Meteorological Analysis
|
Alex originated from a tropical wave which left the coast of Africa on July 26th.
A surface circulation formed in association with the wave by the 27th and the
wave was upgraded into a tropical depression, about 300 nm SSW of the Cape
Verde Islands. The depression continued to move WNW under the subtropical
ridge at a good pace and gradually organized into tropical storm Alex by the
29th. Shear then began to increase over Alex from a trough to the NW of Alex,
and Alex became asymmetrical. Despite this, Alex reached a peak intensity of
50 mph on the 30th with a pressure of 1002 mb due to a sudden burst of
convection. The convection waned though as shear continued and Alex
weakened into a tropical depression by August 2nd. The closed circulation in
association with Alex then opened up and the system as a whole dissipated
the same day.
|
Casualty and Damage Overview
|
There are no reports of casualties or damage in association with Alex.
|
Alex Hurricane Research Division Products
|
|
|
Imagery
|
|
|
|
Tracking Data
|
Tropical Storm Alex
Time Lat Lon Wind(mph) Pressure Storm type
--------------------------------------------------------------------------
12 GMT 07/27/98 11.3N 25.4W 30 1009 Tropical Depression
18 GMT 07/27/98 11.7N 27.2W 30 1009 Tropical Depression
0 GMT 07/28/98 12.2N 29.2W 30 1009 Tropical Depression
6 GMT 07/28/98 12.6N 31.3W 30 1008 Tropical Depression
12 GMT 07/28/98 12.9N 33.3W 35 1007 Tropical Depression
18 GMT 07/28/98 13.1N 35.1W 35 1006 Tropical Depression
0 GMT 07/29/98 13.3N 36.8W 40 1005 Tropical Storm
6 GMT 07/29/98 13.5N 38.5W 40 1005 Tropical Storm
12 GMT 07/29/98 13.7N 40.0W 40 1005 Tropical Storm
18 GMT 07/29/98 13.9N 41.3W 40 1005 Tropical Storm
0 GMT 07/30/98 14.2N 42.6W 40 1005 Tropical Storm
6 GMT 07/30/98 14.4N 43.9W 45 1003 Tropical Storm
12 GMT 07/30/98 14.7N 45.0W 45 1003 Tropical Storm
18 GMT 07/30/98 15.1N 46.1W 50 1003 Tropical Storm
0 GMT 07/31/98 15.4N 47.1W 50 1002 Tropical Storm
6 GMT 07/31/98 15.6N 48.1W 50 1003 Tropical Storm
12 GMT 07/31/98 15.7N 49.2W 50 1003 Tropical Storm
18 GMT 07/31/98 15.8N 50.4W 45 1005 Tropical Storm
0 GMT 08/01/98 15.9N 51.7W 40 1007 Tropical Storm
6 GMT 08/01/98 16.3N 53.1W 40 1009 Tropical Storm
12 GMT 08/01/98 16.9N 54.3W 45 1009 Tropical Storm
18 GMT 08/01/98 17.7N 55.4W 45 1012 Tropical Storm
0 GMT 08/02/98 18.4N 56.5W 40 1012 Tropical Storm
6 GMT 08/02/98 19.0N 57.7W 40 1012 Tropical Storm
12 GMT 08/02/98 19.9N 58.6W 40 1012 Tropical Storm
18 GMT 08/02/98 21.0N 59.3W 35 1014 Tropical Depression
|
Tracking maps courtesy of NHC
|
|
|
Selected Satellite Image
|
|
|