####018003820#### WTPZ33 KNHC 250845 TCPEP3 BULLETIN Hurricane Otis Advisory Number 13 NWS National Hurricane Center Miami FL EP182023 400 AM CDT Wed Oct 25 2023 ...DAMAGING HURRICANE-FORCE WINDS SPREADING INLAND OVER SOUTHERN MEXICO... ...HEAVY RAINFALL AND FLASH FLOODING OCCURRING OVER PORTIONS OF SOUTHERN MEXICO... SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.2N 100.1W ABOUT 25 MI...40 KM NNW OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...948 MB...28.00 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has discontinued the Tropical Storm Warning and Hurricane Watch east of Punta Maldonado. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Punta Maldonado westward to Zihuatanejo A Hurricane Warning means that hurricane 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 400 AM CDT (0900 UTC), the center of Hurricane Otis was located near latitude 17.2 North, longitude 100.1 West. Otis is moving toward the north-northwest near 10 mph (17 km/h), and this general motion is expected through early tonight. On the forecast track, the center of Otis will move farther inland over southern Mexico through tonight. Maximum sustained winds have decreased to near 130 mph (215 km/h) with higher gusts. Otis is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Rapid weakening is expected as Otis moves inland over the higher terrain of Mexico. Otis will likely dissipate over southern Mexico tonight. 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 948 mb (28.00 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: Damaging hurricane-force winds will spread inland over southern Mexico this morning with extremely destructive winds near the core during the next few hours. Wind speeds atop and on the windward sides of hills and mountains are often up to 30 percent stronger than the near-surface winds indicated in this advisory, and in some elevated locations could be even greater. STORM SURGE: Life-threatening storm surge will continue along the coast of southern Mexico this morning in areas of onshore winds within the hurricane warning. Near the coast, the surge will be accompanied by large and dangerous 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 intermediate advisory at 700 AM CDT. Next complete advisory at 1000 AM CDT. $$ Forecaster Brown