436 WTPZ31 KNHC 010853 TCPEP1 BULLETIN Tropical Storm Sergio Advisory Number 8 NWS National Hurricane Center Miami FL EP212018 300 AM MDT Mon Oct 01 2018 ...SERGIO STRENGTHENS SLIGHTLY OVER THE OPEN PACIFIC OCEAN... ...EXPECTED TO BECOME A HURRICANE LATER TODAY... SUMMARY OF 300 AM MDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...11.5N 108.6W ABOUT 590 MI...950 KM SSW OF MANZANILLO MEXICO ABOUT 790 MI...1275 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...995 MB...29.39 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 AM MDT (0900 UTC), the center of Tropical Storm Sergio was located near latitude 11.5 North, longitude 108.6 West. Sergio is moving toward the west near 14 mph (22 km/h), and this general motion is forecast to continue through tonight. A turn toward the west-northwest is expected on Tuesday. Maximum sustained winds have increased to near 70 mph (110 km/h) with higher gusts. Strengthening is forecast during the next 48 hours, and Sergio is expected to become a hurricane later today, and a major hurricane by Wednesday morning. Tropical-storm-force winds extend outward up to 125 miles (205 km) from the center. The estimated minimum central pressure is 995 mb (29.39 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 900 AM MDT. $$ Forecaster Stewart