448 WTPZ34 KNHC 122044 TCPEP4 BULLETIN Potential Tropical Cyclone Four-E Advisory Number 1 NWS National Hurricane Center Miami FL EP042025 300 PM CST Thu Jun 12 2025 ...DISTURBANCE HAS THE POTENTIAL TO BRING TROPICAL STORM FORCE WINDS TO COASTAL SOUTHWESTERN MEXICO... ...TROPICAL STORM WATCHES ISSUED FOR MEXICO... SUMMARY OF 300 PM CST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...11.3N 100.2W ABOUT 450 MI...725 KM SSE OF ZIHUATANEJO MEXICO MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Tropical Storm Watch for the coast of Mexico from Tecpan De Galeana to Manzanillo. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Tecpan De Galeana to Manzanillo A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 300 PM CST (2100 UTC), the disturbance was centered near latitude 11.3 North, longitude 100.2 West. The system is moving toward the west-northwest near 7 mph (11 km/h). A west-northwest to northwestward motion is expected during the next few days. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Strengthening is expected during the next few days, and the system is forecast to become a tropical storm on Friday and continue strengthening as it moves parallel to the coast of southwestern Mexico. * Formation chance through 48 hours...high...90 percent. * Formation chance through 7 days...high...90 percent. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Potential Tropical Cyclone Four-E can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP4 and WMO header WTPZ44 KNHC. RAINFALL: Rainfall totals of 2 to 4 inches, with localized amounts up to 6 inches, are possible across portions of the Mexican states of Guerrero, Michoacan, and Colima through this weekend. This rainfall may lead to areas of flooding and mudslides. For a complete depiction of forecast rainfall associated with Potential Tropical Cyclone Four-E, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_ep4.shtml?rainqpf WIND: Tropical storm conditions are possible within the watch area by Saturday. SURF: Swells generated by Potential Tropical Cyclone Four-E will affect portions of the coast of southwestern Mexico during the next few days. 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 600 PM CST. Next complete advisory at 900 PM CST. $$ Forecaster Kelly
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