Station List

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Station MRKA2 - Middle Rock Light, AK Image indicating link to RSS feed of recent meteorological observations for station MRKA2

Owned and maintained by National Data Buoy Center
C-MAN Station
Sutron XPERT payload
61.081 N 146.653 W (61°4'52" N 146°39'11" W)

Site elevation: 0 m above mean sea level
Air temp height: 15.4 m above site elevation
Anemometer height: 15.9 m above site elevation
Barometer elevation: 10.9 m above mean sea level

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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 MRKA2

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Station MRKA2

Conditions at MRKA2 as of
(9:30 pm AKDT on 05/14/2025)
0530 GMT on 05/15/2025:
     

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): E ( 90 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 2 kts
5-day plot - Wind Gust Wind Gust (GST): 3 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.84 in
5-day plot - Air Temperature Air Temperature (ATMP): 45.0 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 2 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 2 kts
5-day plot - Wind Speed, Wind Gust and Atmospheric Pressure Combined plot of Wind Speed, Gust, and Air Pressure
Continuous Winds
TIME
(AKDT)		 5-day plot - Wind Direction WDIR 5-day plot - Wind Speed WSPD
9:30 pmESE ( 111 deg ) 5 kts
9:20 pmESE ( 114 deg ) 6 kts
9:10 pmESE ( 117 deg ) 5 kts
9:00 pmESE ( 111 deg ) 5 kts
8:50 pmESE ( 105 deg ) 4 kts
8:40 pmESE ( 112 deg ) 4 kts
      
Peak gust during the measurement hour
TIME
(AKDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
8:54 pmESE ( 110 deg ) 7 kts
Previous observations
TIME
(AKDT)		 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
2025-05-14 09:00 pmESE 5 6----29.85-0.04 45.7-----
2025-05-14 08:30 pmESE 5 5----29.85- 46.4-----
2025-05-14 08:00 pm E 4 4----29.86-0.04 46.8-----
2025-05-14 07:30 pm NE 2 3----29.86- 46.9-----
2025-05-14 07:00 pmENE 6 7----29.87-0.04 47.1-----
2025-05-14 06:30 pm- 0 1----29.87- 47.1-----
2025-05-14 06:00 pm N 2 3----29.88-0.05 47.3-----
2025-05-14 05:30 pmSSW 3 4----29.89- 46.8-----
2025-05-14 05:00 pmSSW 5 5----29.89-0.05 46.8-----
2025-05-14 04:30 pmSSW 8 9----29.90- 46.0-----
2025-05-14 04:00 pmSSW 10 10----29.91-0.04 46.0-----
2025-05-14 03:30 pmSSW 12 13----29.92- 46.4-----
2025-05-14 03:00 pm- 0 0----29.93-0.03 48.4-----
2025-05-14 02:30 pmSSW 5 6----29.94- 47.1-----
2025-05-14 02:00 pmWSW 6 6----29.95-0.03 46.2-----
2025-05-14 01:30 pm S 2 3----29.95- 47.1-----
2025-05-14 01:00 pmSSW 5 6----29.95-0.03 47.5-----
2025-05-14 12:30 pmSSW 5 7----29.96- 47.1-----
2025-05-14 12:00 pmSSW 4 4----29.96-0.04 48.6-----
2025-05-14 11:30 amSSW 7 7----29.96- 46.2-----
2025-05-14 11:00 amSSW 7 8----29.97-0.02 47.5-----
2025-05-14 10:30 amSSW 5 7----29.98- 46.9-----
2025-05-14 10:00 amSSW 5 6----29.98-0.02 45.7-----
2025-05-14 09:30 am NE 1 1----29.99- 45.3-----
2025-05-14 09:00 amSSW 1 2----29.99-0.01 46.2-----
2025-05-14 08:30 am- 0 0----29.99- 48.0-----
2025-05-14 08:00 am SW 2 3----29.99-0.02 45.5-----
2025-05-14 07:30 amSSW 6 9----30.00- 44.6-----
2025-05-14 07:00 amSSW 4 6----30.00-0.01 44.1-----
2025-05-14 06:30 am- 0 2----30.00- 43.7-----
2025-05-14 06:00 am SW 8 9----30.00-0.01 43.2-----
2025-05-14 05:30 amWSW 8 8----30.01- 43.0-----
2025-05-14 05:00 am W 5 6----30.01+0.00 43.2-----
2025-05-14 04:30 amWSW 4 6----30.01- 44.1-----
2025-05-14 04:00 am S 8 9----30.01+0.00 43.9-----
2025-05-14 03:30 amSSW 8 9----30.02- 44.6-----
2025-05-14 03:00 am SW 11 12----30.02+0.01 44.8-----
2025-05-14 02:30 am SW 8 10----30.02- 44.8-----
2025-05-14 02:00 am SW 10 11----30.01+0.01 45.5-----
2025-05-14 01:30 amSSW 10 12----30.01- 45.1-----
2025-05-14 01:00 amSSW 9 10----30.01+0.02 45.7-----
2025-05-14 12:30 amSSW 7 10----30.01- 45.7-----
2025-05-14 12:00 amSSW 11 12----30.01+0.02 45.9-----
2025-05-13 11:30 pmSSW 10 12----30.01- 45.9-----
2025-05-13 11:00 pmSSW 10 11----30.00+0.01 46.4-----
2025-05-13 10:30 pmSSW 8 9----30.00- 46.6-----
2025-05-13 10:00 pmSSW 11 11----30.00+0.01 46.6-----
2025-05-13 09:30 pmSSW 10 10----29.99- 46.9-----
2025-05-13 09:00 pmSSW 7 7----29.99+0.00 47.7-----