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
61.082 N 146.662 W (61°4'54" N 146°39'42" 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
(1:30 pm AKDT)
2130 GMT on 04/23/2025:
     

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):NNE ( 30 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 6 kts
5-day plot - Wind Gust Wind Gust (GST): 7 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.75 in
5-day plot - Air Temperature Air Temperature (ATMP): 42.4 °F
5-day plot - Wind Chill Wind Chill (CHILL): 38.1 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 6 kts
5-day plot - Wind Speed at 20 Meters Wind Speed at 20 meters (WSPD20M): 6 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
1:30 pmNE ( 47 deg ) 7 kts
1:20 pmNE ( 43 deg ) 7 kts
1:10 pmNE ( 44 deg ) 7 kts
1:00 pmNE ( 47 deg ) 7 kts
12:50 pmNNE ( 16 deg ) 7 kts
12:40 pmNE ( 37 deg ) 7 kts
      
Peak gust during the measurement hour
TIME
(AKDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
1:24 pmNE ( 40 deg ) 9 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
2025-04-23 01:00 pm NE 7 8----29.75-0.03 42.6-----
2025-04-23 12:30 pm NE 8 9----29.75- 41.0-----
2025-04-23 12:00 pm NE 8 9----29.75-0.05 40.6-----
2025-04-23 11:30 amNNE 9 9----29.76- 40.1-----
2025-04-23 11:00 am NE 7 8----29.77-0.05 39.7-----
2025-04-23 10:30 amNNE 7 7----29.77- 39.7-----
2025-04-23 10:00 amNNE 8 9----29.78-0.06 39.6-----
2025-04-23 09:30 amENE 9 10----29.79- 39.0-----
2025-04-23 09:00 am NE 8 9----29.80-0.06 38.8-----
2025-04-23 08:30 amNNE 8 8----29.81- 38.7-----
2025-04-23 08:00 am NE 7 8----29.82-0.06 38.7-----
2025-04-23 07:30 amNNE 7 8----29.83- 38.5-----
2025-04-23 07:00 am NE 7 9----29.84-0.05 38.5-----
2025-04-23 06:30 am NE 8 8----29.85- 38.3-----
2025-04-23 06:00 am NE 8 9----29.86-0.05 38.7-----
2025-04-23 05:30 am NE 6 6----29.87- 38.7-----
2025-04-23 05:00 amENE 6 6----29.88-0.05 39.0-----
2025-04-23 04:30 am NE 6 7----29.89- 39.2-----
2025-04-23 04:00 amNNE 6 6----29.89-0.04 39.4-----
2025-04-23 03:30 amENE 5 5----29.90- 39.2-----
2025-04-23 03:00 amNNE 5 6----29.91-0.03 39.7-----
2025-04-23 02:30 am NE 5 6----29.92- 39.7-----
2025-04-23 02:00 am NE 5 6----29.93-0.02 39.9-----
2025-04-23 01:30 am NE 5 5----29.93- 40.1-----
2025-04-23 01:00 am N 5 6----29.94-0.01 40.1-----
2025-04-23 12:30 amENE 6 6----29.94- 39.6-----
2025-04-23 12:00 am NE 5 5----29.94+0.00 40.3-----
2025-04-22 11:30 pmENE 4 5----29.95- 39.4-----
2025-04-22 11:00 pm NE 3 4----29.95+0.00 39.7-----
2025-04-22 10:30 pmENE 4 5----29.95- 39.6-----
2025-04-22 10:00 pmENE 4 4----29.95+0.00 39.6-----
2025-04-22 09:30 pm E 4 4----29.95- 39.7-----
2025-04-22 09:00 pm N 4 5----29.95-0.01 40.8-----
2025-04-22 08:30 pmNNE 3 4----29.95- 41.2-----
2025-04-22 08:00 pm NE 5 5----29.94-0.02 41.2-----
2025-04-22 07:30 pm NE 6 6----29.94- 41.2-----
2025-04-22 07:00 pm NE 5 6----29.95-0.01 41.4-----
2025-04-22 06:30 pm N 2 3----29.96- 41.2-----
2025-04-22 06:00 pmENE 6 6----29.96-0.01 41.0-----
2025-04-22 05:30 pmENE 5 6----29.96- 40.6-----
2025-04-22 05:00 pm NE 4 5----29.96+0.00 40.6-----
2025-04-22 04:30 pmENE 3 3----29.97- 40.5-----
2025-04-22 04:00 pm NE 4 4----29.97+0.00 40.3-----
2025-04-22 03:30 pmENE 5 5----29.97- 40.1-----
2025-04-22 03:00 pmENE 5 5----29.97+0.00 39.7-----
2025-04-22 02:30 pm NE 6 6----29.96- 39.4-----
2025-04-22 02:00 pmENE 6 6----29.97+0.00 39.0-----
2025-04-22 01:30 pmENE 6 6----29.97- 38.7-----
2025-04-22 01:00 pmENE 5 6----29.97+0.01 37.9-----