New England and Lakes Region Weather
Current, 2 Day Forcast and NE Radar
and <a href="http://www.erh.noaa.gov/box/radar.shtml">NOAA</a>
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The Mariners' 1-2-3 Rule, or "Danger area", is indicated by shading. The 1-2-3 Rule, commonly taught to mariners, refers to the rounded long-term NHC/TPC forecast errors of 100-200-300 nautical miles at 24-48-72 hours, respectively. The contour defining the shaded area is constructed by accounting for those errors and then broadened further to reflect the maximum 34-kt wind radii fore...