CASILIST : Hurricane Bonnie and Tropical Wave Update
From: J <j{at}weatherwatchers.org>
Date: Sun, 23 Aug 1998 11:42:17 -0400
Hurricane Bonnie has become a Major Hurricane this morning - Category
III. She has already equalled the maximum wind speed of Fran, 115mph,
and will probably still increase in strength. Current predictions are
for slow strengthening to add another 10 knots through 72 hours. Right
now she is "wobbling" or "meandering" which means that she has taken a
jog to the North temporarily, but don't let it fool you, she's only
feeling the effects of a trough pressing down on her from the North and
will likely resume a WNW track later today. If you don't believe me
check out this extreme example of "meandering" - Hurricane Roxanne from
1995: http://wxp.atms.purdue.edu/hurricane/1995/ROXANNE/track.gif
And finally, never assume anything... they can do plenty of other
strange things, such as 90 degree turns:
http://wxp.atms.purdue.edu/hurricane/1995/SEBASTIEN/track.gif or
loop-de-loops: http://wxp.atms.purdue.edu/hurricane/1996/MARCO/track.gif
The longrange climatological hurricane tracking model Trantech has now
moved estimates of landfall to Cape Hatteras only. The regular weather
models are producing varying results today because they had to be
"started" with a zero motion for Bonnie. The National Hurricane
Center's official track is for Bonnie to move towards SE NC (saying
nothing of what it might do before it hits as their forecast only goes
out 72 hours) and the AccuWeather prediction is similar with a little
more of an eastward track. In any case we won't have to worry about
landfall until Wednesday.
A Heavy Surf advisory is up for N. Fl and GA today because Bonnie is big
enough to generate large waves hundreds of miles out. It will likely be
added to the Carolina beaches when Bonnie starts moving again.
Unfortunately the public continues to be confused, and it runs the gamut
from being too prepared to not enough. People are "boarding up" in
Miami, where of course the chance of landfall is basically Zero at this
time. In Daytona Beach a man was quoted as saying "People aren't doing
much - it's still 700 miles away isn't it? Wait until it gets about 100
miles and you'll see some changes." If the storm was within 100 miles
of him there would be changes - but to the buildings and the trees - for
they would have been under Tropical Storm force winds for 75 miles
already
and the area would have been evacutated.
The Tropical Wave to the SE of Bonnie looks very impressive on
satellite, but a check of the stations on the islands that it is moving
over this morning yielded sustained winds of only 18mph maximum.
http://www.weatherwatchers.org/tropical/surface/index2.html
--
==============================================================
Jesse Ferrell - Meteorologist/Web Dev. - j{at}weatherwatchers.org
Central Atlantic Storm Investigators - www.weatherwatchers.org
"Dust will make you blind, nothing you can find;
Running scared ! Tornado !" --Vovoid, "Tornado" || ICQ No. 136832 ||