NHC Tracking 2 Tropical Waves In Atlantic

In addition to Erin, the National Hurricane Center is keeping a close eye on two tropical waves in the Atlantic. The tropical wave directly behind Erin could develop into a tropical depression by the end of the week as it passes over or near the Leeward Islands on Friday. The tropical wave near the Cabo Verde Islands, designated Invest 99L, also has a chance of development over the next few days.