Station List

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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Station MRKA2

Conditions at MRKA2 as of
(6:30 pm AKDT on 04/11/2026)
0230 GMT on 04/12/2026:
     

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): SW ( 220 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 4 kts
5-day plot - Wind Gust Wind Gust (GST): 4 kts
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES):29.87 in
5-day plot - Air Temperature Air Temperature (ATMP): 42.4 °F
5-day plot - Wind Chill Wind Chill (CHILL): 39.6 °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
(AKDT)		 5-day plot - Wind Direction WDIR 5-day plot - Wind Speed WSPD
6:30 pmSW ( 215 deg ) 8 kts
6:20 pmSW ( 216 deg ) 9 kts
6:10 pmSW ( 216 deg ) 8 kts
6:00 pmSW ( 215 deg ) 8 kts
5:50 pmSW ( 217 deg ) 5 kts
5:40 pmSW ( 216 deg ) 7 kts
      
Peak gust during the measurement hour
TIME
(AKDT)		 5-day plot - Gust Direction GDR 5-day plot - Gust Speed GST
5:43 pmSW ( 220 deg ) 10 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
2026-04-11 06:00 pm SW 8 9----29.89-0.04 41.5-----
2026-04-11 05:30 pm SW 7 7----29.89- 42.4-----
2026-04-11 05:00 pmSSW 3 4----29.90-0.06 42.3-----
2026-04-11 04:30 pm NE 5 5----29.91- 45.9-----
2026-04-11 04:00 pm NE 6 6----29.91-0.06 45.5-----
2026-04-11 03:30 pm NE 6 7----29.92- 45.3-----
2026-04-11 03:00 pmENE 6 7----29.93-0.05 44.4-----
2026-04-11 02:30 pm NE 7 8----29.94- 44.6-----
2026-04-11 02:00 pm NE 6 6----29.96-0.04 44.1-----
2026-04-11 01:30 pm NE 6 7----29.96- 44.6-----
2026-04-11 01:00 pm NE 6 7----29.98-0.02 43.9-----
2026-04-11 12:30 pm NE 5 6----29.98- 44.1-----
2026-04-11 12:00 pmENE 7 8----29.98-0.02 42.8-----
2026-04-11 11:30 am NE 8 9----29.99- 42.3-----
2026-04-11 11:00 am NE 8 8----29.99-0.02 41.2-----
2026-04-11 10:30 am NE 8 9----29.99- 41.2-----
2026-04-11 10:00 am NE 7 7----30.00-0.04 38.5-----
2026-04-11 09:30 am NE 8 8----30.00- 38.5-----
2026-04-11 09:00 amNNE 9 10----30.00-0.05 37.0-----
2026-04-11 08:30 am NE 7 8----30.01- 37.8-----
2026-04-11 08:00 am NE 10 11----30.01-0.05 36.3-----
2026-04-11 07:30 am NE 9 10----30.03- 35.4-----
2026-04-11 07:00 am NE 9 10----30.04-0.04 35.4-----
2026-04-11 06:30 amNNE 10 11----30.05- 35.8-----
2026-04-11 06:00 amNNE 9 10----30.05-0.04 35.8-----
2026-04-11 05:30 am N 9 10----30.06- 35.4-----
2026-04-11 05:00 amNNE 8 9----30.06-0.04 35.8-----
2026-04-11 04:30 amNNE 8 9----30.07- 36.0-----
2026-04-11 04:00 amNNE 8 8----30.08-0.02 36.1-----
2026-04-11 03:30 am NE 8 9----30.08- 36.5-----
2026-04-11 03:00 amNNE 9 9----30.09+0.00 36.7-----
2026-04-11 02:30 amNNE 6 6----30.10- 36.1-----
2026-04-11 02:00 am NE 2 2----30.10+0.00 34.7-----
2026-04-11 01:30 am S 3 3----30.10- 35.2-----
2026-04-11 01:00 amSSW 2 3----30.10+0.00 35.2-----
2026-04-11 12:30 amSSW 4 4----30.09- 36.1-----
2026-04-11 12:00 amESE 4 5----30.10+0.00 37.6-----
2026-04-10 11:30 pmENE 6 6----30.09- 37.2-----
2026-04-10 11:00 pmENE 4 5----30.09-0.01 37.4-----
2026-04-10 10:30 pm NE 6 7----30.09- 39.0-----
2026-04-10 10:00 pm NE 6 8----30.10-0.01 38.7-----
2026-04-10 09:30 pmENE 5 6----30.10- 38.5-----
2026-04-10 09:00 pmENE 6 7----30.10-0.01 39.2-----
2026-04-10 08:30 pmENE 6 7----30.10- 39.7-----
2026-04-10 08:00 pmNNE 3 3----30.11-0.02 39.9-----
2026-04-10 07:30 pmENE 6 7----30.10- 39.9-----
2026-04-10 07:00 pm E 6 6----30.11-0.01 39.9-----
2026-04-10 06:30 pm NE 6 7----30.11- 40.6-----
2026-04-10 06:00 pm E 4 5----30.12+0.00 40.6-----