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Hurricane Gustav Public Advisory Number 20A

Statement as of 8:00 PM EDT on August 29, 2008

...Gustav strengthening as it approaches the Cayman Islands...

A Hurricane Warning remains in effect for the Cayman Islands...and
for the western Cuban provinces of Isla de Juventud...Pinar del
Rio...la Habana...and Ciudad de la Habana.

A Tropical Storm Warning remains in effect for Jamaica...and for the
central Cuban provinces of Matanzas...Cienfuegos...Villa
Clara...Sancti Spiritus...Ciego de Avila...Camaguey...and Granma.
A tropical storm watch remains in effect for the lower Florida Keys
from west of the Seven Mile Bridge westward to the Dry Tortugas. A
tropical storm watch means that tropical storm conditions are
possible within the watch area...generally within 36 hours.

For storm information specific to your area...please monitor
products issued by your local weather office.

At 800 PM EDT...0000z...the center of Hurricane Gustav was located
near latitude 19.3 north...longitude 80.0 west or about 25 miles...
40 km...south of the islands of Little Cayman and Cayman Brac.
This is also about 90 miles...145 km...east of Grand Cayman and
about 365 miles...585 km...east-southeast of the western tip of
Cuba.

Gustav is moving toward the northwest near 11 mph...18 km/hr...and
this general motion is expected to continue during the next couple
of days. On this track...the center of Gustav will pass near or
over the Cayman Islands tonight...over the western portions of Cuba
on Saturday...and into the southern Gulf of Mexico on Saturday
night or Sunday.

Reports from an Air Force Reserve hurricane hunter aircraft indicate
that maximum sustained winds have increased to near 80 mph...130
km/hr...with higher gusts. Gustav is a category one hurricane on
the Saffir-Simpson scale. Continued strengthening is forecast
during the next couple of days...and Gustav could become a major
hurricane near the time it crosses western Cuba.

Hurricane force winds extend outward up to 30 miles...45 km...from
the center...and tropical storm force winds extend outward up to 160
miles...260 km.

The minimum central pressure recently reported by the hurricane
hunter was 975 mb...28.79 inches.

Coastal storm surge flooding of 2 to 5 feet above normal tide levels
is possible in the Cayman Islands...with 8 to 13 feet possible near
where the center of Gustav crosses western Cuba...including Isla de
Juventud.

Gustav is expected to produce total rainfall accumulations of 6 to
12 inches across Jamaica...the Cayman Islands...and western
Cuba...with isolated maximum amounts of up to 25 inches possible.
These rains will likely produce life-threatening flash floods and
mud slides. Rainfall accumulations of 2 to 4 inches are possible
over southern Cuba. Precipitation from Gustav may begin to affect
the Florida Keys and South Florida during Saturday.

Repeating the 800 PM EDT position...19.3 N...80.0 W. Movement
toward...northwest near 11 mph. Maximum sustained winds...80 mph.
Minimum central pressure...975 mb.

The next advisory will be issued by the National
Hurricane Center at 1100 PM EDT.

$$
Forecaster Beven