BUOY 51004 (STORMSURF)

Surf Forecasts and Marine Weather - No Hype - Just the Facts!

El Nino - Becomes Apparent on the Oceans Surface! - Watch the Video HERE (4/19/26)

Create Your Own Surf Forecast

Buoy 51004 Southeast Hawaii
Longitude = 152.52W Latitude = 17.44N
FAQs

Frequency Analysis - Current Hour
(Swell height in each period/frequency band)

Measurement Date/Time (GMT)

04/21
04:00:00

Historical Surf Height...Time Lapse Spectral Density... Primary Swell Profile

Current Swell & Surf Analysis
Buoy 51004
04:00:00 (GMT) on 04/21
Sea Height:	3.1 ft
Primary Swell Height:	1.4 ft
Primary Swell Period:	12.7 secs
Surf Height	1.3 ft

24 Hour Observation

Date (Month/Day)	Time (GMT)	Sea Height [>5 secs] (ft)	Primary Swell		Secondary Swell		Tertiary Swell		Estimated Surf Height (ft)	Primary Period (secs)
Date (Month/Day)	Time (GMT)	Sea Height [>5 secs] (ft)	Height (ft)	Period (secs)	Height (ft)	Period (secs)	Height (ft)	Period (secs)	Estimated Surf Height (ft)	Primary Period (secs)
04/21	04:00:00	3.1	1.4 se	12.7 secs	1.8 se	8.3 secs	0.3 se	16.7secs	1.3 -1.5	12.7
04/21	03:00:00	3.0	1.3 se	12.4 secs	0.9 se	16.1 secs	1.7 se	8.2secs	1.2 -1.4	12.4
04/21	02:00:00	3.4	1.2 se	14.4 secs	2.0 se	8.3 secs	1.4 se	11.3secs	1.3 -1.5	14.4
04/21	01:00:00	2.8	1.2 se	12.5 secs	1.6 se	8.3 secs	0.4 se	16.7secs	1.1 -1.3	12.5
04/21	00:00:00	2.9	1.3 se	11.2 secs	1.6 se	7.8 secs	0.3 se	14.3secs	1.1 -1.2	11.2
04/20	23:00:00	3.1	1.3 se	12.4 secs	1.6 se	8.3 secs	0.8 se	15.7secs	1.2 -1.4	12.4
04/20	22:00:00	3.1	1.9 se	7.8 secs	1.1 se	12.4 secs	0.3 se	16.7secs	1.1 -1.3	7.8
04/20	21:00:00	3.1	1.4 se	11.1 secs	1.0 se	14.1 secs	1.7 se	7.7secs	1.2 -1.3	11.1
04/20	20:00:00	3.2	1.2 se	14.5 secs	1.3 se	11.2 secs	1.8 se	7.7secs	1.3 -1.5	14.5
04/20	19:00:00	3.1	1.6 se	10.1 secs	0.9 se	14.2 secs	1.6 se	6.7secs	1.2 -1.3	10.1
04/20	18:00:00	3.4	1.1 se	14.5 secs	1.9 se	7.7 secs	1.2 se	11.1secs	1.2 -1.4	14.5
04/20	17:00:00	3.3	1.2 se	12.6 secs	1.5 se	9.1 secs	1.7 se	5.9secs	1.1 -1.3	12.6
04/20	16:00:00	3.2	1.5 se	11.2 secs	1.9 se	7.1 secs	0.2 se	14.3secs	1.3 -1.5	11.2
04/20	15:00:00	3.3	1.5 se	11.1 secs	1.8 se	7.1 secs	0.6 se	15.3secs	1.3 -1.5	11.1
04/20	14:00:00	3.2	1.6 se	12.2 secs	1.8 se	7.2 secs	0.7 se	15.4secs	1.4 -1.6	12.2
04/20	13:00:00	2.9	1.2 se	12.4 secs	1.3 se	9.1 secs	1.7 se	5.9secs	1.1 -1.2	12.4
04/20	12:00:00	3.3	1.8 se	11.2 secs	1.6 se	7.6 secs	0.6 se	15.6secs	1.5 -1.7	11.2
04/20	11:00:00	3.2	1.4 se	12.3 secs	1.9 se	7.6 secs	0.7 se	15.4secs	1.3 -1.4	12.3
04/20	10:00:00	2.9	1.4 se	11.2 secs	1.6 se	7.7 secs	0.7 se	15.9secs	1.2 -1.3	11.2
04/20	09:00:00	3.1	1.6 se	11.2 secs	1.8 se	7.7 secs	0.6 se	16.1secs	1.3 -1.5	11.2
04/20	08:00:00	3.2	1.5 se	11.2 secs	1.6 se	7.7 secs	0.7 se	15.4secs	1.3 -1.5	11.2
04/20	07:00:00	3.0	1.3 se	11.3 secs	1.7 se	7.7 secs	0.5 se	15.3secs	1.1 -1.2	11.3
04/20	06:00:00	3.3	1.6 se	12.3 secs	1.5 se	9.1 secs	1.6 se	5.9secs	1.5 -1.7	12.3
04/20	05:00:00	3.2	1.4 se	12.2 secs	1.9 se	7.6 secs	0.6 se	15.4secs	1.3 -1.4	12.2

