The official National Hurricane Center forecast track has shifted westward in the last 18 hours, with a focus more on the Western Florida Panhandle, Alabama, Mississippi, and Louisiana coasts.
However, it is important to note the computer model guidance is very spread apart, with little agreement and the forecast is considered to have low confidence. It is entirely possible that the forecast track may shift back eastward again today. The forecasts are critical today. It is too soon to let one's guard down just yet.
The Hurricane Watch is extended westward along the Louisiana coast to just east of Morgan City and now includes metropolitan New Orleansand Lake Pontchartrain.
A Hurricane Watch is in effect for east of Morgan City, Louisiana to Indian Pass just south of Port St. Joe, Florida. A Tropical Storm Warning is in effect for the Florida west coast and the eastern Florida Panhandle from north of Bonita beach to Indian Pass, including Tampa Bay.
At 1100 am the center of Tropical Storm Isaac was located near latitude 23. north and longitude 80.8 west.
Isaac ismoving toward the west-northwest near 18 mph. A west-northwestward to northwestward motion is expected during the next 48 hours with a gradual decrease in forward speed.
On the forecast track the center of Isaac is expected to move near or over the lower Florida Keys later today and tonight and move into the eastern Gulf of Mexico on Monday.Maximum sustained winds are near 65 mph with higher gusts. Some strengthening is forecast during the next 48 hours. Isaac is expected to be at or near hurricane strength when it reaches the Florida Keys.
Tropical Storm force winds extend outward up to 205 miles from the center. Tropical storm conditions are occurring in the tropical Storm warning area along the Florida east coast. Tropical Storm conditions are expected to spread northward along the west coast of Florida and into the eastern Florida panhandle in the TropicalStorm warning area tonight and Monday. Hurricane conditions are possible in the Hurricane Watch area alongthe northern gulf coast on Tuesday with tropical storm conditions possible by Monday night.
The message of the day is "wrap it up." Today should be your last day for you to put your plans to action. Go to the store and buy the hurricane supplies you need: food, water, prescriptions, flashlights, batteries, etc. Fill up your gas tank. Take care of your home. Do not wait until the last minute to risk facing long lines, big crowds, and sold out items.