Alex Advisories
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Re: So ... just why Alex caught even us offguard ...
Stormsfury wrote:Well, simple ... not ONE of us expected this to become a hurricane in its incipient stage, let alone Cat 2. Second, we all basically had to play catchup ... which lends to the old addage, that intensity forecasts are ALWAYS the hardest to predict ...
Alex is a small compact storm very susceptible to subtle changes either for or against it ... yesterday, when the s/w ridge built over top of the system, it responded very quickly with a strong burst of convection as the NE Shear relaxed ... (however, there was ENHANCED divergence or diffluent flow which aided in the development of the convection) ... As the s/w ridge became more established, convection was able to build and wrap around the center in a much more organized fashion, and we also saw, the vertical profiles begin to match up instead of the chaotic mess just 24 hours previous, with low level swirls exiting out of the NNE side of the storm, and the MLC meandering ...
Yesterday afternoon, and evening, during the diurnal mininum, we saw convection fade out somewhat but still enough to allow Alex to hold its own. As the afternoon wore on, another very strong burst of convection occurred, and again, an enhancement was caused by a small jet streak in the RRQ of the trough which placed diffluent flow right over Alex, and allowed for another round of intensification. Southwesterly winds increased aloft, but also, the cyclone also responded by picking up speed yielding lesser amounts of shear. The small size of Alex allowed for pressures to come down fairly quickly (but not in the classification of rapid), and also the high Heat Potential in the Gulf Stream makes Alex - "the storm that seized the window of opportunity to the fullest" ...
SF
Agree, and Awesome discussion
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- Professional-Met
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Bad news. 2:07PM: Major flooding in Hatteras Village...water from sound over the docks in the marina. Men are trying to tie boats down but ropes are being pulled to max...possible structural flooding. Tides 6 feet above normal and about 1 foot over dock. Winds out of the northeast @ hurricane force.
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- Professional-Met
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- Typhoon_Willie
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Damage reports corroborate your reports...
120 p.m.
Hatteras Village BROADCAST MEDIA
78 MPH WIND GUST.
4 FOOT SOUNDSIDE STORM SURGE. WIDESPREAD FLOODING AND
CARS FLOATING.
WIDESPREAD SOUNDSIDE FLOODING. NUMEROUS HOMES FLOODED.
5 FEET OF WATER ON PARTS OF HIGHWAY 12. WIDESPREAD
SOUNDSIDE FLOODING.
120 p.m.
Hatteras Village BROADCAST MEDIA
78 MPH WIND GUST.
4 FOOT SOUNDSIDE STORM SURGE. WIDESPREAD FLOODING AND
CARS FLOATING.
WIDESPREAD SOUNDSIDE FLOODING. NUMEROUS HOMES FLOODED.
5 FEET OF WATER ON PARTS OF HIGHWAY 12. WIDESPREAD
SOUNDSIDE FLOODING.
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- Tropical Depression
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I'd say Ocracoke so far has gotten the worst of Alex.
Code: Select all
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
210 PM EDT TUE AUG 03 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0120 PM HURRICANE HATTERAS VILLAGE 35.22N 75.69W
08/03/2004 OUTER BANKS DARE NC BROADCAST MEDIA
78 MPH WIND GUST.
0140 PM HURRICANE OCRACOKE 35.10N 75.98W
08/03/2004 OUTER BANKS HYDE NC BROADCAST MEDIA
4 FOOT SOUNDSIDE STORM SURGE. WIDESPREAD FLOODING AND
CARS FLOATING.
0145 PM HURRICANE OCRACOKE 35.10N 75.98W
08/03/2004 OUTER BANKS HYDE NC LAW ENFORCEMENT
WIDESPREAD SOUNDSIDE FLOODING. NUMEROUS HOMES FLOODED.
0200 PM HURRICANE OCRACOKE 35.10N 75.98W
08/03/2004 OUTER BANKS HYDE NC BROADCAST MEDIA
5 FEET OF WATER ON PARTS OF HIGHWAY 12. WIDESPREAD
SOUNDSIDE FLOODING.
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- cycloneye
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This afternoon T numbers=Alex,4.5/TD#2 2.0
03/1745 UTC 13.4N 55.1W T2.0/2.0 02 -- Atlantic Ocean
03/1745 UTC 35.3N 75.2W T4.5/4.5 ALEX -- Atlantic Ocean
In terms of the dvorak numbers of sat estimates no changes from this morning.
03/1745 UTC 35.3N 75.2W T4.5/4.5 ALEX -- Atlantic Ocean
In terms of the dvorak numbers of sat estimates no changes from this morning.
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