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BULLETIN
TROPICAL STORM IAN ADVISORY NUMBER 12
NWS NATIONAL HURRICANE CENTER MIAMI FL AL102016
500 AM AST THU SEP 15 2016
...IAN ACCELERATING NORTH-NORTHEASTWARD...
...EXPECTED TO REMAIN A POWERFUL CYCLONE AS IT BECOMES
POST-TROPICAL...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
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LOCATION...35.5N 52.4W
ABOUT 745 MI...1195 KM ENE OF BERMUDA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
WATCHES AND WARNINGS
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There are no coastal watches or warnings in effect.
DISCUSSION AND 48-HOUR OUTLOOK
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At 500 AM AST (0900 UTC), the center of Tropical Storm Ian was
located near latitude 35.5 North, longitude 52.4 West. Ian is
moving toward the north-northeast near 20 mph (31 km/h). A turn
toward the northeast and an increase in forward speed are expected
today, followed by a further increase in forward speed tonight and
Friday.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Some strengthening is forecast during the next 48 hours, and Ian is
expected to remain a powerful cyclone while it loses tropical
characteristics by Friday.
Tropical-storm-force winds extend outward up to 175 miles (280 km)
from the center.
The estimated minimum central pressure is 998 mb (29.47 inches).
HAZARDS AFFECTING LAND
----------------------
None.
NEXT ADVISORY
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Next complete advisory at 1100 AM AST.
$$
Forecaster Brennan
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