Eastern Pacific Basin

Eastern Pacific Active Storms

No active storms

Atlantic Basin

Atlantic Active Storms

Hurricane ERIN

10% chance in 48 hours / 60% chance in 7 days

Near the Leeward Islands in the Tropical Atlantic: A tropical wave located several hundred miles east of the Leeward Islands continues to produce a broad area of disorganized showers and thunderstorms. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form by this weekend while it moves near or to the north of the northern Leeward Islands. * Formation chance through 48 hours...low...10 percent. * Formation chance through 7 days...medium...60 percent.

40% chance in 48 hours / 40% chance in 7 days

Eastern Tropical Atlantic (AL99): Satellite-derived surface wind data from earlier today revealed that a concentrated area of showers and thunderstorms located several hundred miles southwest of the Cabo Verde Islands lacks a closed surface circulation. Environmental conditions appear marginally favorable for additional development over the next day or so while the system moves west-southwestward at around 15 mph and a short-lived tropical depression could form. By the end of the week, environmental conditions are expected to become unfavorable for further development. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 7 days...medium...40 percent.