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Displaying AFOS PIL: AFDHFO Product Timestamp: 2005-05-05 02:00 UTC
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000 FXHW60 PHFO 050130 AFDHFO HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 400 PM HST WED MAY 4 2005 .SYNOPSIS... WINDS WILL BECOME LIGHT AND VARIABLE MOST AREAS TONIGHT...LEADING TO CLEARING SKIES. LIGHT TRADE WINDS WILL SLOWLY RETURN ON THURSDAY...AND MODERATE TRADES WILL BUILD BY FRIDAY. THE LIGHT TRADE WINDS WILL ALLOW AFTERNOON SEA BREEZES TO PRODUCE UPSLOPE CLOUDS ON THURSDAY...BUT LITTLE RAINFALL IS EXPECTED. THE RELATIVELY DRY TRADE WIND WEATHER WILL CONTINUE INTO NEXT WEEK. && .DISCUSSION... A SURFACE RIDGE OF HIGH PRESSURE NEAR KAUAI THIS AFTERNOON WILL MOVE SLOWLY NORTH THROUGH SATURDAY...AS LOW PRESSURE NORTH OF THE ISLANDS IS REPLACED BY A WEAK HIGH. THE FLOW AROUND THE RIDGE IS CURRENTLY PRODUCING LIGHT EAST WINDS NEAR THE MAUI AND THE BIG ISLAND...AND LIGHT SOUTHEAST WINDS NEAR THE OTHER ISLANDS. AS THE RIDGE MOVES SLOWLY NORTH...WINDS WILL BECOME EASTERLY STATE-WIDE ON THURSDAY... BUT SPEEDS WILL LIKELY BE LIGHT ENOUGH TO ONCE AGAIN ALLOW AFTERNOON SEA BREEZES TO DEVELOP OVER MOST AREAS OF THE SMALLER ISLANDS. LIKE TODAY...EXPECT THIS TO RESULT IN SOME AFTERNOON UPSLOPE CLOUDINESS... BUT LITTLE IF ANY RAINFALL. LAND BREEZES MAY ONCE AGAIN DEVELOP LATE THURSDAY NIGHT...BUT TRADES WILL BE STRONG ENOUGH BY FRIDAY TO OVERRIDE LOCAL LAND AND SEA BREEZES EXCEPT IN SHELTERED LEE AREAS. THE RETURN OF MODERATE TRADES WILL HELP TO MAKE IT FEEL A LITTLE MORE COMFORTABLE...BUT DEWPOINTS WILL REMAIN IN THE MID TO UPPER 60/S...AND THERE WILL BE AMPLE SUNSHINE...SO WARM TEMPERATURES WILL CONTINUE. DRY TRADE WIND WEATHER IS EXPECTED THROUGH THE FIRST PART OF THE WEEKEND...AS MID LEVEL RIDGING PREVAILS OVER THE STATE. THE MID LEVEL RIDGE IS FORECAST TO WEAKEN LATER THIS WEEKEND...WHICH WILL ALLOW A FEW MORE TRADE SHOWERS TO DEVELOP...BUT RAINFALL AMOUNTS WILL CONTINUE TO BE MINIMAL. LONG RANGE MODELS INDICATE THAT MODERATE TRADES AND RATHER STABLE CONDITIONS WILL PREVAIL THROUGH NEXT WEEK...WITH LITTLE IN THE WAY OF ORGANIZED RAINFALL. && .MARINE... SURF ALONG SOUTH FACING SHORES WILL BE AT OR ABOVE ADVISORY LEVELS THROUGH FRIDAY...WITH THE SURF PEAKING ON THURSDAY AND DIMINISHING SLOWLY ON FRIDAY. && .HFO WATCHES/WARNINGS/ADVISORIES... HIGH SURF ADVISORY FOR SOUTH FACING SHORES ALL ISLANDS. && $$ BIRCHARD