Oahu Surf Report

San Francisco Santa Cruz Monterey San Luis Obispo Santa Barbara Ventura/Oxnard Los Angeles Orange County San Diego Kauai Oahu Maui Big Island
 
Tuesday, April 24th, 7:05am PDT
Hawaii Buoys Swell Wind Temp
NORTHWESTERN HAWAII ONE
 
--- --- --- 19-25 kt 60° 81.0 °F
NORTHWESTERN HAWAII TWO
 
9.2 ft 12 sec --- 19-21 kt 80° 73.8 °F
NORTHERN HAWAII ONE
 
8.2 ft 13 sec --- 17-21 kt 60° 72.9 °F
WHOTS
 
--- --- --- --- --- 75.2 °F
Hanalei, Kauai, HI
 
7.5 ft 13 sec --- --- --- 76.6 °F
Kaneohe Bay, WETS, HI
 
6.9 ft 7 sec 67° --- --- 75.0 °F
Mokapu Point, HI
 
7.9 ft 7 sec 65° --- --- 75.7 °F
Pearl Harbor Entrance, HI
 
2.6 ft 10 sec 150° --- --- 76.8 °F
Pauwela, Maui, HI
 
7.5 ft 13 sec 327° --- --- 75.4 °F
Hilo, Hawaii, HI
 
7.2 ft 9 sec 100° --- --- 77.2 °F
WESTERN HAWAII
 
7.5 ft 9 sec --- 17-19 kt 40° 78.8 °F
SOUTHEAST HAWAII
 
--- --- --- 14-19 kt 70° 78.4 °F
SOUTHWEST HAWAII
 
--- --- --- 19-23 kt 70° 78.4 °F
Ritidian Point, Guam
 
5.2 ft 9 sec 54° --- --- 83.1 °F
Ipan, Guam
 
4.6 ft 10 sec 65° --- --- 83.5 °F
Kalo, Majuro, Marshall Islands
 
4.6 ft 9 sec 47° --- --- 85.1 °F
Buoy data courtesy of NOAA and CDIP
 

NORTHWESTERN HAWAII TWO (NOAA 51101)

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Waimea Bay, Oahu (CDIP 106)

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Mokapu Point, Oahu (CDIP 098)

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View all buoy charts  >>
Buoy data courtesy of NOAA and CDIP
 
Waimea Bay Buoy 7-day Forecast
Waimea Bay buoy forecast courtesy of CDIP
 
Waimea Bay buoy directional graphic courtesy of CDIP
 
 Oahu Wind Observations
KahukuNE(53°)6-15 kt3:00 am  Tue 4/24
Kahuku TrngW(266°)9-20 kt2:59 am  Tue 4/24
KiiENE(63°)15-22 kt2:45 am  Tue 4/24
Oahu Forest NwrENE(73°)16-30 kt3:36 am  Tue 4/24
Kaneohe Mcbh--
BellowsENE(62°)19-23 kt3:00 am  Tue 4/24
Honolulu ApN(6°)7 kt3:00 am  Tue 4/24
Honouliuli Fws--
Waiawa Fws--
Schofield BrksNNE(21°)2 kt2:57 am  Tue 4/24
Schofield South--
Wheeler AafNE(39°)4-10 kt3:30 am  Tue 4/24
Kalaeloa?4 kt3:00 am  Tue 4/24
PalehuaNE(52°)10-21 kt3:36 am  Tue 4/24
Waianae ValleySSE(147°)2-13 kt3:37 am  Tue 4/24
Waianae HarborE(97°)6-12 kt3:15 am  Tue 4/24
Makua RangeE(87°)4-13 kt2:58 am  Tue 4/24
KuaokalaENE(57°)16-27 kt3:36 am  Tue 4/24

Wind observations courtesy of the National Weather Service
 
Haleiwa, Oahu tide chart


Waimanalo, Oahu tide chart


Honolulu, Oahu tide chart
Tide chart courtesy of The University of South Carolina
 
Oahu cloud cover
Satellite imagery courtesy of the National Weather Service
 
Tropical storms map courtesy of the University of Hawaii Institute for Astronomy
 
Coastal waters forecast courtesy of the National Weather Service
 
FZHW52 PHFO 241330 SRFHFO Surf Zone Forecast National Weather Service Honolulu HI 330 AM HST Tue Apr 24 2018 Oahu- 330 AM HST Tue Apr 24 2018 Surf along north facing shores will 4 to 7 feet today, lowering to 2 to 4 feet Wednesday. Surf along west facing shores will be 2 to 5 feet today, lowering to 2 feet or less Wednesday. Surf along east facing shores will be 4 to 7 feet through Wednesday. Surf along south facing shores will be 2 to 4 feet through Wednesday. Outlook through Tuesday May 01: The current, moderate northwest swell will decrease today and Wednesday, followed by a similarly sized northwest swell that will build Thursday and peak Friday and Saturday. A potentially large, shorter period north-northwest swell may arrive later in the weekend. Moderate, rough surf will continue along east facing shores during the next few days, followed by a decline late Thursday into the weekend. An inconsistent southwest swell is expected to maintain south shore surf around background summer levels through Wednesday. Another moderate south-southwest swell is due this weekend. Surf heights are forecast heights of the face, or front, of waves. The surf forecast is based on the significant wave height, the average height of the one third largest waves, at the locations of the largest breakers. Some waves may be more than twice as high as the significant wave height. Expect to encounter rip currents in or near any surf zone.




Oahu surf zone forecast courtesy of the National Weather Service
 
COLLABORATIVE NEARSHORE SWELL AND WIND FORECAST FOR OAHU
NWS/NCDDC HONOLULU HI

301 PM HST MON APR 23 2018


This collaborative forecast will be updated Monday through Friday at 300 PM when Pat Caldwell is available.

