Planning Tools Weather & Tides

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World Time Zone Map with current time (24 HOUR FORMAT) Change Time mode: 12 hours (AM/PM) or 24 hours
Regional Maps
image map
worldtimezone
Sections Maps
Sun Clock
http://www.worldtimezone.com/index24.php

Flow models of San Francisco Bay 

NOAA Tides & Currents  

NOAA Tides & Currents  

TIDES4FISHING | Tides times, tide table & solunar charts for fishing. Tides4fishing cookies are used to personalise content and ads, save your recent fishing sites and remember your display settings.

https://www.marinetraffic.com/en/ais/home/centerx:-121.8/centery:37.5/zoom:9 

The Weather Channel

Past Weather 

Past Weather 

Flightradar24 is a global flight tracking service that provides you with real-time information about thousands of aircraft around the world. Flightradar24 tracks 180,000+ flights, from 1,200+ airlines, flying to or from 4,000+ airports around the world in real time. 

Caltrains road conditions and cameras 

NOAA ENCs (ENC):

Vector files of chart features and available in S-57 format.

NOAA ENCs support marine navigation by providing the official Electronic Navigational Chart used in ECDIS and in electronic charting systems.

NOAA ENCs are updated weekly with Notice to Mariner corrections.

World Time Zone Map with current time (24 HOUR FORMAT) Change Time mode: 12 hours (AM/PM) or 24 hours
Regional Maps
image map
worldtimezone
Sections Maps
Sun Clock
http://www.worldtimezone.com/index24.php

World Time Zones The current time all around the world for every country, state and major city with additional information on each time zone.

Number of days between dates. + Total Minutes, seconds.

Latitude & Longitude Lesson

1. You can use the crescent moon to find south (or north)  3. Most trees grow in a check mark shape 4. At a T junction, you can usually tell which way to turn  5. You can use Cassiopeia to find the North Star
http://www.atlasobscura.com/.../wayfinding-tips-tristan... 

Xavier Jubier's 2017 Total Eclipse Interactive Google Map! Want to see the eclipse on Monday here is a great reference guide. Make sure you were appropriate glasses or you will ruin your eyes! read all notes for +- time.
http://www.eclipse2017.org/xavier_redirect.htm

Distance calculation
Distance, route info, time difference. Worldwide.

International Metric System of SI Units
SI base units
SI derived units
prefixes
units
derived units
ConvertUnits.com

http://www.convertunits.com/SI-units.php

Atlas of Night Sky Brightness. I can verify the accuracy since La Gonave is off the grid. However there is a Pizzeria on the Island run by generators inside it's own compound. Frankly it feels very odd to be inside a well lit compound when it is pitch black out side the gate. 

Conversion Conversions & Equivalent Measures Use this better:
Volume (Dry)
Oven Temperatures
Weight (Mass)
Dry Measure Equivalents
Volume (Liquid)
British and American Variances

How to Navigate by the Sun Video