IRMA CONTINUES TO WEAKEN AS THE CENTER MOVES ALONG THE NORTHWESTERN COAST OF THE FLORIDA PENINSULA...
HAZARDS AFFECTING LAND ----------------------
STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline.
The water is expected to reach the following HEIGHTS ABOVE GROUND if the peak surge occurs at the time of high tide...
Cape Sable to Captiva...2 to 4 ft Captiva to Anna Maria Island...3 to 5 ft North Miami Beach to Cape Sable, including the Florida Keys...1 to 2 ft Anna Maria Island to Clearwater, including Tampa Bay...2 to 4 ft South Santee River to Fernandina Beach...4 to 6 ft Clearwater Beach to Ochlockonee River...4 t 6 ft Fernandina Beach to Jupiter Inlet...3 to 5 ft
The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and destructive waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office.
WIND: Hurricane conditions should continue over portions of the northern Florida peninsula for the next several hours. Tropical storm conditions will continue across other portions of the central and northern Florida peninsula, and spread into the eastern Florida Panhandle and southern Georgia this morning.
Tropical storm and hurricane conditions are expected to spread northward across the remainder of the warning areas through today.
Rainfall: Irma is expected to produce the following rain accumulations through Wednesday:
The Florida Keys and southern Florida peninsula: additional 1 inch.
Central Florida peninsula: additional 1 to 3 inches.
Northern Florida peninsula and southern Georgia: additional 3 to 6 inches with storm total amounts of 8 to 15 inches.
Central Georgia, eastern Alabama and southern South Carolina: 3 to inches, isolated 10 inches.
Central Florida Panhandle, western Alabama, northern Mississippi, southern Tennessee, northern Georgia, northern South Carolina and western North Carolina: 2 to 4 inches.
TORNADOES: A few tornadoes are possible across northeast Florida and southeast portions of Georgia and South Carolina through tonight.
SURF: Swells generated by Irma are affecting the southeast coast of the United States. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office.
WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY:
The Hurricane Warning is changed to a Tropical Storm Warning along the Florida west coast south of Anclote River to Bonita Beach, along the Florida east coast south of Sebastian Inlet to Jupiter Inlet, and for Lake Okeechobee.
The Tropical Storm Warnings are discontinued for the Florida Keys, Florida Bay, the Florida east coast south of Jupiter Inlet, the Florida west coast south of Bonita Beach, and for the Northwestern Bahamas.
The Storm Surge Warning is discontinued for the Florida Keys and the Florida coast from North Miami Beach southward around the Florida peninsula to Cape Sable.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for... * South Santee River southward to Jupiter Inlet * Cape Sable northward to the Ochlockonee River * Tampa Bay
A Hurricane Warning is in effect for... * Sebastian Inlet to Fernandina Beach * Anclote River to Indian Pass
A Hurricane Watch is in effect for... * North of Fernandina Beach to Edisto Beach
A Tropical Storm Warning is in effect for... * West of Indian Pass to the Okaloosa/Walton County Line * North of Fernandina Beach to South Santee River * South of Anclote River to Bonita Beach * South of Sebastian Inlet to Jupiter Inlet * Lake Okeechobee