Surf Height Scale
Size Scale (ft)
>1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-12 12-13 13-14 14-15 15-20 20-25 25-30 30-35 35-40 40-45 45+

Swell Period Scal
Period Scale (secs)
6.3 6.7 7.1 7.7 8.3 9.1 10 11.1 12.5 14.3 16.7 20 25 33.3

Current Weather Conditions
Buoy 51004
04:50:00 (GMT) on 04/21
Combined Sea Height:	4.6 ft
Dominant Period:	8.0 secs
Wind Speed:	11.7 kts
Wind Gust:	13.7 kts
Wind Direction:	060 degrees
Barometric Pressure:	1014.0 mbs
Air Temperature:	77.5 degrees
Water Temperature:	78.6 degrees

24 Hour Weather Observation

Date (Month/Day)	Time (GMT)	Combined Sea Height (ft)	Dominant Period (secs)	Wind Speed (kts)	Gust (kts)	Wind Direction (degrees)	Barometric Pressure (mbs)	Air Temperature (F)	Water Temperature (F)
04/21	04:50:00	4.6	8.0	11.7	13.7	060	1014.0	77.5	78.6
04/21	03:50:00	4.9	0.0	11.7	13.7	070	1013.1	32.0	78.6
04/21	02:50:00	4.6	8.0	11.7	13.7	070	1012.6	77.4	78.8
04/21	01:50:00	4.6	7.0	11.7	13.7	070	1012.8	77.4	78.8
04/21	00:50:00	4.9	8.0	11.7	13.7	070	1013.1	77.4	78.8
04/20	23:50:00	4.9	0.0	11.7	15.6	080	1013.2	77.4	78.8
04/20	22:50:00	4.9	8.0	13.7	15.6	080	1013.7	77.2	78.8
04/20	21:50:00	5.2	7.0	11.7	13.7	060	1014.7	77.0	32.0
04/20	20:50:00	5.2	8.0	11.7	15.6	080	1014.9	77.2	78.4
04/20	19:50:00	5.6	7.0	13.7	15.6	080	1015.0	77.0	78.4
04/20	18:50:00	5.2	8.0	13.7	17.6	070	1014.9	76.6	32.0
04/20	17:50:00	5.2	7.0	13.7	15.6	040	1014.7	75.9	78.4
04/20	16:50:00	5.2	7.0	13.7	17.6	050	1014.2	76.1	78.4
04/20	15:50:00	5.6	7.0	13.7	17.6	050	1013.6	75.9	78.4
04/20	14:50:00	5.2	8.0	13.7	15.6	060	1013.2	75.9	78.4
04/20	13:50:00	4.9	7.0	13.7	15.6	080	1012.9	76.3	78.4
04/20	12:50:00	4.9	7.0	15.6	19.5	070	1013.1	75.6	32.0
04/20	11:50:00	5.2	8.0	15.6	17.6	060	1013.9	76.3	78.4
04/20	10:50:00	4.9	8.0	15.6	17.6	060	1014.4	76.3	78.6
04/20	09:50:00	4.6	8.0	15.6	19.5	060	1014.8	76.8	78.6
04/20	08:50:00	5.2	8.0	15.6	17.6	060	1015.3	76.5	32.0
04/20	07:50:00	5.2	0.0	15.6	17.6	060	1016.2	77.2	78.8
04/20	06:50:00	5.2	8.0	13.7	17.6	050	1015.3	77.2	79.0
04/20	05:50:00	4.9	7.0	15.6	17.6	050	1014.6	77.0	79.0

000031151 ___0.031976

Contact | About | Disclaimer | Privacy
Advertise/Content | Links