By PDC’s Senior Weather
Specialist Glenn James
CURRENT TROPICAL CYCLONES:
Tropical Cyclone 07L (Fiona)…is located about 335 miles east-southeast of the Leeward Islands
FIONA MOVING TOWARD THE LEEWARD ISLANDS… …TROPICAL STORM CONDITIONS EXPECTED TO BEGIN THERE BY FRIDAY NIGHT
Fiona is moving toward the west near 15 mph (24 km/h). A westward motion with some decrease in forward speed is expected through Saturday night, with a turn toward the west-northwest possible on Sunday.
On the forecast track, the center of Fiona is expected to move across the Leeward Islands Friday night and early Saturday, and move near the Virgin Islands and Puerto Rico late Saturday into Sunday.
Maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Slight strengthening is possible during the next few days.
Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center.
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are expected across portions of the northern Leeward Islands within the warning area beginning Friday evening. Tropical storm conditions are possible within the watch area across the Virgin Islands on Saturday and in Puerto Rico late Saturday or Saturday night.
RAINFALL: Fiona is expected to produce the following rainfall totals:
Leeward Islands, the British and U.S. Virgin Islands and Puerto Rico: 4 to 6 inches with isolated maximum totals of 10 inches across eastern Puerto Rico.
Eastern Hispaniola: 4 to 8 inches with isolated maximum totals of 12 inches.
These rains may produce flash and urban flooding, along with isolated mudslides in areas of higher terrain. Considerable flood impacts are possible across eastern portions of Puerto Rico.
STORM SURGE: Swells generated by Fiona are expected to begin affecting the Leeward Islands later today, spreading westward to the Virgin Islands and Puerto Rico on Friday and Saturday. These swells could cause life-threatening surf and rip current conditions.
SURF: Swells generated by Fiona are affecting the Leeward Islands, and are expected to spread westward to the Virgin Islands and Puerto Rico on Friday and Saturday. These conditions could cause life-threatening surf and rip current conditions.
A tropical wave located roughly midway between the west coast of Africa and the Lesser Antilles is producing disorganized shower activity.
Some slow development of this system is possible late this weekend and early next week when it turns northward over the central Atlantic.
* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 5 days…low…20 percent