Science, weather, and natural history for sailors — what's actually happening in the water and sky around you
Dinoflagellates, the luciferin-luciferase reaction, and why dolphins leave comet trails underwater at night. Where to see it, how to photograph it, and the difference between a harmless glowing wake and a harmful algal bloom.
Read →The largest current on earth by volume — 60 miles wide, 3,000 feet deep, running north at 4–5 knots. What it means for coastal sailors, why wind against current creates dangerous seas, and Benjamin Franklin's chart.
Read →Sea surface temperature, sea breezes, trade winds, ENSO, and what "seas 4 to 6 feet" actually means. How to read a synoptic chart and what the weather fax tells you that the forecast doesn't.
Read →Flying fish, pilot whales, humpbacks and fin whales, Portuguese man-o-war, mahi-mahi at the weed line, stingrays in the shallows, nurse sharks under the dock, and the wildlife that appears only on night watch.
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