE LIKELY IF THE STORM TRACK REMAINS FAVORABLE.
CHANCES FOR GREATER THAN 2 INCHES OF RAINFALL IN 24 HOURS ARE
MODERATE THROUGH THE WEEKEND, BUT CURRENTLY INCREASE BEYOND THE
WEEKEND. NBM PROBABILITY OF WIND GUSTS OF 45 TO 50 MPH HAVE
INCREASED AND ARE MODERATE TO HIGH ON SATURDAY. /JJW
AVIATION
MVFR/VFR CONDITIONS WITH ISO-SCT SHRA MOVING ONSHORE
THIS AFTERNOON. SHRA WILL CONTINUE TO INCREASE IN COVERAGE LATE THIS
AFTERNOON. BRIEF PERIODS OF IFR CONDITIONS WITH THE HEAVIEST SHOWERS
POSSIBLE FOR KCEC AND KACV THROUGH AT LEAST 02Z. HIGH-RES MODELS
SUGGEST THIS SHOWERS GRADUALLY TAPERING OFF DURING THE EVENING HOURS
FROM SOUTH TO NORTH, WITH LINGERING SHOWERS INTO TUESDAY MORNING. IFR
CEILINGS ARE EXPECTED TO DEVELOPED TONIGHT AT UKI. SURFACE WINDS
FROM S AT 5 TO 15 KT, WITH OCCASIONAL HIGHEST GUSTS AT CEC.
STRONGER WINDS ALOFT WILL CONTINUE TO GENERATE LLWS FROM 35 TO 45
KTS AROUND 1500-2000 FT MSL AT CEC THROUGH 04Z. -ZVS
MARINE
SOUTHERLY WINDS CONTINUES STRENGTHENING ACROSS THE
NORTHERN WATERS THIS AFTERNOON, WITH STRONG TO NEAR GALE BREEZES.
LOCALLY GALE FORCE GUSTS IS FORECASTED AROUND PT ST GEORGE THROUGH
LATE AFTERNOON. WHILE MODERATE TO FRESH BREEZES FOR THE SOUTHERN
WATERS. WINDS WILL SLOWLY DIMINISH NORTH OF CAPE MENDOCINO TONIGHT,
BUT INCREASE AGAIN ON TUESDAY MORNING. ANOTHER LARGE WESTERLY SWELL
IS EXPECTED TO MOVE ACROSS THE WATERS LATE TONIGHT THROUGH TUESDAY
AFTERNOON. CONDITIONS WILL REMAIN HAZARDOUS FOR SMALL CRAFT THROUGH
AT LEAST WEDNESDAY, BEFORE A SERIES OF STRONG SYSTEM MOVES THROUGH
LATE THIS WEEK AND WEEKEND.
COASTAL FLOODING
HIGH TIDES ARE PREDICTED TO BE AT 7.96 FEET @
12:14 PM ON TUESDAY. TIDES WITH COMBINED WITH SURGE AND ANOMALY
MAY REMAIN BELOW ADVISORY FOR TUESDAY, BUT THIS CAN CHANGE
DEPENDING OF THE PERSISTING STRONG SOUTHERLY WINDS. MINOR COASTAL
FLOODING AROUND HUMBOLDT BAY, INCLUDING KING SALMON AND JACKSON
RANCH ROAD IN THE ARCATA BOTTOMS WILL BE POSSIBLE.
EKA WATCHES/WARNINGS/ADVISORIES
CA...
WINTER WEATHER ADVISORY UNTIL 10 PM PST THIS EVENING FOR
CAZ107-108.
NORTHWEST CALIFORNIA COASTAL WATERS...
SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ450-
470.
SMALL CRAFT ADVISORY UNTIL 3 PM PST THIS AFTERNOON FOR
PZZ455-475.
SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO 3 AM PST
WEDNESDAY FOR PZZ455.
SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO 9 PM PST
WEDNESDAY FOR PZZ475.
VISIT US AT HTTPS://WWW.WEATHER.GOV/EUREKA
FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTPS://WWW.FACEBOOK.COM/NWSEUREKA
HTTPS://WWW.TWITTER.COM/NWSEUREKA
FOR FORECAST ZONE INFORMATION
SEE THE FORECAST ZONE MAP ONLINE:
HTTPS://WWW.WEATHER.GOV/IMAGES/EKA/ZONEMAP.PNG
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page