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Archives >> 2012 News Talkbacks

Random Chaos
Weather Analyst


Reged: Sat
Posts: 998
Loc: Maryland
Re: A New Year and a New Season
      Tue Mar 27 2012 04:35 PM

A new season and a new Saffir-Simpson scale.

The Saffir-Simpson Hurricane Wind Scale (SSHWS) is undergoing a minor modification for 2012 in order to resolve awkwardness associated with conversions among the various units used for wind speed in advisory products. The change broadens the Category 4 wind speed range by one mile per hour (mph) at each end of the range, yielding a new range of 130-156 mph. This change does not alter the category assignments of any storms in the historical record, nor will it change the category assignments for future storms.

Changes:

Category 3 now ends at 129mph (previously was 130mph)
Category 4 now is 130mph to 156mph (previously was 131 to 155mph)
Category 5 is now 157mph and higher (previously started at 156mph)

Note that if you used Knots before, there is no change.

Source: http://www.nhc.noaa.gov/aboutsshws.php

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Subject Posted by Posted on
* A New Year and a New Season Ed DunhamAdministrator Tue Mar 27 2012 04:35 PM
. * * 2012 Colorado State Forecast danielwAdministrator   Wed Apr 04 2012 05:02 AM
. * * Re: A New Year and a New Season Random Chaos   Tue Mar 27 2012 04:35 PM
. * * Re: A New Year and a New Season Ljefferson   Tue Feb 28 2012 03:15 PM

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