SkeetoBiteAdministrator
(Master of Maps)
Mon Sep 19 2005 06:13 AM
Re: Mariner's 123

Quote:

Can anyone explain the Mariner's 123 to me.. It looks like all of Florida is shaded in this picture for Rita.

http://www.nhc.noaa.gov/refresh/graphics_at3+shtml/084708.shtml?basin



Right below that picture is....

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 forecast at each of those times by the NHC/TPC. The NHC/TPC 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 TPC/NHC and proceed at their own risk. This product also includes areas of possible tropical cyclone formation within the next 36 hours.

Source: National Hurricane Center


Note: This is NOT an official page. It is run by weather hobbyists and should not be used as a replacement for official sources. 
CFHC's main servers are currently located at Hostdime.com in Orlando, FL.
Image Server Network thanks to Mike Potts and Amazon Web Services. If you have static file hosting space that allows dns aliasing contact us to help out! Some Maps Provided by:
Great thanks to all who donated and everyone who uses the site as well. Site designed for 800x600+ resolution
When in doubt, take the word of the National Hurricane Center