Tropical Cyclone Danger graphic for GIL
Storm Archive
Forecast
Advisory
#031

5:00 pm HST
Public
Advisory
#031

5:00 pm HST
Discussion
#031

5:00 pm HST
Wind Speed
Probabilities
#031

5:00 pm HST
ICAO
Advisory
#031

5:00 pm HST
Warnings/Cone Interactive Images
Warnings/Cone Interactive Map
Warnings/Cone Static Images
Warnings/Cone Static Images
Wind History
Wind History
Warnings and Surface Wind
Warnings and Surface Wind
Tropical Storm Wind Speed Probabilities
Tropical Storm
Wind Speed
Probabilities
50-knot Wind Speed Probabilitties
50-knot
Wind Speed
Probabilities
Hurricane Wind Speed Probabilities
Hurricane
Wind Speed
Probabilities
Satellite
Satellite
Sea Surface Temperatures
Sea Surface Temperatures
Mariner's 1-2-3 Rule
Mariner's 1-2-3 Rule
kml file
kml
Probability Charts
Probability Charts

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Gil Tropical Cyclone Danger graphic
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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.