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Station IOSN3 - Isle of Shoals, NH Image indicating link to RSS feed of recent meteorological observations for station IOSN3

Owned and maintained by National Data Buoy Center
C-MAN Station
Sutron XPERT payload
42.967 N 70.623 W (42°58'2" N 70°37'24" W)

Site elevation: 13.1 m above mean sea level
Air temp height: 11.9 m above site elevation
Anemometer height: 19.2 m above site elevation
Barometer elevation: 18.9 m above mean sea level

Caution: Right whales may be active in northeast waters year-round. NOAA may establish temporary Dynamic Management Areas (DMAs) to protect aggregations of right whales. Mariners are requested to transit DMAs at 10 knots or less when consistent with safe navigation. For information on currently active DMAs, go to: http://www.nmfs.noaa.gov/pr/shipstrike

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Important Notice to Mariners

Search And Rescue (SAR) Data

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Station IOSN3

Conditions at IOSN3 as of
(6:00 am EDT)
1000 GMT on 03/20/2025:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wind Direction Wind Direction (WDIR):ESE ( 110 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 4 kts
5-day plot - Wind Gust Wind Gust (GST): 5 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.96 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY):-0.02 in ( Falling )
5-day plot - Air Temperature Air Temperature (ATMP): 39.2 °F
5-day plot - Dew Point Dew Point (DEWP): 39.0 °F
5-day plot - Wind Chill Wind Chill (CHILL): 35.8 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 4 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 4 kts
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Continuous Winds
TIME
(EDT)		 5-day plot - Wind Direction WDIR 5-day plot - Wind Speed WSPD
6:00 amESE ( 109 deg ) 4 kts
5:50 amE ( 101 deg ) 4 kts
5:40 amE ( 97 deg ) 5 kts
5:30 amESE ( 102 deg ) 4 kts
5:20 amESE ( 102 deg ) 4 kts
5:10 amESE ( 103 deg ) 6 kts
      
Peak gust during the measurement hour
TIME
(EDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
5:06 amESE ( 110 deg ) 7 kts
Previous observations
TIME
(EDT)		 5-day plot - Wind Direction
WDIR
 		 5-day plot - Wind Speed
WSPD
kts		 5-day plot - Wind Gust
GST
kts		 5-day plot - Wave Height
WVHT
ft		 5-day plot - Dominant Wave Period
DPD
sec		 5-day plot - Average Wave Period
APD
sec		 5-day plot - Mean Wave Direction
MWD
 		 5-day plot - Atmospheric Pressure
PRES
in		 5-day plot - Pressure Tendency
PTDY
in		 5-day plot - Air Temperature
ATMP
°F		 5-day plot - Water Temperature
WTMP
°F		 5-day plot - Dew Point
DEWP
°F		 5-day plot - Salinity
SAL
psu		 5-day plot - Visibility
VIS
nmi		 5-day plot - Tide (above MLLW)
TIDE
ft
2025-03-20 05:00 am E 5 5----29.97-0.06 39.0- 38.8---
2025-03-20 04:00 am E 8 9----29.98-0.05 39.2- 39.0---
2025-03-20 03:00 am E 7 7----29.99-0.05 39.2- 39.2---
2025-03-20 02:00 am N 4 4----30.03-0.03 38.5- 38.5---
2025-03-20 01:00 amENE 3 4----30.03-0.03 38.3- 38.3---
2025-03-20 12:00 amESE 7 8----30.04-0.03 38.1- 38.1---
2025-03-19 11:00 pm E 7 7----30.06-0.01 37.4- 37.4---
2025-03-19 10:00 pmESE 8 9----30.06-0.02 38.3- 38.3---
2025-03-19 09:00 pm SE 7 9----30.07-0.01 38.3- 38.3---
2025-03-19 08:00 pmESE 9 10----30.07-0.01 38.3- 38.3---
2025-03-19 07:00 pmESE 10 11----30.08+0.00 37.8- 37.8---
2025-03-19 06:00 pm E 10 11----30.08-0.01 36.7- 36.7---
2025-03-19 05:00 pm E 9 11----30.08-0.03 36.5- 36.5---
2025-03-19 04:00 pmENE 11 12----30.08-0.04 36.1- 36.1---
2025-03-19 03:00 pm E 10 11----30.09-0.05 35.8- 35.8---
2025-03-19 02:00 pmENE 10 10----30.10-0.05 36.5- 36.5---
2025-03-19 01:00 pmENE 7 10----30.13-0.04 37.2- 35.2---
2025-03-19 12:00 pm NE 9 10----30.14-0.01 37.8- 33.1---
2025-03-19 11:00 am NE 10 11----30.16+0.03 38.1- 32.4---
2025-03-19 10:00 amNNE 11 12----30.16+0.04 37.6- 29.8---
2025-03-19 09:00 am N 9 11----30.15+0.04 37.6- 29.3---
2025-03-19 08:00 am N 10 11----30.13+0.04 37.8- 30.9---
2025-03-19 07:00 am N 9 10----30.13+0.04 37.6- 31.8---
2025-03-19 06:00 amNNE 9 10----30.11+0.02 37.9- 32.4---