Issued at 600 PM CST Sun Jun 29 2025
000 WTPZ31 KNHC 292342 TCPEP1 BULLETIN Tropical Storm Flossie Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL EP062025 600 PM CST Sun Jun 29 2025 ...FLOSSIE EXPECTED TO BRING AREAS OF HEAVY RAINS ALONG THE COAST OF SOUTHWESTERN MEXICO... SUMMARY OF 600 PM CST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...13.7N 100.7W ABOUT 225 MI...360 KM SSW OF ACAPULCO MEXICO ABOUT 435 MI...700 KM SE OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Southwest coast of Mexico from Zihuatanejo to Cabo Corrientes A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in southwestern Mexico should monitor the progress of Tropical Storm Flossie. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 600 PM CST (0000 UTC), the center of Tropical Storm Flossie was located near latitude 13.7 North, longitude 100.7 West. Flossie is moving toward the west-northwest near 8 mph (13 km/h). A west-northwest to northwestward motion should continue over the next few days. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Steady strengthening is forecast during the next few days, and the system is expected to become a hurricane late Monday or Tuesday. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Flossie can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP1 and WMO header WTPZ41 KNHC. RAINFALL: Tropical Storm Flossie is expected to produce rainfall totals of 3 to 6 inches, with isolated maximum totals of 10 inches, across portions of the Mexican states of Oaxaca, Guerrero, Michoacán, Colima, and Jalisco through early this week. This rainfall may lead to areas of life-threatening flooding and mudslides, especially in areas of steep terrain. For a complete depiction of forecast rainfall associated with Tropical Storm Flossie, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_ep1.shtml?rainqpf WIND: Tropical storm conditions are possible along the coast within the watch area late Monday and Tuesday. SURF: Swells generated by Flossie 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 complete advisory at 900 PM CST. $$ Forecaster Bucci