a. Synoptic History
The origin of Gustav is tracked back to an area of disturbed
weather that moved from Africa to the Atlantic Ocean on 24 August accompanied
by a low-level cloud circulation. This was the third of three closely-spaced
tropical cyclones which included Hurricanes Edouard
The disturbed weather gradually became better organized and a tropical
depression formed from this weather on the 26th just south of the Cape
The depression moved west-southwestward at about 14 mph
for two days, under the steering of a ridge of high pressure to its north.
The motion turned toward the northwest on the 28th in response to a mid
Atlantic trough. The trough became a cut-off low which continued to steer
the storm northwestward for about five days, after which dissipation occurred.
The maximum intensity of Gustav is estimated at 46 mph on the 29th.
A limiting factor in the storm's development was originally the outflow
from Hurricane Fran
which interfered with the organization of convection during the 26th and
27th. Then the cut-off low mentioned above produced a shearing environment
which eventually led to Gustav's dissipation on the 2nd of September.
b. Meteorological Statistics
There were no ship reports of tropical storm force winds
in association with Gustav.
c. Casualty and Damage Statistics
Gustav remained in the central tropical Atlantic Ocean during its existence and did not affect land.
Intensity For Tropical Storm Gustav