ZCZC MIATCPAT3 ALL TTAA00 KNHC DDHHMM BULLETIN Hurricane Lee Advisory Number 20 NWS National Hurricane Center Miami FL AL132023 500 AM AST Sun Sep 10 2023 ...LEE SLOWING DOWN OVER THE SOUTHWESTERN ATLANTIC... ...HAZARDOUS BEACH CONDITIONS EXPECTED TO SPREAD THROUGH THE WESTERN ATLANTIC DURING THE WEEK... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...21.4N 60.5W ABOUT 280 MI...450 KM NE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...958 MB...28.29 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 AM AST (0900 UTC), the center of Hurricane Lee was located near latitude 21.4 North, longitude 60.5 West. Lee is moving toward the west-northwest near 9 mph (15 km/h). A slower west-northwestward motion is expected during the next few days. On the forecast track, Lee is expected to pass well north of the northern Leeward Islands, the Virgin Islands, and Puerto Rico into early next week. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Some strengthening is forecast during the next couple of days, followed by gradual weakening. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 160 miles (260 km). The estimated minimum central pressure based on measurements from the Air Force Reserve Hurricane Hunter is 958 mb (28.29 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Lee can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC and on the web at hurricanes.gov/text/MIATCDAT3.shtml SURF: Swells generated by Lee are affecting portions of the Lesser Antilles, and are spreading westward to the British and U.S. Virgin Islands, Puerto Rico, Hispaniola, the Turks and Caicos Islands, the Bahamas, and Bermuda over the remainder of this weekend. These swells are likely to cause life-threatening surf and rip current conditions. Dangerous surf and rip currents are expected to begin along most of the U.S. East Coast tomorrow and worsen through next week. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Bucci NNNN