Tropical Storm Erika formed on Monday night and will track toward the Leeward Islands through the middle of the week.
As Tropical Rainstorm Danny tracks across the northern Caribbean islands, Erika will take a track slightly farther north and will bring another round of rainfall.
This system will be steered westward by a large dome of high pressure across the Atlantic during much of this week.
“This high is expected to guide Erika on a west-northwest course through Thursday,” said AccuWeather Hurricane Expert Dan Kottlowski.
Erika is located about 730 miles east of the Leeward Islands.
“Erika will be moving through an environment with warm waters and generally low wind shear,” AccuWeather Meteorologist Robert Richards said.
Tropical systems are most likely to strengthen in areas of weak wind shear. If wind shear is too strong, the system becomes disorganized and weakens.
http://www.accuweather.com/en/weather-news/tropical-storm-erika-born-in-t/52021729