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Hurricane Symbol Storm Special! View the latest observations near East Pacific Tropical Storm Hilda and East Pacific Tropical Depression Nine-E.

Station 44005 (LLNR 820) - GULF OF MAINE - 78 NM East of Portsmouth, NH Image indicating link to RSS feed of recent meteorological observations for station 44005

Owned and maintained by National Data Buoy Center
3-meter discus buoy
AMPS payload
43.201 N 69.127 W (43°12'2" N 69°7'37" W)

Site elevation: sea level
Air temp height: 4.4 m above site elevation
Anemometer height: 4.9 m above site elevation
Barometer elevation: 0.3 m above mean sea level
Sea temp depth: 0.6 m below water line
Water depth: 176.8 m
Watch circle radius: 306 yards

Latest NWS Marine Forecast 1 and Latest NWS Marine Forecast 2

Important Notice to Mariners

Search And Rescue (SAR) Data

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station 44005

Regional HF Radar Surface Current Observations

Station 44005
Large icon indicates selected station.
yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
     (24 hours for tsunami stations)

Conditions at 44005 as of
(5:50 am EDT)
0950 GMT on 07/31/2021:
     

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): WNW ( 300 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 13.6 kts
5-day plot - Wind Gust Wind Gust (GST): 17.5 kts
5-day plot - Wave Height Wave Height (WVHT): 3.3 ft
5-day plot - Dominant Wave Period Dominant Wave Period (DPD): 5 sec
5-day plot - Average Period Average Period (APD): 4.4 sec
5-day plot - Mean Wave Direction Mean Wave Direction (MWD): WNW ( 298 deg true )
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES): 29.84 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY): +0.03 in ( Rising )
5-day plot - Air Temperature Air Temperature (ATMP): 61.3 °F
5-day plot - Water Temperature Water Temperature (WTMP): 61.0 °F
5-day plot - Dew Point Dew Point (DEWP): 50.0 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 15.5 kts
5-day plot - Wind Speed at 10 Meters Wind Speed at 20 meters (WSPD20M): 15.5 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
5:50 amWNW ( 297 deg ) 14.2 kts
5:40 amWNW ( 299 deg ) 13.0 kts
5:30 amWNW ( 301 deg ) 14.2 kts
5:20 amNW ( 308 deg ) 13.8 kts
5:10 amNW ( 316 deg ) 14.2 kts
5:00 amNW ( 319 deg ) 15.2 kts
  
Supplemental Measurements
Highest 1-minute Wind Speed
Time (EDT)5-day plot - 1-Minute Wind Speed WSPD 5-day plot - 1-Minute Wind Direction WDIR
4:59 am 15.5 kts NW ( 320 deg true )
Peak gust during the measurement hour
TIME
(EDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
4:50 amNW ( 320 deg ) 17.5 kts
Previous observations
5-day plot - Wind Direction 5-day plot - Wind Speed 5-day plot - Wind Gust 5-day plot - Wave Height 5-day plot - Dominant Wave Period 5-day plot - Average Period 5-day plot - Mean Wave Direction 5-day plot - Atmospheric Pressure 5-day plot - Pressure Tendency 5-day plot - Air Temperature 5-day plot - Water Temperature 5-day plot - Dew Point 5-day plot - Salinity 5-day plot - Visibility 5-day plot - Tide (above MLLW)
MM DD TIME
(EDT)		 WDIR WSPD
kts		 GST
kts		 WVHT
ft		 DPD
sec		 APD
sec		 MWD PRES
in		 PTDY
in		 ATMP
°F		 WTMP
°F		 DEWP
°F		 SAL
psu		 VIS
nmi		 TIDE
ft
0731 4:50 am NW 15.5 17.5 4.6 54.5 NW29.83+0.02 61.0 61.3 49.3---
0731 3:50 amNNW 19.4 23.3 4.3 64.4 NW29.81+0.00 61.5 61.5 48.7---
0731 2:50 am NW 19.4 25.3 4.6 54.5WNW29.81+0.01 62.4 61.9 49.5---
0731 1:50 am NW 19.4 23.3 4.9 54.6 NW29.81+0.01 63.3 62.6 49.1---
073112:50 am NW 23.3 27.2 4.6 54.3 NW29.81+0.03 63.9 63.5 48.9---
073011:50 pm NW 23.3 25.3 4.9 54.5 NW29.80+0.04 64.4 64.2 52.2---
073010:50 pm NW 21.4 27.2 4.6 74.4 S29.80+0.07 65.3 64.6 54.1---
0730 9:50 pmNNW 19.4 23.3 3.6 74.1SSW29.78+0.08 66.6 64.8 56.1---
0730 8:50 pmWNW 13.6 15.5 3.0 74.3SSW29.76+0.07 67.3 64.9 58.5---
0730 7:50 pmWNW 13.6 17.5 2.3 34.0WNW29.72+0.05 67.6 65.1 58.3---
0730 6:50 pm W 13.6 15.5 2.6 33.8WNW29.70+0.04 66.7 64.9 60.4---
0730 5:50 pm W 13.6 15.5 2.3 63.7SSE29.68+0.02 65.8 64.9 62.1---
0730 4:50 pm W 13.6 15.5 2.0 63.9SSE29.67+0.00 66.4 65.1 62.2---
0730 3:50 pm W 13.6 15.5 2.3 64.0SSE29.66-0.01 66.4 65.3 62.2---
0730 2:50 pm W 11.7 15.5 2.3 64.2SSE29.66+0.00 65.5 65.1 62.2---
0730 1:50 pm W 9.7 11.7 2.6 74.3SSE29.67+0.03 65.5 65.1 62.4---
073012:50 pmWNW 7.8 9.7 3.3 64.3 S29.68+0.06 63.5 64.9 61.2---
073011:50 amNNW 11.7 15.5 3.9 64.3 S29.66+0.07 62.1 64.6 60.1---
073010:50 am N 15.5 19.4 4.3 74.4 S29.64+0.06 61.7 64.6 59.7---
0730 9:50 amNNW 19.4 21.4 4.3 74.4 S29.62+0.03 61.0 64.4 60.8---
0730 8:50 amNNW 17.5 21.4 5.2 74.7SSW29.59+0.01 64.0 64.2 63.0---
0730 7:50 am NW 15.5 17.5 5.2 75.2 S29.58+0.00 64.4 64.0 63.5---
0730 6:50 am W 11.7 15.5 6.2 75.5SSW29.59-0.03 64.4 64.0 63.5---
0730 5:50 am W 11.7 13.6 6.2 75.3 S29.58-0.06 65.1 64.0 63.5---
Detailed Wave Summary
for 44005 as of (6:00 am EDT)
1000 GMT on 07/31/2021:

