Meteorological Analysis
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Alpha originated from a tropical wave which entered the Windward Islands on
October 19th. Environmental conditions were favorable, and convective activity
increased. A surface low then formed under the convection and moved WNW.
Doppler radar from Puerto Rico indicated increasing organization with this
system, and a tropical depression formed on October 22nd about 180 nm
from San Juan, Puerto Rico. The depression became Alpha on that day, as it
approached Hispaniola. This was the first time that the NHC had to use the
Greek alphabet, as they ran out of normal names for storm naming. Alpha
soon attained mix winds of 50 mph, and made landfall with this intensity near
Barahona, Dominican Republic on the 23rd. Alpha weakened significantly over
Hispaniola, and there are indications the surface circulation disappeared during
the crossing. Alpha then raced north over the south eastern Bahamas and
was absorbed by Wilma on the 25th.
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Casualty and Damage Overview
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Heavy rains caused mudslides across Hispaniola, leveling 400 homes based on
reports. 26 people reportedly died in this fray, 17 in Haiti and 9 in the Dominican Republic.
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Imagery
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Tracking Data
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Tropical Storm Alpha
Time Lat Lon Wind(mph) Pressure Storm type
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12 GMT 10/22/05 15.8N 67.5W 35 1007 Tropical Depression
18 GMT 10/22/05 16.5N 68.5W 40 1005 Tropical Storm
0 GMT 10/23/05 17.3N 69.6W 50 1000 Tropical Storm
6 GMT 10/23/05 17.8N 70.5W 50 998 Tropical Storm
12 GMT 10/23/05 18.6N 72.2W 40 1002 Tropical Storm
18 GMT 10/23/05 19.8N 72.7W 35 1004 Tropical Depression
0 GMT 10/24/05 21.6N 72.9W 35 1004 Tropical Depression
6 GMT 10/24/05 23.5N 73.0W 35 1004 Tropical Depression
12 GMT 10/24/05 25.1N 72.4W 35 1004 Tropical Depression
18 GMT 10/24/05 27.9N 70.8W 35 1004 Tropical Depression
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Tracking map courtesy of Plymouth
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Courtesy of NHC
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Selected Satellite Image
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