000 WTNT33 KNHC 290837 TCPAT3 BULLETIN Tropical Storm Rina Advisory Number 4 NWS National Hurricane Center Miami FL AL182023 500 AM AST Fri Sep 29 2023 ...RINA STRENGTHENS SLIGHTLY... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...18.9N 46.6W ABOUT 1080 MI...1740 KM E OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NNW OR 340 DEGREES AT 5 MPH...7 KM/H MINIMUM CENTRAL PRESSURE...1003 MB...29.62 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 Tropical Storm Rina was located near latitude 18.9 North, longitude 46.6 West. Rina is moving toward the north-northwest near 5 mph (7 km/h). A northwestward to west-northwestward motion, with a slight increase in forward speed, is expected for the next few days. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Slight strengthening is forecast later today, followed by little change in intensity through Saturday. Gradual weakening is expected to begin Sunday. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 1003 mb (29.62 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Bucci