I am trying to determine what the pressure is, High or low, in the no wind zones, Blue/purple.? I have made mistakes telling a boat that there is no wind in that zone and they reported crazy winds. I know there are troughs and ridges of pressure where the winds go in and out. I want to give good advice. I am also a member and a receiving station for Marine Traffic.

Posts made by diveservices
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Wind Screen and wind accumulated screen