000 WTPZ35 KNHC 271432 TCPEP5 BULLETIN Tropical Storm John Advisory Number 19 NWS National Hurricane Center Miami FL EP102024 900 AM CST Fri Sep 27 2024 ...JOHN ABUTTING THE COAST... ...CATASTROPHIC FLASH FLOODING AND MUDSLIDES CONTINUE OVER PORTIONS OF SOUTHERN AND SOUTHWESTERN MEXICO... SUMMARY OF 900 AM CST...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...18.1N 103.0W ABOUT 55 MI...85 KM W OF LAZARO CARDENAS MEXICO ABOUT 105 MI...170 KM SE OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NNW OR 330 DEGREES AT 3 MPH...6 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Punta Maldonado to Manzanillo A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 12 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 900 AM CST (1500 UTC), the center of Tropical Storm John was located near latitude 18.1 North, longitude 103.0 West. John is moving toward the north-northwest near 3 mph (6 km/h) and this motion is expected to continue through today. On the forecast track, the center of John is forecast to move along the coast or just inland of southwestern Mexico later today and tonight. Maximum sustained winds have decreased to near 60 mph (95 km/h) with higher gusts. Gradual weakening is expected today, with a faster rate of weakening forecast by tonight while the center begins to interact with the higher terrain of southwestern Mexico. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Through Saturday, Tropical Storm John is expected to produce additional rainfall amounts of 4 to 8 inches with locally over 10 inches across portions of the Mexican States of Guerrero and Michoacán. Additional rainfall of 2 to 4 inches with locally over 6 inches are expected today across the Mexican States of Colima and western Oaxaca.the Sierra Madre Del Sur mountains For a complete depiction of forecast rainfall associated with John, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_ep5.shtml?rainqpf STORM SURGE: Storm surge is likely to produce coastal flooding near and to the east of where the center makes landfall. Near the coast, the surge will be accompanied by large waves. WIND: Tropical storm conditions are expected to continue across coastal portions of the Tropical Storm Warning area through today. SURF: Swells associated with John are forecast to continue to affect the coast of southern and southwestern Mexico through tonight into Saturday, with the potential for dangerous surf and rip currents. Please see local statements for more information. NEXT ADVISORY ------------- Next intermediate advisory at 1200 PM CST. Next complete advisory at 300 PM CST. $$ Forecaster Kelly
Tropical Storm John Public Advisory
27
Sep