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Unit OT 18-35, Level 18, Central Park Towers, Dubai International Financial Centre, Dubai, P.O. Box 18006, United Arab Emirates
16200 Central Green Blvd
GAC Regional Office, Asia Pacific 78 Shenton Way, #29-01
Group Vice President, Asia Pacific & Indian Subcontinent
Unit OT 18-35, Level 18, Central Park Towers, Dubai International Financial Centre, Dubai, P.O. Box 18006, United Arab Emirates
Unit OT 18-35, Level 18, Central Park Towers, Dubai International Financial Centre, Dubai, P.O. Box 18006, United Arab Emirates
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31 Jul 2020 / Bahamas
At 200 AM EDT (0600 UTC), the center of Hurricane Isaias was located near latitude 20.6 North, longitude 72.7 West. Isaias is moving toward the northwest near 18mph (30 km/h), and a generally northwestward motion with some decrease in forward speed is expected for the next couple of days followed by turn toward the north-northwest.
Isaias is forecast to be near the Central Bahamas Friday night and move near or over the Northwestern Bahamas and near South Florida on Saturday.
Maximum sustained winds remain near 80mph (130 km/h) with higher gusts. Some strengthening is possible today, and Isaias is expected to remain a hurricane for the next few days.
Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 240 miles (390 km).
A dangerous storm surge will raise water levels by as much as 3-5 feet above normal tide levels in areas of onshore winds in the central and northwestern Bahamas. Storm surge will raise water level by as much as 1-3 ft above normal tide levels in the southeastern Bahamas.
Tropical storm conditions will continue to spread across portions of the Dominican Republic, Haiti, the southeastern Bahamas and Turks and Caicos tonight and early Friday. Hurricane conditions are expected to begin in the central Bahamas Friday morning and spread into the northwestern Bahamas beginning late Friday. Hurricane conditions are expected within portions of the the northwestern Bahamas Friday night and Saturday.
Tropical storm conditions are possible in the watch area in Florida beginning Saturday.
Isaias is expected to produce the following rain accumulations through Friday night:
- Dominican Republic and northern Haiti: 4-8 inches, with isolated maximum totals of 12 inches.
- Bahamas, Turks and Caicos: 4-8 inches.
- Cuba: 1-2 inches, with isolated maximum totals of 4 inches.
These rainfall amounts will lead to life-threatening flash flooding and mudslides, as well as river flooding. Urban and small stream flooding is expected for the U.S. Virgin Islands and Hispaniola.
From Friday night through Monday:
- South Florida into east-Central Florida: 2-4 inches, with isolated maximum totals of 6 inches.
These rainfall amounts could result in isolated flash and urban flooding, especially in low-lying and poorly drained areas.
Swells generated by Isaias are affecting portions of Puerto Rico, the Dominican Republic, the Turks and Caicos Islands and the southeastern Bahamas. These swells will spread along the coast of Cuba and into the central and northwestern Bahamas later today and across the east coast of Florida on Saturday. These swells are likely to cause life-threatening surf and rip current conditions.
(For information about operations in the Americas, contact the GAC Houston Hub Agency Center at [email protected])
Source: Extract from National Hurricane Center, Miami FL, Hurricane Isaias Intermediate Advisory No.12A issued at 2.00am EDT on Friday 31 July 2020