CASILIST : Tropical Storm Earl
From: J <j{at}weatherwatchers.org>
Date: Mon, 31 Aug 1998 17:55:08 -0400
Tropical Storm Earl formed in the gulf with the 5pm statement from NHC.
http://www.weatherwatchers.org/tropical/1998/5/
Interesting AccuWeather discussion this morning hints at possible
parallels with Hurricane Elena and the Blizzard of '93:
http://www.accuweather.com/hurr98f/atlantic_qx01
They have also added a mirror of the NHC statements (the more the
merrier!)
http://www.accuweather.com/hurr98f/nhcindex_qx01
More info / technical discussion by Member Mike Reddin:
We my "sooner" than later prediction has come true, The National
Hurricane Center
has upgraded TD5 right to Tropical Storm Earl on the first advisory, max
sustained
winds 35 knots, pressure 1002mb heading NW at 4 knots. Earl is projected
to strike
near the Florida panhandle as a minimal hurricane in just 72 hours
followed by rapid
acceleration up the eastern seaboard. [The track and speed is subject to
great debate
between UKMET/NOGAPS vs. AVN/GFDL.
I will update the casi.homesite.net with the scoop this evening if
possible.
Because conditions are forecasted to become favorable for development
with SST
of 32C, keep an eye out for *possible* explosive tropical cyclogensis to
occur within
48 hours. One thing for sure though, Earl promises to be a very VERY wet
storm system
with 6-12"+ rainfall amounts anticipated on the Gulf Coast states within
a couple hundred
miles of where Earl makes landfall [if??]. Accuweather is talking about
a possible
parallel with Hurricane Elena, which some of you may recall was a bear
to forecast! Let's
hope that does not end up the case.
In summation, the ETA model shows a slow drift north for Earl with
subtle signs of a
NE turn after 48 hours. The AVN is similar with a northward drift,
turning NE at 48-60 hours
and striking the Florida panhandle in 72 hours. Last night's MRF carried
the system
right up the eastern seaboard as a "coastal hugger", with an
acceleration that would
carry it to New England by the end of the week! NoGaps and the UKMET
keep the
system drifting aimlessly [literally] in the central Gulf. The NHC/TPC's
GFDL model
is initialized off the AVN so if the AVN initialization is in error it
can carry out to the
tropical models as well, most of these models take Earl to the Florida
Panhandle or
Mississippi coast then accelerating NE.
The key to the path is a digging trough at 500mb over the Great Lakes
and several
strong shortwaves roating through the trough. The AVN paints the picture
of a strong
short-wave now diving into the upper Midwest as picking up Earl, while
NOGAPS lets
the short-wave pass the storm by, leaving it in a collapsed steering
environment. Quite
honestly either scenario is viable, so stay tuned for updates.
Mike Reddin
--
==============================================================
Jesse Ferrell - Meteorologist/Web Dev. - j{at}weatherwatchers.org
Central Atlantic Storm Investigators - www.weatherwatchers.org
"They're not who we're looking for; they're just meteorologists-
storm chasers." --Peter Watts, "Millennium" || ICQ No. 136832 ||