390
FNUS70 PHFO 201749
FWSHFO
SPOT FORECAST FOR CORAL REEF MONITORING HOWLAND ISLAND...NOAA
NATIONAL WEATHER SERVICE HONOLULU HI
749 AM HST MON JUL 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0706 HST ON JULY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EARLY THIS WEEK, WINDS WILL REMAIN FAIRLY LIGHT OUT OF THE SOUTH
TO SOUTHEAST. CONDITIONS WILL BE MOSTLY DRY, WITH A SLIGHT
INCREASING TREND IN SHOWERS AS HOWLAND ISLAND SITS UNDER WEAK HIGH
PRESSURE BETWEEN TROUGHS TO THE NORTH AND SOUTH. A STRENGTHENING
TROUGH PASSING NORTH OF HOWLAND ISLAND LATE THIS WEEK WILL LEAD TO
INCREASING CHANCES OF PRECIPITATION AND A LOW POTENTIAL FOR
THUNDERSTORMS BY FRIDAY. A SHORT-PERIOD SOUTH-SOUTHEAST SWELL
FADES THROUGH THE WEEK, WHILE A NEW SOUTH-SOUTHWEST SWELL ARRIVING
TONIGHT BUILDS THROUGH WEDNESDAY BEFORE FADING THE REST OF THE
WEEK. OTHER, SMALLER BACKGROUND SOUTH SWELLS ALSO MOVE THROUGH THE
AREA THIS WEEK.
REST OF TODAY
SKY/WEATHER.........SUNNY.
SURFACE WINDS (KTS).LIGHT WINDS.
SWELL HEIGHT........SOUTH-SOUTHEAST 6 FEET, SOUTH-SOUTHWEST 1 FOOT.
SWELL PERIOD........10 SECONDS, 18 SECONDS.
WAVE HEIGHT.........7 FEET.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS.
SURFACE WINDS (KTS).SOUTHEAST WINDS AROUND 4 KNOTS.
SWELL HEIGHT........SOUTH-SOUTHEAST 6 FEET, SOUTH-SOUTHWEST 2 FEET.
SWELL PERIOD........10 SECONDS, 20 SECONDS.
WAVE HEIGHT.........7 FEET.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS.
SURFACE WINDS (KTS).LIGHT WINDS.
SWELL HEIGHT........SOUTH-SOUTHEAST 5 FEET, SOUTH-SOUTHWEST 2 FEET.
SWELL PERIOD........10 SECONDS, 18 SECONDS.
WAVE HEIGHT.........7 FEET.
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS. NORTH WINDS AROUND 4 KNOTS.
SEAS 6 FEET. SOUTH-SOUTHEAST SWELL 4 FEET, 11 SECONDS.
SOUTH-SOUTHWEST SWELL 3 FEET, 16 SECONDS.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS. NORTHWEST WINDS AROUND 4 KNOTS.
SEAS 6 FEET. SOUTH-SOUTHEAST SWELL 3 FEET, 10 SECONDS.
SOUTH-SOUTHWEST SWELL 3 FEET, 14 SECONDS.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS. WEST WINDS AROUND 7 KNOTS.
SEAS 5 FEET. SOUTH-SOUTHEAST SWELL 3 FEET, 9 SECONDS.
SOUTH-SOUTHWEST SWELL 2 FEET, 13 SECONDS.
FORECASTER...QUESADA
REQUESTED BY...FAITH KNIGHTON
TYPE OF REQUEST...MARINE
.TAG 2617751.1/HFO
.DELDT 07/20/26
.FORMATTERVERSION 2.0.0
.EMAIL HANNAH.BARKLEY@NOAA.GOV,ALLAN.WILKINSON@NOAA.GOV,ANDREW.SHANTZ@NOAA.GOV,KELLI-ANN.E.BLISS@NOAA.GOV,CALLA.LLOYD-LIM@NOAA.GOV,MATTHEW.CHAUVIN@NOAA.GOV,CO.SETTE@NOAA.GOV,JOAO.GARRIQUES@NOAA.GOV,THOMAS.OLIVER@NOAA.GOV,NAV.SETTE@NOAA.GOV,OPS.SETTE@NOAA.GOV,XO.SETTE@NOAA.GOV,FAITH.KNIGHTON@NOAA.GOV
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