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Hurricane LOWELL


Home   Public Adv   Fcst Adv   Discussion   Wind Probs   Graphics   Archive  


Hurricane Wind Speed Probability
Hurricane Wind
Speed Probability

50-knot Wind Speed Probability
50-knot Wind
Speed Probability

34-knot Wind Speed Probability
Trop Storm Wind
Speed Probability

Wind History
Wind
History

Google Maps API Warnings and Track Forecast Cone
Warnings/Cone
Interactive Map

Warnings and 5-Day Cone
Warnings/Cone
Static Images

Surface Wind Field
Warnings and
Surface Wind

Mariner's 1-2-3 Rule
Mariner's
1-2-3 Rule

Mariners' 1-2-3 Rule

Click image to zoom out [full basin map of tropical cyclone activity]
Click Here for a Printer Friendly Graphic

About this product:

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 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 tropical storm force (34 knot) wind radii forecast at each of those times by the NHC. The NHC does not warrant that avoiding these danger areas will eliminate the risk of harm from tropical cyclones.

Users operating in the vicinity of these systems are advised to continually monitor the latest Forecast/Advisories from the NHC and proceed at their own risk. Areas are also shaded for systems in which NHC forecasters believe there is an adequate chance of tropical cyclone formation within the next 48 hours.



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Page last modified: Thursday, 21-Aug-2014 19:54:30 UTC