| Forecast Advisory #018 0300 UTC |
Public Advisory #018 500 PM HST |
Discussion #018 500 PM HST |
Wind Speed Probabilities #018 0300 UTC |
ICAO Advisory #018 0300 UTC |
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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 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 forecast at each of those times by the CPHC. The CPHC 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 CPHC and proceed at their own risk. The danger area will not be depicted from tropical cyclones when they become extratropical.