These wave data are displayed in rounded times.

     

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 - Significant Wave HeightSignificant Wave Height (WVHT): 3.3 ft
5-day plot - Swell HeightSwell Height (SwH): 1.3 ft
5-day plot - Swell PeriodSwell Period (SwP): 8.3 sec
5-day plot - Swell DirectionSwell Direction (SwD):SSE
5-day plot - Wind Wave HeightWind Wave Height (WWH): 3.0 ft
5-day plot - Wind Wave PeriodWind Wave Period (WWP): 5.3 sec
5-day plot - Wind Wave DirectionWind Wave Direction (WWD):WNW
5-day plot - Wave SteepnessWave Steepness (STEEPNESS):VERY_STEEP
5-day plot - Average Wave PeriodAverage Wave Period (APD): 4.4 sec
Previous observations
5-day plot - Significant Wave Height 5-day plot - Swell Height 5-day plot - Swell Period 5-day plot - Swell Direction 5-day plot - Wind Wave Height 5-day plot - Wind Wave Period 5-day plot - Wind Wave Direction 5-day plot - Wave Steepness 5-day plot - Average Wave Period
MM DD TIME
(EDT)		 WVHT
ft		 SwH
ft		 SwP
sec		 SwD WWH
ft		 WWP
sec		 WWD STEEPNESS APD
sec
0731 5:00 am 4.6 1.3 7.7 S 4.3 5.3 NWVERY_STEEP 4.5
0731 4:00 am 4.3 1.6 7.7 S 3.9 5.6 NWVERY_STEEP 4.4
0731 3:00 am 4.6 1.0 10.8WNW 4.6 5.3 WNWVERY_STEEP 4.5
0731 2:00 am 4.9 1.3 10.8 E 4.9 4.8 NWVERY_STEEP 4.6
0731 1:00 am 4.6 1.3 7.7 S 4.3 5.0 NWVERY_STEEP 4.3
073112:00 am 4.9 0.0-- 4.9 4.8 NWVERY_STEEP 4.5
073011:00 pm 4.6 2.6 7.1 S 3.9 4.5 NW STEEP 4.4
073010:00 pm 3.6 2.3 6.7SSW 3.0 3.8 NW STEEP 4.1
0730 9:00 pm 3.0 2.0 7.1SSW 2.3 5.6 S AVERAGE 4.3
0730 8:00 pm 2.3 1.3 8.3 S 2.0 3.3 WNW N/A 4.0
0730 7:00 pm 2.6 1.0 8.3SSE 2.3 3.4 WNW N/A 3.8
0730 6:00 pm 2.3 1.3 6.2SSE 2.0 5.6 SSE N/A 3.7
0730 5:00 pm 2.0 1.0 7.7SSE 2.0 5.6 SSE N/A 3.9
0730 4:00 pm 2.3 1.0 8.3 SE 2.0 5.9 SSE N/A 4.0
0730 3:00 pm 2.3 1.3 11.4SSW 2.0 5.9 SSE N/A 4.2
0730 2:00 pm 2.6 2.0 6.7SSE 1.6 3.6 NNW AVERAGE 4.3
0730 1:00 pm 3.3 2.6 6.2 S 2.0 3.8 NNW STEEP 4.3
073012:00 pm 3.9 2.0 6.2 S 3.3 4.3 WNW STEEP 4.3
073011:00 am 4.3 1.3 9.1ESE 3.9 6.7 S STEEP 4.4
073010:00 am 4.3 2.3 6.7 S 3.6 5.6 S STEEP 4.4
0730 9:00 am 5.2 3.9 7.1SSW 3.6 4.8 S STEEP 4.7
0730 8:00 am 5.2 1.6 10.0SSW 4.9 7.1 S STEEP 5.2
0730 7:00 am 6.2 5.2 6.7SSW 3.3 5.3 SSW STEEP 5.5
0730 6:00 am 6.2 4.9 6.7 S 3.6 4.5 S STEEP 5.3

Plot of wave energy versus frequency (and period)

Description of Measurements

Links which are specific to this station are listed below:

Real Time Data in tabular form for the last forty-five days.

Historical Data & Climatic Summaries for quality controlled data for the current month, previous months, and previous years.

The weekly status report and the weekly maintenance report also provide valuable station information.

Note that the payload types and the station locations occasionally change.
Please refer to the NDBC data inventory for the data history of each station.