Tropical Storm Flossie developed early Sunday, June 30, in the eastern Pacific Ocean, just off the southern coast of Mexico, and is expected to strengthen into a hurricane by Tuesday, July 2, according to the National Hurricane Center (NHC).
Overnight, Tropical Depression Six-E intensified, with maximum sustained winds now reaching 35 mph (56 km/h) and stronger gusts reported. The NHC expects gradual strengthening throughout Sunday, followed by a period of steady to rapid intensification early this week. Flossie is forecast to become the sixth named storm of the 2025 Eastern Pacific hurricane season.
The “E” designation marks the storm’s location in the Eastern Pacific basin, while the number reflects the order of development during the season.
A Tropical Storm Watch is currently in effect for parts of the southwestern coast of Mexico, from Zihuatanejo to Manzanillo, where tropical storm conditions could begin developing over the coming days.
Meteorologists are closely monitoring the system as warm Pacific waters provide the thermal energy needed to support rapid cyclonic development.
