000 WTPZ35 KNHC 240850 TCPEP5 BULLETIN Tropical Storm John Advisory Number 8 NWS National Hurricane Center Miami FL EP102024 300 AM CST Tue Sep 24 2024 ...JOHN NOW A TROPICAL STORM AND MOVING NORTHWESTWARD... ...LIFE-THREATENING FLASH FLOODING TO CONTINUE ALONG SOUTHERN MEXICAN COAST FOR THE NEXT FEW DAYS... SUMMARY OF 300 AM CST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...17.3N 100.0W ABOUT 115 MI...185 KM NW OF PUNTA MALDONADO MEXICO ABOUT 30 MI...45 KM NNW OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has changed the the Hurricane Warning from east of Acapulco to Lagunas de Chacahua to a Tropical Storm Warning. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * East of Acapulco to Lagunas de Chacahua A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case over the next few hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 300 AM CST (0900 UTC), the center of Tropical Storm John was located near latitude 17.3 North, longitude 100.0 West. John is moving toward the northwest near 8 mph (13 km/h). A very slow motion westward followed by very little motion is forecasted over the next several days. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Additional rapid weakening is anticipated, and John is expected to become a tropical depression later today. Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center. The estimated minimum central pressure is 990 mb (29.24 inches). HAZARDS AFFECTING LAND ---------------------- Key Messages for John 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, Hurricane 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 Hurricane John, please see the National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_ep5.shtml?rainqpf WIND: Tropical Storm conditions are ongoing within portions of the tropical storm warning area and should continue for 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. SURF: Swells associated with John are forecast to continue affecting the coast of southern Mexico during the next couple of days, with the potential for dangerous surf and rip currents much of the week. Please see local statements for more information. NEXT ADVISORY ------------- Next intermediate advisory at 600 AM CST. Next complete advisory at 900 AM CST. $$ Forecaster Papin
Tropical Storm John Public Advisory
24
Sep