Invest 96 has now turned into Tropical Depression 4, and is expected to become a tropical storm by Sunday. Next complete adivisory will come at 11 p.m.

Tropical Depression Four advisory

11 p.m. - Now classified as Tropical Depression, with an 80 percent chance of developing into a tropical storm by Monday.

Position: 22.3 north, 72.6 west

Watches and Warnings

Southeastern Bahamas including the Acklins, Crooked Island Long Cay, The Inaguas, Mayaguana and the Ragged Islands.

The Turks and Caicos Islands

Central Bahamas including Cat Island, Exumas, Long Island, Rum Cay and San Salvador.

Interests in the Northwestern Bahamas should monitor the progress of this system -- a tropical storm watch will likely be required for the area on Sunday morning.

Discussion and 48-hour outlook

At 5 p.m. the center of Tropical Depression four was located near latitude 21.8 north, longitude 72.3 west. The depression is moving toward the northwest around 12 miles per hour. A northwestward motion is expected to continue to Saturday night and Sunday foolowed by a turn toward the north-northwest and a decrease in forward speed Sunday night and Monday. On the forecast track, the center of the depression will continue moving near or over the Turks and Caicos and Southeastern Bahamas tonight and pass near or over portions of the Central Bahamas on Sunday and Monday.

Maximum sustained winds are near 35 miles per hour with higher gusts. Some strengthening is forecast during the next 48 hours and the depression is forecast to become a tropical storm by Sunday.The estimated minimum central pressure based on surface data from Providenciales in the Turks and Caicos islands is 1005 MB, or 29.68 inches.

Hazards affecting land

Rainfall -- the depression is expected to produce rainfall totals of 4 to 8 inches over the southeaster Bahamas, Turks and Caicos and the Central Bahamas through Tuesday. Isolated amounts around 12 inches are possible. Total rainfall of up to 12 inches are possible in parts of Hispaniola, where these rains could produce life-threatening flash floods and mudslides. Tropical storm conditions are expected to spread northward across the warning area through Sunday night.

Next advisory

Next complete advisory: 5 a.m.