608
FXHW60 PHFO 061320
AFDHFO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
320 AM HST SAT JUN 6 2026
SYNOPSIS
BREEZY TRADE WINDS WILL PERSIST THROUGH THE WEEKEND AND AT LEAST
THE FIRST HALF OF NEXT WEEK, PUSHING SHOWERS OVER MOSTLY WINDWARD
AND MAUKA LOCATIONS.
DISCUSSION
CURRENT (AS OF 3AM), SATELLITE AND RADAR TRENDS SHOW LOW LEVEL
CLOUDS AND SCATTERED SHOWERS ONGOING ACROSS THE ISLAND CHAIN
MAINLY IMPACTING WINDWARD AND MAUKA LOCATIONS. A 1030 MB HIGH
FAR NORTH OF THE ISLANDS WILL REMAIN IN PLACE THROUGH THE FIRST
HALF OF NEXT WEEK. STABLE AND BREEZY TRADE WINDS EXPECTED. SHOWERS
WILL MAINLY IMPACT WINDWARD AND MAUKA LOCATIONS PARTICULARLY IN
THE OVERNIGHT TO EARLY MORNING HOURS.
BY THE LATER HALF OF NEXT WEEK, A FRONT PASSING FAR TO THE NORTH
OF THE ISLANDS COULD PUSH THE SURFACE HIGH PRESSURE EAST,
DECREASING TRADE WIND SPEEDS.
AVIATION
MODERATE TO BREEZY TRADES THROUGH THE WEEKEND. LOW CIGS AND SHRA
SHOULD PRIMARILY IMAPCT WINDWARD AND MAUKA LOCATIONS WITH SOME
LIMITED SPILLOVER TO A FEW LEEARD AREAS. MVFR CONDS POSSIBLE IN
SHRA, OTHERWISE VFR PREVAILS.
AIRMET SIERRA IS IN EFFECT FOR MTN OBSC ACROSS WINDWARD AREAS OF OAHU
MOLOKAI, MAUI AND THE BIG ISLAND. CONDS SHOULD IMPROVE LATER THIS
MORNING.
AIRMET TANGO IS IN EFFECT FOR MOD TURB DOWNWIND OF TERRAIN DUE TO
BREEZY TRADE WINDS.
MARINE
AN AREA OF SURFACE HIGH PRESSURE WILL RESIDE FAR NORTHEAST OF THE
ISLANDS THROUGH THE REMAINDER OF THIS WEEKEND AND HELP MAINTAIN
FRESH TO STRONG EASTERLY TRADES. A SMALL CRAFT ADVISORY WILL
REMAIN IN EFFECT FOR ALL LOCAL COASTAL WATERS THROUGH AT LEAST
SUNDAY MORNING. TRADE WINDS WILL EASE SLIGHTLY EARLY NEXT WEEK AS
HIGH PRESSURE ONCE AGAIN SHIFTS AWAY TO THE NORTHEAST, THOUGH
SMALL CRAFT ADVISORIES FOR THE TYPICAL WINDY WATERS SURROUNDING
MAUI COUNTY AND THE BIG ISLAND MAY STILL BE WARRANTED.
SOUTH-SOUTHWEST SWELL WILL GRADUALLY FADE TODAY AND BE REPLACED
BY MAINLY BACKGROUND ENERGY. THUS, SURF WILL REMAIN IN THE 4 TO 6
FOOT OR 3 TO 5 FOOT RANGE THROUGH SUNDAY AFTERNOON, NEAR THE JUNE
AVERAGE. A FRESH, SMALL LONG- PERIOD (18-20 SEC) SOUTH SWELL IS
EXPECTED TO ARRIVE LATE SUNDAY AND PEAK ON MONDAY. THE SOURCE OF
THIS NEW SWELL IS A STORM-FORCE LOW THAT PASSED SOUTHEAST OF NEW
ZEALAND LAST WEEKEND. THUS, EXPECT A BRIEF BUMP UP IN SURF ALONG
SOUTH FACING SHORES, BUT STILL BELOW ADVISORY- LEVEL. THIS SWELL
WILL GRADUALLY FADE INTO MIDWEEK.
ALONG NORTH-FACING SHORES, A SMALL SHORT TO MEDIUM PERIOD NORTH
SWELL WILL CONTINUE TO FADE OVER THE REMAINDER OF THIS WEEKEND AND
INTO EARLY NEXT WEEK. SURF ALONG EAST- FACING SHORES WILL REMAIN
CHOPPY THROUGH MID-NEXT WEEK AS LOCALLY STRONG TRADES PERSIST.
HFO WATCHES/WARNINGS/ADVISORIES
SMALL CRAFT ADVISORY UNTIL 6 AM HST SUNDAY FOR ALL HAWAIIAN
WATERS-
DISCUSSION...WALSH
AVIATION...WALSH
MARINE...THOMAS
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