668
WHUS46 KEKA 191118
CFWEKA
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
418 AM PDT SUN APR 19 2026
CAZ103-191930-
/O.NEW.KEKA.CF.Y.0009.260420T0700Z-260420T1100Z/
NORTHERN COASTAL HUMBOLDT-
418 AM PDT SUN APR 19 2026
...COASTAL FLOOD ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 AM
PDT MONDAY...
* WHAT...HIGH ASTRONOMICAL TIDES AND A POSITIVE TIDAL ANOMALY WILL
CAUSE MINOR FLOODING IN LOW LYING AREAS AROUND HUMBOLDT BAY. UP
TO ONE HALF FOOT OF SALTWATER INUNDATION ABOVE GROUND LEVEL IS
POSSIBLE NEAR SHORELINES AND TIDAL WATERWAYS. BETWEEN 8.6 AND
9.0 FEET MLLW AT THE NORTH SPIT TIDE GAUGE IS PREDICTED.
* WHERE...NORTHERN COASTAL HUMBOLDT COUNTY.
* WHEN...FROM MIDNIGHT TONIGHT TO 4 AM PDT MONDAY. HIGH TIDE IS AT
02:00 AM AT THE HUMBOLDT BAY NORTH SPIT TIDE GAUGE. SALTWATER
INUNDATION WILL BE POSSIBLE 1 TO 2 HOURS BEFORE AND AFTER HIGH
TIDE.
* IMPACTS...FLOODING OF LOW LYING AREAS AROUND HUMBOLDT BAY
INCLUDING PARKS AND ROADS WITH ONLY ISOLATED CLOSURES EXPECTED.
FLOODING WILL LIKELY IMPACT JACKSON RANCH ROAD IN THE ARCATA
BOTTOMS AND SEVERAL ROADS IN KING SALMON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.
FEET ABOVE GROUND IS LOCALLY DEFINED AS FEET ABOVE THE HIGHEST
ASTRONOMICAL TIDE OR HAT.
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