817
FXPA41 PHFO 211531
MFMN10
MARINE FORECAST MATRICES
NATIONAL WEATHER SERVICE HONOLULU HI
531 AM HST FRI AUG 21 2026
THE INFORMATION PRESENTED IN THIS PRODUCT REFLECTS A
FORECAST...RATHER THAN CURRENT INFORMATION. MARINE USERS SEEKING
CURRENT INFORMATION SHOULD CHECK THE LATEST COASTAL WIND AND BUOY
REPORTS.
PHZ180-220200-
BUOY 51101
24.31N 162.08W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E NE E E E SE SE SE E E E E E E E E E E
WIND SPD 8 6 4 5 4 5 8 10 10 11 11 12 13 15 14 14 15 15 14 14 16
WIND GUST 12 9 6 7 6 8 12 15 16 16 16 17 19 22 21 21 22 22 20 20 24
SIG WAVE HGT 6 6 6 6 6 6 5 5 5 6 6 6 6 6 6 6 6 6 7 7 7
PHZ180-220200-
BUOY 51000
23.54N 153.90W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E E E E E E E E E E E E E E E
WIND SPD 14 14 14 13 15 16 15 15 15 16 17 17 18 17 15 14 15 15 14 14 15
WIND GUST 21 21 21 20 22 24 23 23 23 24 26 25 26 25 22 21 22 22 21 21 22
SIG WAVE HGT 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
PHZ180-220200-
BUOY 51004
17.42N 152.51W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E NE NE NE NE NE NE NE E E E E E E E E E E
WIND SPD 16 17 17 17 19 19 20 21 22 23 24 26 28 28 26 25 25 25 21 21 20
WIND GUST 25 25 25 26 28 29 30 31 33 35 37 39 42 41 39 37 37 37 32 32 30
SIG WAVE HGT 6 7 7 8 8 9 9 9 10 11 12 13 14 14 13 12 10 10 9 9 8
TSTMS S S S S S S S S S S S S S
PHZ180-220200-
BUOY 51002
17.17N 157.84W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E E E E NE NE NE NE NE NE NE NE NE NE E
WIND SPD 12 13 14 14 14 15 15 16 18 18 17 16 17 20 20 19 20 20 22 26 30
WIND GUST 18 20 21 21 22 23 23 24 27 27 26 24 26 30 30 29 30 30 32 38 45
SIG WAVE HGT 5 5 5 5 5 5 6 6 6 7 7 8 8 9 9 10 11 11 13 13 13
TSTMS C
PHZ180-220200-
BUOY 51003
19.04N 160.64W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E E E E E NE NE NE NE NE NE NE NE NE NE
WIND SPD 9 9 9 10 12 12 12 14 15 13 10 9 10 11 11 11 12 12 14 14 16
WIND GUST 13 13 13 15 18 18 18 21 22 19 15 14 15 17 17 17 18 18 21 21 24
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 5 6 6 6 6 7 7 8 8 8 8 9
PHZ180-220200-
KURE ATOLL
28.42N 178.33W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR NE NE NE N N N N N N N NW NW NW NW NW W W W W W W
WIND SPD 16 15 14 14 14 12 13 14 15 14 13 13 14 14 13 15 16 16 15 15 14
WIND GUST 23 23 21 21 21 19 20 21 22 20 20 20 22 21 19 23 24 24 22 22 21
SIG WAVE HGT 8 8 8 8 8 8 8 8 8 9 9 10 10 10 10 10 10 10 9 9 9
PHZ180-220200-
MIDWAY ATOLL
28.22N 177.37W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR N N N N N N N N N NW NW NW NW W W W W W W W W
WIND SPD 16 16 14 14 14 12 13 15 16 15 15 15 16 15 15 17 16 16 16 16 15
WIND GUST 23 23 22 21 21 17 20 22 23 22 22 23 24 22 22 25 25 25 24 24 22
SIG WAVE HGT 9 9 9 9 9 9 9 9 9 10 10 10 11 11 11 10 10 10 9 9 9
PHZ180-220200-
LISIANSKI ATOLL
26.08N 174.00W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR NW NW NW NW NW W W W W W SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 17 15 13 13 10 9 12 15 14 12 13 13 13 13 14 13 12 12 11 11 8
WIND GUST 26 22 20 19 16 13 18 23 21 19 20 20 19 20 21 19 17 17 16 16 12
SIG WAVE HGT 13 12 11 10 9 9 9 9 9 9 9 9 9 9 8 8 7 7 7 7 7
TSTMS S S S S
PHZ180-220200-
PEARL & HERMES ATOLL
