000
WTNT61 KNHC 051147
TCUAT1

Hurricane Irma Tropical Cyclone Update
NWS National Hurricane Center Miami FL       AL112017
745 AM AST Tue Sep 05 2017

...HURRICANE IRMA BECOMES A CATEGORY 5 ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE...

NOAA and Air Force hurricane hunter aircraft data indicate Hurricane
Irma has intensified into an extremely dangerous Category 5
hurricane on the Saffir-Simpson Hurricane Wind Scale with maximum
winds of 175 mph (280 km/h) with higher gusts.  A special advisory
will be issued at 800 AM AST (1200 UTC) in lieu of the scheduled
intermediate advisory for Irma.


SUMMARY OF 745 AM AST...1145 UTC...INFORMATION
----------------------------------------------
LOCATION...16.7N 57.7W
ABOUT 270 MI...440 KM E OF ANTIGUA
ABOUT 280 MI...445 KM ESE OF BARBUDA
MAXIMUM SUSTAINED WINDS...175 MPH...280 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...929 MB...27.44 INCHES

$$
Forecaster Brown/Landsea