NWS National Hurricane Center Miami FL AL112017
1100 AM AST Wed Aug 30 2017
…IRMA FORMS OVER THE FAR EASTERN ATLANTIC…
…NO IMMEDIATE THREAT TO LAND…
SUMMARY OF 1100 AM AST…1500 UTC…INFORMATION
ABOUT 420 MI…675 KM W OF THE CABO VERDE ISLANDS
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…W OR 280 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…1004 MB…29.65 INCHES
WATCHES AND WARNINGS
There are no coastal watches or warnings in effect.
DISCUSSION AND 48-HOUR OUTLOOK
At 1100 AM AST (1500 UTC), the center of Tropical Storm Irma was located near latitude 16.4 North, longitude 30.3 West. Irma is moving toward the west near 13 mph (20 km/h) and this general motion is expected to continue for the next couple of days.
Satellite wind data indicate that the maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours and Irma could become a hurricane on Friday.
Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center.
The estimated minimum central pressure is 1004 mb (29.65 inches).
HAZARDS AFFECTING LAND
Source: The Daily Herald https://www.thedailyherald.sx/islands/69037-tropical-storm-irma-advisory-number-1