| vineyardsaker |
| (Weather Guru) |
| Thu Sep 25 2008 02:48 AM |
|
definitions
|
Hi,
I just saw the following on the 8PM NHC advisory on 94L:
Quote:
THIS STRUCTURE IS MORE CHARACTERISTIC OF AN EXTRA-TROPICAL WEATHER
SYSTEM. HOWEVER...THERE IS STILL THE POTENTIAL FOR THIS SYSTEM TO
BECOME A TROPICAL OR SUBTROPICAL CYCLONE TONIGHT OR THURSDAY
Could somebody please point me to a good (basic) definition of what a system needs to do to be considered extratropical, subtropical or tropical? Alternatively (or in addition) I would be interested in reading up on the kind of systems out there so maybe you could point me to a text available on the Internet which would provide an introduction to this topic for a layman?
Many thanks!
VS