Marty strengthened into a hurricane for a time on Monday before weakening to a tropical storm Monday night.
Regardless of weakening, Marty will continue to spread rain and gusty winds across parts of southwestern Mexico through Wednesday, elevating the threat for flash flooding and mudslides.
The tropical storm is spinning over water more than sufficient for strengthening but will battle disruptive wind shear as it meanders just off the coast of southwestern Mexico through the middle of the week.
AccuWeather Senior Meteorologist Rob Miller has put the corridor from Acapulco to Puerto Angel on alert for additional heavy rainfall through Wednesday. However, those around Manzanillo should also be prepared for localized downpours as tropical moisture helps fuel daily showers and thunderstorms.
Rainfall of 25-75 mm (1-3 inches) has already been reported from Puerto Vincente southward through Acapulco. An additional 25-75 mm (1-3 inches) is possible in these areas through Wednesday resulting in travel disruptions and a heightened risk for flash flooding and mudslides.
“The main concern is that Marty will be moving so slowly,” stated Miller. That could lead to a prolonged duration of rain for a given location, significantly putting those communities at risk for flooding and mudslides.
The higher terrain of Guerrero state will likely receive a total of 150-300 mm (6-12 inches) of rain with locally higher amounts possible.