Sunday, August 19, 2007

Hurricane Dean Intermediate Advisory Number 25a

Issued at: 7:44 AM EDT 8/19/07 (gateway).

Outer bands of dean about to reach jamaica, A hurricane warning remains in effect for the southwestern peninsula of haiti from west of the haiti-dominican border to port-au-prince. A hurricane warning is also in effect for jamaica and the cayman islands. A hurricane warning means that hurricane conditions are expected within the warning area within the next 24 hours. Preparations to protect life and property should be rushed to completion. A tropical storm warning is in effect for the coast of haiti north of port-au-prince to the northern haiti-dominican republic border. A tropical storm warning is also in effect for portions of eastern cuba, from the province of camaguey eastward to the province of guantanamo. A tropical storm warning means that tropical storm conditions are expected within the warning area within the next 24 hours. A tropical storm watch is in effect for portions of central cuba, for the provinces of ciego de avila, sancti spiritus, cienfuegos, matanzas, and isla de la juventud. A tropical storm watch means that tropical storm conditions are possible within the watch area, generally within 36 hours. Interests elsewhere in the western caribbean, including western cuba and the yucatan peninsula, should closely monitor the progress of dean. For storm information specific to your area, please monitor products issued by your local weather office. At 800 am edt, 1200z, the center of hurricane dean was located near latitude 16.8 north, longitude 74.3 west or about 180 miles, 295 km, east-southeast of kingston jamaica. Dean is moving toward the west-northwest near 18 mph, 30 km/hr, and this general motion is expected to continue for the next 24 hours. On this track, the core of the hurricane will be very near jamaica later today. Maximum sustained winds are near 145 mph, 230 km/hr, with higher gusts. Dean is a category four hurricane on the saffir-simpson scale. Some fluctuations in intensity are possible during the next 24 hours. Hurricane force winds extend outward up to 60 miles, 95 km, from the center, and tropical storm force winds extend outward up to 205 miles, 335 km. The estimated minimum central pressure was 921 mb, 27.20 inches. An air force reserve unit reconnaissance aircraft will be reaching the center of dean shortly. Coastal storm surge flooding of 7 to 9 feet above normal tide levels, along with large and dangerous battering waves, is possible near the center of dean within the hurricane warning area. Storm total rainfall amounts of 5 to 10 inches can be expected over jamaica, with maximum amounts of up to 20 inches. Amounts of 4 to 8 inches with maximum amounts of 12 inches are expected over the cayman islands. Amounts of 4 to 6 inches are possible over southern hispaniola with maximum totals of 10 inches. The remainder of hispaniola and eastern cuba could receive 2 to 4 inches of rain, with maximum amounts up to 7 inches. These rains could cause life-threatening flash floods and mudslides. Repeating the 800 am edt position, 16.8 n, 74.3 w. Movement toward, west-northwest near 18 mph. Maximum sustained winds, 145 mph. Minimum central pressure, 921 mb. The next advisory will be issued by the national hurricane center at 1100 am edt.

National Weather Service

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