Meteorological Analysis
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The unnamed sub tropical storm originated from an upper level low which formed near the
Canary Islands on September 28th. Convection fired near the low center on September 30th
and a surface trough formed due to this. The system then moved WNW into an unstable
air-mass, and more convection fired. This caused a surface circulation to form on October
3rd, and by the 4th a sub tropical depression had formed. The depression then turned
north eastwards due to an approaching cold front, and became a sub tropical storm on the
4th of October. The storm attained max winds of 50 mph, and moved through the Azores
on the 4th. The storm then got absorbed by a low along the approaching cold front on the
5th. This low happened to become hurricane Vince later on.
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Casualty and Damage Overview
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There were no casualties or damage reported in association with the Unnamed
sub tropical storm.
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Imagery
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Tracking Data
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Unnamed Subtropical Storm
Time Lat Lon Wind(mph) Pressure Storm type
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0 GMT 10/04/05 33.8N 31.8W 35 1012 Subtropical Depression
6 GMT 10/04/05 34.8N 30.2W 35 1009 Subtropical Storm
12 GMT 10/04/05 35.9N 28.5W 40 1004 Subtropical Storm
18 GMT 10/04/05 37.1N 26.7W 50 997 Subtropical Storm
0 GMT 10/05/05 38.8N 25.0W 50 997 Subtropical Storm
6 GMT 10/05/05 41.0N 23.3W 45 1000 Extratropical Storm
12 GMT 10/05/05 43.6N 23.0W 45 1002 Extratropical Storm
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Courtesy of NHC
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Selected Satellite Image
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