Sunday, September 27, 2015

Tropical Storm Marty to Threaten Southwest Mexico

By , Senior Meteorologist
September 27,2015; 9:04PM,EDT
 
 
Tropical Storm Marty formed in the eastern Pacific on Saturday night and will threaten southwest Mexico with wind and rain this week.
A low pressure system located about 280 miles southwest of Acapulco, Mexico strengthened into Tropical Depression 17-E Saturday afternoon PDT and then tropical storm Marty Saturday night PDT. In addition to 17-E, another area is being monitored just south of Guatemala, though development is not imminent with that system.

Marty is spinning over water more than sufficient for strengthening but will battle disruptive wind shear as it tracks slowly north toward the southwest Mexican coast.
Satellite Loop of Tropical Storm Marty and thumbnail images (Image/NOAA).
With the low heading northward, AccuWeather Senior Meteorologist Rob Miller has put the corridor from Acapulco to Puerto Angel on alert for potential impacts this week. However, those to around Manzanillo should also monitor the low in the event it turns to the northwest later in the week after approaching the Acapulco-Puerto Angel area.
Seas will build as the tropical cyclone strengthens and pushes northward over the next few days. How strong it becomes will determine the extend of its damaging winds. Heavy rain, however, will accompany the cyclone regardless of intensity.
Marty may strengthen into a hurricane early in the week while still well offshore of Mexico. However, the system is expected to weaken into a tropical storm once again as it nears the coast due to stronger wind shear.
Weather Outlook Across the World
"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.
RELATED:
AccuWeather Hurricane Center
Gulf of Mexico May Yield Tropical System Prior to September's End
Mexico Weather Center

AccuWeather will continue to provide updates on Marty and more details to the impacts the Mexican coast may face.
Content contributed by AccuWeather Meteorologist Andy Mussoline
 

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