TONGASS NARROWS (Marine Chart : US17430_P2574)

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-131.72
Min Latitude55.28
Max Longitude-131.55
Max Latitude55.37
Edition Label 112
Edition Label 21
Edition Label 325
* some Stats may include nearby/connecting waterbodies
Nearby Tide Station Ketchikan
Distance from center: 1 km
Weekly High / Low Tide Table
10/02Sun06:12 AM355.994H cm
10/02Sun11:34 AM167.979L cm
10/02Sun05:48 PM434.592H cm
10/03Mon12:54 AM47.058L cm
10/03Mon07:44 AM341.798H cm
10/03Mon01:02 PM192.198L cm
10/03Mon07:14 PM410.829H cm
10/04Tue02:24 AM49.321L cm
10/04Tue09:17 AM359.496H cm
10/04Tue02:46 PM180.309L cm
10/04Tue08:50 PM413.676H cm
10/05Wed03:43 AM28.842L cm
10/05Wed10:24 AM397.534H cm
10/05Wed04:07 PM135.726L cm
10/05Wed10:09 PM439.304H cm
10/06Thu04:44 AM0.816L cm
10/06Thu11:15 AM440.38H cm
10/06Thu05:06 PM79.306L cm
10/06Thu11:11 PM470.06H cm
10/07Fri05:33 AM-22.018L cm
10/07Fri11:56 AM479.895H cm
10/07Fri05:55 PM24.92L cm

Marine Wind Meteogram for Lake/Chart

For real time, interactive Marine Wind prediction, download App
Date/TimeSpeed *Dir *
10/03 Mon 06:00PM2.3156.22
10/03 Mon 09:00PM2.72146.81
10/04 Tue 12:00AM3.4148.53
10/04 Tue 03:00AM3.55160
10/04 Tue 06:00AM3.53163.07
10/04 Tue 09:00AM3.73161.98
10/04 Tue 12:00PM3.16161.24
10/04 Tue 03:00PM1.73189.78
10/04 Tue 06:00PM0.64308.28
10/04 Tue 09:00PM3.45356.81
10/05 Wed 12:00AM3.36330.48
10/05 Wed 03:00AM2.4285.78
10/05 Wed 06:00AM1.94263.24
10/05 Wed 09:00AM2.23295.31
10/05 Wed 12:00PM1.26299.05
10/05 Wed 03:00PM1.78267.73
10/05 Wed 06:00PM1.91338.15
10/05 Wed 09:00PM1.42306.96
10/06 Thu 12:00AM1.65318.24
10/06 Thu 03:00AM0.83312.54
10/06 Thu 06:00AM0.27288.31
10/06 Thu 09:00AM1.71169.55
10/06 Thu 12:00PM2.98162.42
10/06 Thu 03:00PM3.25156.82
10/06 Thu 06:00PM4157.3
10/06 Thu 09:00PM4.55150.44
10/07 Fri 12:00AM4.48148.85
10/07 Fri 03:00AM3.92151.14
10/07 Fri 06:00AM3.98157.02
10/07 Fri 09:00AM3.78155.56
10/07 Fri 12:00PM3.82153.05
10/07 Fri 03:00PM3.93153.22
* : UTC Timezone, Speed in meters per sec, and True Direction