425 WTNT33 KNHC 122041 TCPAT3 BULLETIN Hurricane Helene Advisory Number 22 NWS National Hurricane Center Miami FL AL082018 500 PM AST Wed Sep 12 2018 ...HELENE HEADING NORTHWARD ACROSS THE EASTERN ATLANTIC... ...INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...21.4N 36.7W ABOUT 910 MI...1465 KM WNW OF THE CABO VERDE ISLANDS ABOUT 1285 MI...2065 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...N OR 350 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...980 MB...28.94 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Azores should monitor the progress of Helene. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Hurricane Helene was located near latitude 21.4 North, longitude 36.7 West. Helene is moving toward the north near 14 mph (22 km/h). A turn toward the northeast with an increase in forward speed is expected during the next few days. Maximum sustained winds have decreased to near 85 mph (140 km/h) with higher gusts. Gradual weakening is forecast over the next couple of days, and Helene is expected to become a tropical storm on Thursday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 980 mb (28.94 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Avila