Hurricane Ivan Advisory Number 23
National Hurricane Center Miami Fl
11 PM AST TUE SEP 07 2004

Extremely dangerous Ivan moving westward through the Southeastern Caribbean...New hurricane warnings issued...

At 1150 pm aSt....0350z...The government of Barbados has discontinued all warnings for St. Vincent and the grenadines.

At 11 pm aSt...0300z...The government of Trinidad and Tobago has downgraded the hurricane warning for Grenada and its dependencies to a tropical storm warning.

At 11 pm aSt...0300z...The government of the Dutch Netherland antilles has issued a hurricane warning for Aruba...Bonaire...and curacao. A hurricane warning remains in effect for St. Vincent...The Grenadines...And Grenada and its dependencies.

A hurricane watch and a tropical storm warning remain in effect for the Guajira Peninsula of Colombia...And for the entire northern coast of Venezuela.

At 8 pm aSt...0000z...The government of Trinidad and Tobago have discontinued the tropical storm warning for Trinidad and Tobago. At 11 pm aSt...0300z...The government of St. Lucia has discontinued the tropical storm warning for St. Lucia.

A tropical storm watch may be required for portions of the Dominican Republic and Haiti on wednesday.

Interests elsewhere in the lesser antilles and the eastern and Central Caribbean Sea should closely monitor the progress of Ivan.

At 11 pm aSt...0300z...The center of hurricane Ivan was located near latitude 12.1 north...Longitude 63.3 west or about 110 miles...175 km...West of Grenada. This position is also about 335miles...540km...East of Bonaire.

Ivan is moving toward the west near 17 mph...28 km/hr. A gradual turn toward the west-northwest is expected during the next 24 hours. This motion should bring the center of Ivan north of Aruba...Bonaire...and Curacao on wednesday. However...Any deviation to the left of the forecast track could bring the center close to those islands.

Maximum sustained winds are near 135 mph...215 km/hr...With higher gusts. This makes Ivan an extremely dangerous category 4 hurricane on the saffir-simpson hurricane scale. Strengthening is forecast during the next 24 hours.

Hurricane force winds extend outward up to 70 miles...110 km... From the center...And tropical storm force winds extend outward up to 160 miles...260 km.

Estimated minimum central pressure is 950 mb...28.05 inches.

Storm surge flooding of 3 to 5 feet above normal tide levels...Along with large and dangerous battering waves...Can be expected near the center of Ivan in the hurricane warning area.

Rainfall amounts of 5 to 7 inches...Possibly causing flash floods and mud slides...Can be expected along the path of Ivan..

Repeating the 11 pm ast position...12.1 n... 63.3w. Movement toward...West near 17 mph. Maximum sustained winds...135 mph. Minimum central pressure... 950 mb.