NWS National Hurricane Center Miami FL AL112017
1100 AM AST Sat Sep 02 2017
…IRMA MOVING WESTWARD ACROSS THE ATLANTIC AS A SMALL HURRICANE…
SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
ABOUT 1220 MI…1965 KM E OF THE LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS…110 MPH…175 KM/H
PRESENT MOVEMENT…W OR 265 DEGREES AT 15 MPH…24 KM/H
MINIMUM CENTRAL PRESSURE…973 MB…28.74 INCHES
WATCHES AND WARNINGS
There are no coastal watches or warnings in effect.
Interests in the northern Leeward Islands should monitor the progress of this system.
DISCUSSION AND 48-HOUR OUTLOOK
At 1100 AM AST (1500 UTC), the eye of Hurricane Irma was located near latitude 18.8 North, longitude 43.3 West. Irma is moving toward the west near 15 mph (24 km/h) and a turn toward the west-southwest at a slightly slower rate of speed during the next two days.
Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours.
Irma is a small hurricane. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km).
The estimated minimum central pressure is 973 mb (28.74 inches).
HAZARDS AFFECTING LAND
Source: The Daily Herald https://www.thedailyherald.sx/islands/69153-hurricane-irma-advisory-number-13