A tropical wave, Invest 98L, in the Caribbean Sea has a 90% chance of becoming a tropical depression and likely Melissa by tomorrow.

The National Hurricane Center is monitoring Invest 98, a tropical wave heading towards the Caribbean Sea with a 30% chance of development in the next 2 days and a 70% chance in the next week, which could potentially develop into a tropical depression and become the named storm Melissa.

The National Hurricane Center is tracking a tropical wave in the Caribbean Sea. Here's what to know about whether it will impact the U.S.

Tropical Depression Nine formed Saturday in the Atlantic and is expected to strengthen into Tropical Storm Imelda.

A strong tropical disturbance churning through the central Atlantic – designated Invest 95L – continues to organize and is on the cusp of becoming a tropical depression or named storm. The next name on the list is Jerry.

The Leeward Islands, including the U.S. Virgin Islands, should monitor the progress of a weather system moving across the Atlantic, as the National Hurricane Center (NHC) has given the disturbance — designated Invest 95L — an 80 percent chance of development within 48 hours and a 90 percent chance within seven days.

The National Hurricane Center has bumped up the odds that at least a tropical depression will form in the Caribbean this week. They now have chances in the high-medium range, which is in line with the consensus of the computer forecasts.

The National Hurricane Center designated a tropical wave in the Atlantic as Invest 98L on Saturday as it slowly crept toward the Caribbean.