000 WTNT32 KNHC 180840 TCPAT2 BULLETIN TROPICAL STORM KARL ADVISORY NUMBER 16 NWS NATIONAL HURRICANE CENTER MIAMI FL AL122016 500 AM AST SUN SEP 18 2016 ...KARL FORECAST TO STRENGTHEN ON MONDAY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.7N 42.3W ABOUT 1285 MI...2070 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 AM AST (0900 UTC), the center of Tropical Storm Karl was located near latitude 17.7 North, longitude 42.3 West. Karl is moving toward the west near 13 mph (20 km/h). A westward to west-northwestward motion with some increase in forward speed is expected during the next couple of days. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Karl is forecast to begin to strengthen on Monday. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Blake