####018004258#### WTPZ33 KNHC 250556 TCPEP3 BULLETIN Hurricane Otis Intermediate Advisory Number 12A NWS National Hurricane Center Miami FL EP182023 100 AM CDT Wed Oct 25 2023 ...EYE OF CATEGORY 5 HURRICANE OTIS ABOUT TO MAKE LANDFALL NEAR ACAPULCO MEXICO... ...CATASTROPHIC DAMAGE LIKELY WHERE THE CORE MOVES ONSHORE... SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...16.7N 99.8W ABOUT 15 MI...25 KM SSE OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...165 MPH...270 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...923 MB...27.26 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Punta Maldonado westward to Zihuatanejo A Hurricane Watch is in effect for... * Lagunas de Chacahua to Punta Maldonado A Tropical Storm Warning is in effect for... * Lagunas de Chacahua to Punta Maldonado A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A Hurricane Watch means that hurricane conditions are possible within the watch area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 AM CDT (0600 UTC), the center of Hurricane Otis was located near latitude 16.7 North, longitude 99.8 West. Otis is moving toward the north-northwest near 10 mph (17 km/h), and this general motion is expected during the next day or so. On the forecast track, Otis will make landfall near Acapulco, Mexico within the next hour. Otis is then forecast to move inland over southern Mexico during the next day or so. Maximum sustained winds are near 165 mph (270 km/h) with higher gusts. Otis is a category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Otis is forecast to remain a category 5 hurricane through landfall. Rapid weakening is then expected once Otis moves inland over the higher terrain of Mexico. Otis will likely dissipate over southern Mexico on Wednesday night. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km). The estimated minimum central pressure is 923 mb (27.26 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Otis can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP3 and WMO header WTPZ43 KNHC and on the web at hurricanes.gov/text/MIATCDEP3.shtml WIND: Hurricane condition are occurring within portions of the hurricane warning area and they will spread inland through this morning, with extremely destructive winds near the core. Winds affecting the upper floors of high-rise buildings will be significantly stronger than those near ground level. Tropical storm conditions will continue within portions of the warning areas through today. STORM SURGE: A potentially catastrophic storm surge is expected to produce life-threatening coastal flooding near and to the east of where the center makes landfall. Near the coast, the surge will be accompanied by large and destructive waves. RAINFALL: Otis is expected to produce rainfall totals of 8 to 16 inches with maximum amounts of 20 inches through Thursday across Guerrero and the western coastal sections of Oaxaca. This rainfall will produce flash and urban flooding, along with mudslides in areas of higher terrain. SURF: Swells generated by Otis will affect portions of the southern coast of Mexico during the next day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 AM CDT. $$ Forecaster Brown/Kelly