ZCZC MIATCPEP5 ALL TTAA00 KNHC DDHHMM CCA BULLETIN Tropical Storm John Intermediate Advisory Number 2A...Corrected NWS National Hurricane Center Miami FL EP102024 1200 AM CST Mon Sep 23 2024 Corrected to add size of tropical storm force winds ...DEPRESSION BECOMES TROPICAL STORM JOHN... ...LIKELY TO BRING LIFE-THREATENING FLOODING TO PORTIONS OF SOUTHERN MEXICO EARLY THIS WEEK... SUMMARY OF 1200 AM CST...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...14.1N 98.5W ABOUT 150 MI...240 KM S OF PUNTA MALDONADO MEXICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...STATIONARY MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Punta Maldonado to Salina Cruz For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM CST (0600 UTC), the center of Tropical Storm John was located near latitude 14.1 North, longitude 98.5 West. The system has been recently drifting northward, but a slow north-northeastward motion is expected to begin later today. A northeastward to east-northeastward motion is then anticipated on Tuesday and Wednesday. On the forecast track, the center of the system is forecast to move near the southern coast of Mexico during the next couple of days. Maximum sustained winds have increased to near 40 mph (65 km/h) with higher gusts. Strengthening is forecast during the next couple of days until landfall. Tropical-storm-force winds extend outward up to 35 miles (55 km/h) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key Messages for the depression can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP5 and WMO header WTPZ45 KNHC and on the web at hurricanes.gov/text/MIATCDEP5.shtml RAINFALL: Through Thursday, John is expected to produce 6 to 12 inches of rain with isolated totals around 15 inches across the coastal areas of Chiapas. In areas along and near the Oaxaca coast to southeast Guerrero, between 10 and 20 inches of rain with isolated totals near 30 inches can be expected through Thursday. For a complete depiction of forecast rainfall associated with John (formerly Tropical Depression Ten-E), please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_ep10.shtml?rainqpf WIND: Tropical storm conditions are possible within portions of the watch area beginning on Tuesday. SURF: Swells associated with John are forecast to begin to affect the coast of southern Mexico later today, with the potential for dangerous surf and rip currents much of the week. Please see local statements for more information. NEXT ADVISORY ------------- Next complete advisory at 300 AM CST. $$ Forecaster Blake NNNN
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