CURRENT TROPICAL CYCLONES:
Tropical Cyclone 18L (Sam)…is located about 550 miles south-southeast of Bermuda
Tropical Cyclone 20L (Victor)…is located about 585 miles southwest of the Cabo Verde Islands
Tropical Cyclone 18L (Sam)
SAM STILL A POWERFUL 145 MPH HURRICANE…DANGEROUS SURF EXPECTED FOR A LARGE PORTION OF THE WESTERN ATLANTIC SHORELINE
According to the NHC Advisory 34…Sam is moving toward the north-northwest near 16 mph (26 km/h) and this motion with an slight increase in forward speed is expected tonight. A turn toward the north is anticipated on Friday, and a northeastward motion is forecast to begin on Saturday. On the forecast track, the core of Sam will pass to the east of Bermuda early Saturday. Maximum sustained winds remain near 145 mph (230 km/h) with higher gusts. Sam is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are expected during the next day or so, followed by gradual weakening. Sam is forecast to remain a major hurricane into Saturday, with additional weakening forecast later in the weekend. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are possible on Bermuda beginning Friday night or early Saturday.
SURF: Swells generated by Sam will impact the northern Leeward Islands and the Greater Antilles, including Puerto Rico, during the next few days. Swells are expected to reach Bermuda and the Bahamas by Friday, and then spread to the United States east coast by this weekend. These swells could cause life-threatening surf and rip current conditions.
Tropical Cyclone 20L (Victor)
VICTOR STRENGTHENS OVER THE TROPICAL EASTERN ATLANTIC
According to the NHC Advisory 7…Victor is moving toward the west-northwest near 12 mph (19 km/h). A west-northwest to northwest motion over the eastern tropical Atlantic is expected through the weekend. Recent satellite wind data indicate that maximum sustained winds are now near 60 mph (95 km/h) with higher gusts. Gradual strengthening is forecast during the next day or so. However, a weakening trend is expected to begin over the weekend. Tropical-storm-force winds extend outward up to 175 miles (280 km) mainly to the northeast of the center.