TONGASS NARROWS (Marine Chart : US17430_P2748)

TONGASS NARROWS marine chart is available as part of iBoating : USA Marine & Fishing App(now supported on multiple platforms including Android, iPhone/iPad, MacBook, and Windows(tablet and phone)/PC based chartplotter.).  

 When you purchase our Nautical Charts App,  you get all the great marine chart app features like fishing spots, along with TONGASS NARROWS marine chart. The Marine Navigation App provides advanced features of a Marine Chartplotter including adjusting water level offset and custom depth shading. Fishing spots and depth contours layers are available in most Lake maps. Nautical navigation features include advanced instrumentation to gather wind speed direction, water temperature, water depth, and accurate GPS with AIS receivers(using NMEA over TCP/UDP). Autopilot support can be enabled during ‘Goto WayPoint’ and ‘Route Assistance’. Now Automatic Slip to Slip Boat routing based Boat's Draft (draught) is available for water mapped by this chart.


Have more questions about the Nautical Chart App? Ask us.



Min Longitude-131.80
Min Latitude55.33
Max Longitude-131.63
Max Latitude55.42
Edition Label 112
Edition Label 21
Edition Label 325
* some Stats may include nearby/connecting waterbodies
Nearby Tide Station Ward Cove
Distance from center: 2 km
Weekly High / Low Tide Table
04/12Fri03:25 AM540.287H cm
04/12Fri10:02 AM-60.151L cm
04/12Fri04:23 PM434.563H cm
04/12Fri09:58 PM100.314L cm
04/13Sat04:08 AM497.407H cm
04/13Sat10:52 AM-16.442L cm
04/13Sat05:17 PM391.226H cm
04/13Sat10:46 PM143.681L cm
04/14Sun04:56 AM447.835H cm
04/14Sun11:52 AM28.517L cm
04/14Sun06:24 PM354.571H cm
04/14Sun11:49 PM179.774L cm
04/15Mon05:59 AM400.201H cm
04/15Mon01:05 PM63.026L cm
04/15Mon07:50 PM336.875H cm
04/16Tue01:21 AM197.401L cm
04/16Tue07:25 AM367.661H cm
04/16Tue02:27 PM77L cm
04/16Tue09:15 PM344.954H cm
04/17Wed03:03 AM184.201L cm
04/17Wed08:57 AM362.001H cm
04/17Wed03:37 PM72.295L cm
04/17Wed10:16 PM368.202H cm

Marine Wind Meteogram for Lake/Chart

For real time, interactive Marine Wind prediction, download App
Date/TimeSpeed *Dir *
04/13 Sat 12:00PM3.17342.62
04/13 Sat 03:00PM2.41340.59
04/13 Sat 06:00PM4.363.76
04/13 Sat 09:00PM4.58358.68
04/14 Sun 12:00AM3.7510.53
04/14 Sun 03:00AM2.0728.66
04/14 Sun 06:00AM2.3353.27
04/14 Sun 09:00AM1.987.27
04/14 Sun 12:00PM2.459.7
04/14 Sun 03:00PM2.7110.39
04/14 Sun 06:00PM4.63.45
04/14 Sun 09:00PM3.0813.3
04/15 Mon 12:00AM1.3789.5
04/15 Mon 03:00AM1.9146.94
04/15 Mon 06:00AM4.14168.98
04/15 Mon 09:00AM2.56135.93
04/15 Mon 12:00PM2.04153.21
04/15 Mon 03:00PM2.53162.75
04/15 Mon 06:00PM3.62158.1
04/15 Mon 09:00PM4.21154.61
04/16 Tue 12:00AM3.57164.1
04/16 Tue 03:00AM3.37149.97
04/16 Tue 06:00AM3.22159.78
04/16 Tue 09:00AM2.99177.61
04/16 Tue 12:00PM2.58167.78
04/16 Tue 03:00PM2.75173.78
04/16 Tue 06:00PM2.64151.29
04/16 Tue 09:00PM2.88139.46
04/17 Wed 12:00AM3.49150.62
04/17 Wed 03:00AM3.09158.9
04/17 Wed 06:00AM2.58159.76
04/17 Wed 09:00AM2.45173.11
* : UTC Timezone, Speed in meters per sec, and True Direction