27.83N 175.83W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR N N N N N NW NW NW NW W W W W W W W W W SW SW SW
WIND SPD 17 16 15 14 13 14 16 18 17 17 17 17 17 16 17 18 17 17 16 16 14
WIND GUST 26 24 23 21 20 21 24 26 25 26 26 26 25 24 26 27 25 25 24 24 20
SIG WAVE HGT 11 11 10 10 10 10 10 11 11 11 11 11 11 11 11 10 10 10 9 9 9
PHZ180-220200-
FRENCH FRIGATE SHOALS
23.86N 166.27W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR S S S S SE SE SE SE SE SE SE SE E E E E E E E E E
WIND SPD 14 12 12 10 10 7 8 9 10 9 8 8 7 9 11 11 11 11 12 12 11
WIND GUST 20 18 18 15 15 10 12 13 15 14 12 12 11 13 16 17 16 16 18 18 16
SIG WAVE HGT 7 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 6 6 6 6
PHZ180-220200-
NIHOA
23.06N 161.92W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E E E E E E E E E E E E E E E
WIND SPD 9 8 6 5 6 6 9 11 9 10 10 12 15 15 15 16 16 16 16 16 16
WIND GUST 13 12 9 7 8 8 13 16 14 15 16 19 22 23 23 24 24 24 24 24 24
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 7 7 7 7 7
PHZ180-220200-
KINGMAN REEF
6.44N 162.34W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR S S SW W W W W W NW NW NW NW NW W W W NW NW SW SW W
WIND SPD 4 4 3 3 2 2 2 3 3 3 3 3 1 1 2 2 1 1 4 4 3
WIND GUST 6 6 5 4 3 2 4 4 4 4 5 4 1 2 3 3 1 1 5 5 4
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
TSTMS
PHZ180-220200-
JOHNSTON ATOLL
16.74N 169.52W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E E E E E E E E E E E E E E E
WIND SPD 11 11 9 10 10 10 12 12 12 11 11 11 11 12 13 15 15 15 14 14 14
WIND GUST 16 17 14 15 15 15 18 19 19 17 17 16 17 18 19 22 22 22 22 22 21
SIG WAVE HGT 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
TSTMS S S S S S S S S
PHZ180-220200-
PALMYRA ATOLL
5.92N 162.00W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR SW S SW W SW W W W NW NW W NW NW W W W W W SW SW W
WIND SPD 4 4 3 3 2 2 3 3 3 3 3 3 2 2 3 3 2 2 4 4 3
WIND GUST 6 6 5 4 3 3 4 5 4 4 5 5 3 2 4 4 3 3 6 6 5
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
TSTMS
PHZ180-220200-
CHRISTMAS ISLAND
2.1N 157.8W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR E E E E E E E NE NE E E SE SE SE SE SE SE SE SE SE SE
WIND SPD 4 3 4 4 5 4 4 5 6 4 3 3 4 4 4 5 5 5 6 6 6
WIND GUST 6 5 6 7 8 6 6 7 9 7 5 5 6 6 6 7 7 7 8 8 8
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 6 6 5 5 5 5 5 5 5 5 5 5
TSTMS S S S S S S S S
PHZ180-220200-
FANNING ISLAND
5.92N 162.00W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR S S S S SE NE N N N N NW NW W S SW S S S SW SW SW
WIND SPD 2 2 3 2 2 2 2 3 2 2 2 2 1 1 2 2 1 1 3 3 1
WIND GUST 3 2 4 3 3 3 3 4 3 3 3 3 2 2 3 3 2 2 5 5 2
SIG WAVE HGT 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
TSTMS
PHZ180-220200-
MARO REEF
25.33N 170.5W
531 AM HST FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
HST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3HRLY 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04
WIND DIR SW SW SW SW SW SW SW S S S S S S S S S S S SE SE SE
WIND SPD 22 18 16 15 13 12 13 13 13 13 13 13 12 13 12 11 11 11 11 11 11
WIND GUST 32 27 24 22 19 18 20 20 19 20 20 19 18 19 18 16 17 17 17 17 16
SIG WAVE HGT 12 11 12 11 10 9 9 8 8 8 8 7 7 7 7 7 6 6 6 6 6
TSTMS C C C C S S S S S S S S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page