FORECAST
DATE
SWL
HGT
DMNT
DIR
DMNT
PD
H
1/3
H
1/10
HGT
TEND

PROB
WIND
SPD
WIND
DIR
SPD
TEND
1PM
04/23
5NW15810SAME17-21ENEUP
7ENE623UP
2SSW1323DOWN
TUE
04/24
4NNW1268DOWNLOW19-23ENESAME
8ENE846UPLOW
2SW1634UPLOW
WED
04/25
2NNW1024DOWNLOW17-21EDOWN
8ENE846DOWNLOW
2SW1534SAMELOW
THU
04/26
3NW1646UPLOW11-16EDOWN
5E834DOWNLOW
2SW1424SAMELOW
FRI
04/27
5NW14810SAMELOW7-10SWUP
4E824DOWNLOW
2SW1323DOWNLOW
SAT
04/28
4NNW1268DOWNLOW11-16NUP
2SW1223DOWNLOW
LEGEND:

SWL HGTOpen ocean swell height measured from trough to crestin feet located 20 nautical miles offshore
DMNT DIRDominant direction typically +/-10 degrees in 16 compasspoints
DMNT PDDominant period in seconds
H1/3Significant wave height in the surf zone
H1/10Average height in the highest one-tenth waves in the surfzone
HGT TENDHeight tendency of swell (valid values: UP/DOWN/SAME)
PROBProbability of occurrence (valid values: HIGH/MED/LOW)
WIND SPDOpen water wind speed measured in knots located20 nautical miles offshore
WIND DIRWind direction in 16 compass points
SPD TENDWind speed tendency (valid values: UP/DOWN/SAME)
Oahu Surf Climatology

Surf heights will vary between different beaches and at the same beach at different break areas.

DISCUSSION: SUMMARY:. Mix of swell directions as common in Spring.

DETAILED:. Mid Monday on northern shores has breakers from 305-320 degrees near to above the April average. Heights are expected to drop a notch on Tuesday.

A low pressure gained severe gale to storm-force strength 4/19-20 as the system approached the Date Line south of the Aleutians. Seas within 20-25 feet over the 305-320 degree band where highest near the Date Line about 1700 nm away. It slowly weakened 4/21-22 as the fetch stretched eastward and aimed less well at Hawaii.

The event is peaking locally 4/23. It is expected to slowly decline Monday night through Tuesday from 305-330 degrees then fade out Wednesday.

The next low off the Kuril Islands spun up to severe gales 4/22. It has a 972 mb low pressure center just north of the Aleutians on the Date Line 4/23. The system has occluded so it is expected to remain fairly stationary and slowly weaken late 4/23-25. It should make for a long-lived event.

Long-period forerunners are expected to slowly build the surf locally Thursday PM from 305-315 degrees. It should peak on Friday from 305-320 degrees similar in size and direction to 4/23. It should slowly decline over the weekend.

Mid Monday on eastern shores has increasing trades with breakers below the trade windswell average. It should build above average on Tuesday.

A 1032 mb high pressure center is moving east to the north of Hawaii near 35N. It is modelled to settle near 40N, 150W on Tuesday as it strengthens to 1035 mb. It should slowly weaken 4/25-26. Rough breakers from windswell should rise above average Tuesday 4/24 from 40-90 degrees and hold into Wednesday 4/25. Breakers should drop below average by Thursday and fade out Friday into Saturday 4/27-28.

See the NWS State Forecast Discussion regarding the changing weather pattern going into the weekend and the uncertainties due to a mix in model output for a pending low pressure cell somewhere within NNW to NNE of Hawaii.

Stay tuned for updates on the wind and potential waves from the nearby low pressure for 4/27-30.

Mid Monday on southern shores has background surf from 180-220 degrees. An increase is due on Tuesday.

A large area of gales to storm-force winds in the southern Tasman Sea 4/15-17 is expected to give a long-period swell locally from 208-220 degrees starting late Monday 4/23. The PacIOOS/CDIP Pearl Harbor Entrance buoy shows a trace of 16-18 second energy. Surf should hold within background to near the summer average 4/24-26 with a downward trend 4/27-28.

Into the long range, a gale low pressure system was in the ideal location SE of New Zealand with a captured fetch aimed at Hawaii over the 185-200 degree band 4/20-22. The ocean surface winds were magnitude deficient so surf is not expected to surpass the summer average. It should have inconsistent forerunners 4/28 in the PM and be filled in by 4/29. It should hold about the same into 4/30. A similar system with ocean surface winds a notch stronger is modelled SE of New Zealand 4/24-25 that could make a follow-up event locally 5/2-4 from the same direction.

In the northern hemisphere, the nearby low pressure within NNW to NNE of Hawaii 4/27-29 is expected generate NNW to NNE surf. It is too early for specifics other than being composed of short- to moderate wave periods combined, making for less organized conditions. Proximity could allow surf above the April average.

Long range forecasts are subject to major revisions.

This collaborative forecast will resume on Wednesday, April 25.

This forecast was produced through the collaborative efforts of NWS and NCEI. Please send suggestions to w-hfo.webmaster@noaa.gov or call the Warning Coordination Meteorologist at 808-973-5275.

ADDITIONAL RESOURCES: See http://www.prh.noaa.gov/hnl/pages/marine.php

NWS Forecaster and NCEI Pat Caldwell

Pat Caldwell surf report courtesy of the National Weather Service
 
Wetsand Hawaii 7-day forecast
Surfline Oahu North Shore 3-day forecast
Oahu South Shore 3-day forecast
Magic Seaweed Pipeline 10-day forecast
Ala Moana 10-day forecast
Long-range surf forecasts provided by Wetsand, Surfline and Magicseaweed