Edition 4 1992. This new edition of NP 250 has been reschemed to a larger scale and now includes Tidal Stream information for the English Channel only. Tidal streams for the Bristol Channel which hitherto were included in both NP 250 and NP 256 are now only shown in the latter.
This atlas contains 13 pairs of charts showing tidal streams at hourly intervals commencing 6 hours before HW Dover and ending 6 hours after HW Dover. It covers the area bounded by the Isles of Scilly to Dungeness and Ushant to Cap Gris-Nez.