In message , Stuart
writes

"BlueLightning" wrote in message
oups.com...
Let's not call these things Hurricanes please

deep atlantic lows, with strong winds in their circulations

they don't look like hurricanes on sat pics
they don't have warm cores
they have not developed in the tropics


According to the Beaufort Scale its 64Knots +
http://www.r-p-r.co.uk/beaufort.htm

By definition, a "hurricane" is the name given to a tropical cyclone in
the North Atlantic Ocean or NE Pacific Ocean in which sustained wind
speeds (averaged over 1-minute) are hurricane force (64 knots or more).
In the NW Pacific such cyclones are called "typhoons". In the Indian
Ocean they are called "cyclones"

Hurricane force winds can (and often do) occur in low pressure systems
that do not have any tropical characteristics. This does not mean that
these low pressure systems are hurricanes. They are not.

For a system to be called a hurricane (or typhoon) it must

a) be warm-cored and have originated in the tropics or
sub-tropics
and b) have sustained winds of 64 knots or more

If only one of these two requirements is met the system is not a
hurricane or typhoon.

The terms "hurricane" and "hurricane force" mean quite different things.

This may all sound a bit pedantic but on a scientific newsgroup it makes
sense to get the science right :-)

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England