Working chart extract
Accuracy Draws the Open Sea
A monthly atlas distilled from ship logs: wind roses tally prevailing force, green currents bend through the grid, and every square carries measured weather.
LatReport classObs.
20 NTrade wind842
32 NGale limit116
44 NIce warning029
June pilot chart · ocean climatology plate
HYD 41-06
Set west by south0.8 kt227 logs averaged
Gale frequency14%barometer falling