000 
FXHW60 PHFO 191253
AFDHFO

HAWAIIAN ISLANDS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST MON DEC 19 2005

.SYNOPSIS...
THE STRONG KONA WINDS ASSOCIATED WITH YESTERDAY/S DRY FRONTAL 
PASSAGE HAVE TURNED NORTHWESTERLY AND SLACKENED OFF TO MODERATE 
SPEEDS. THESE WINDS WILL REMAIN MODERATE TODAY...THEN BECOME LIGHT 
AND VARIABLE AGAIN TONIGHT THROUGH WEDNESDAY AS HIGH PRESSURE COMES 
TO REST OVER THE ISLANDS. ANOTHER WEAKER FRONTAL SYSTEM IS FORECAST 
TO MOVE RAPIDLY THROUGH THE ISLANDS THURSDAY...BRINGING ANOTHER 
BATCH OF NORTH TO NORTHWEST WINDS ALONG WITH SOME CLOUDS AND A FEW 
SHOERS...WITH A RETURN TO LIGHT WINDS OVER THE CHRISTMAS WEEKEND.

&&

.DISCUSSION...
THE STRONG STORM THAT BROUGHT YESTERDAY/S WINDS IS NOW SOME 1100 
MILES NORTHEAST OF HONOLULU AND MOVING RAPIDLY OFF TOWARD THE 
NORTHEAST. IN THE WAKE OF THIS STORM...HIGH PRESSURE IS BUILDING IN 
OVER THE ALOHA STATE...BRINGING MODERATE NORTHERLY WINDS...CLEAR 
SKIES AND RATHER COOL MORNING TEMPERATURES. A THIN LINE OF CLOUDS 
AND SHOWERS STILL MARK THE FRONTAL LOCATION...NOW MOVING ONTO THE 
BIG ISLAND OF HAWAII FROM THE ALENUIHAHA CHANNEL. SATELLITE REVEALS 
THAT THIS FRONT HAS SLOWED TO A CRAWL...AND WILL LIKELY STALL OVER 
THE BIG ISLAND OF HAWAII...POSSIBLY GIVING THEM A FEW SHOWERS 
THROUGH THE DAY TODAY. THE REST OF THE STATE WILL BE MOSTLY DRY WITH 
FINE...BUT COOL...WEATHER.

WINDS CONTINUE AT 45 TO 55 MPH OVER THE SUMMIT AREAS OF THE BIG 
ISLAND...BUT HAVE DECREASED OVER THE SUMMIT OF MOUNT HALEAKALA THIS 
MORNING. EXPECT WINDS WILL BE ON THE DECREASE THIS MORNING OVER THE 
SUMMIT AREAS...BUT HAVE CONTINUED THE HIGH WIND WARNING THERE 
THROUGH NOON JUST IN CASE. WITH THE HIGH PRESSURE BUILDING OVER THE 
AREA...EXPECT LIGHT WINDS TO RULE TONIGHT AND WEDNESDAY. FORECAST 
MODELS ARE NOW PREDICTING ANOTHER STORM TO MOVE BY TO OUR NORTH ON 
THURSDAY...SWINGING ANOTHER...WEAKER...COLD FRONT THROUGH THE 
ISLAND CHAIN AND TURNING OUR WINDS NORTHWEST TO NORTH FOR CHRISTMAS 
EVE. MODELS INDICATE FINE WEATHER AND LIGHT WINDS FOR THE CHRISTMAS 
WEEKEND...HOWEVER.

&&

.MARINE...
LARGE NORTHWEST SWELLS HAVE BEEN BUILDING FURTHER AT OUR NORTHWEST 
BUOY AS A VERY LARGE NORTHWEST SWELL GENERATED BY THE STORM THAT 
MOVED BY TO OUR NORTH CONTINUES TO IMPACT THE MAIN HAWAIIAN ISLANDS. 
THUS HAVE INCREASED THE SIZE OF THE EXPECTED SURF AND ALSO THE AREA 
UNDER A HIGH SURF WARNING AND ADVISORY FOR TODAY THROUGH TUESDAY 
MORNING. THE SURF IS EXPECTED TO PEAK LATER TODAY INTO TONIGHT... 
THEN DECREASE ON TUESDAY. A SMALL CRAFT ADVISORY IS ALSO IN EFFECT 
FOR THE LARGE NORTHWEST SWELL.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
WIND WARNING FOR MAUNA KEA AND MAUNA LOA...BUT CANCELLED FOR 
HALEAKALA ON MAUI.

HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU... 
KAUAI...OAHU...MOLOKAI AND MAUI THROUGH TUESDAY MORNING.

HIGH SURF ADVISORY FOR THE NORTH AND WEST FACING SHORES OF THE BIG 
ISLAND OF HAWAII THROUGH TUESDAY MORNING.

SMALL CRAFT ADVISORY THROUGH EARLY WEDNESDAY MORNING FOR MOST 
HAWAIIAN WATERS EXPOSED TO LARGE NORTHWEST SWELL.

&&

$$
FARRELL