000
FXHW60 PHFO 232014
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
1000 AM HST MON NOV 23 2009

.SYNOPSIS...
A HIGH FAR TO THE NORTHEAST WILL MOVE EAST...AND THE TRADE WINDS 
WILL BE AT MODERATE LEVELS THROUGH TUESDAY. ANOTHER HIGH WILL PASS 
NORTH OF THE ISLANDS...RESULTING IN AN INCREASE IN THE TRADES LATE 
TUESDAY THROUGH THURSDAY. SHOWERS WILL FOCUS ON WINDWARD AND MAUKA 
SECTIONS.

&&

.DISCUSSION...
HIGHER PRESSURE TO THE NORTH AND LOWER PRESSURE TO THE SOUTH...PLUS 
THE EVER-PRESENT CORIOLIS EFFECT TURNING THE WINDS TO THE RIGHT... 
MEANS MORE TRADE WINDS THIS WEEK. THE TRADE WINDS WILL INCREASE A 
LITTLE TUESDAY NIGHT INTO THURSDAY WHEN AN EAST-MOVING HIGH PASSES 
TO OUR NORTH...TIGHTENING THE PRESSURE GRADIENT AS IT GOES. THE 
TRADES WILL RETURN TO LIGHT TO MODERATE THROUGH SATURDAY WHEN THE 
HIGH MOVES OFF TO THE NORTHEAST...THEN PICK UP AGAIN WHEN YET 
ANOTHER HIGH PASSES BY TO THE NORTH. 

A WEAKENING COLD FRONT MAY BRING SOME ORGANIZATION TO THE SHOWERS 
NEAR KAUAI THIS SUNDAY. OTHERWISE...SHOWERS WILL REMAIN RANDOM... 
FAVORING THE USUAL WINDWARD AND MAUKA SECTIONS WITH AN EXPOSURE TO 
THE EAST WINDS. THE ABSENCE OF A DESTABILIZING UPPER LEVEL TROUGH OR 
LOW MEANS THAT THERE IS LITTLE OR NO CHANCE OF SIGNIFICANT RAINFALL 
THIS WEEK. 

&&

.MARINE...
SURF ALONG SELECT NORTH AND WEST FACING SHORES WILL DROP BELOW 
ADVISORY LEVELS TUESDAY THEN RISE ABRUPTLY TUESDAY NIGHT. THE SECOND 
ROUND OF SURF MAY REQUIRE A HIGH SURF WARNING FOR WAVES EXCEEDING 25 
FEET WEDNESDAY. THE SWELL WILL SLOWLY DECREASE THEREAFTER. IT IS NOT 
OUT OF THE QUESTION FOR ADVISORY LEVEL SURF TO PERSIST THROUGH THE 
REMAINDER OF THE WEEK ALONG NORTH FACING SHORES.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST TUESDAY FOR NORTH AND WEST SHORES 
OF NIIHAU AND KAUAI...AND NORTH SHORES OF OAHU MOLOKAI AND MAUI.

&&

$$

CRAIG