NHC UPDATE: Hurricane Irma 90 Miles Southeast of Key West, Will Impact Brevard Sunday Night
By Space Coast Daily // September 10, 2017
Tornado watch is in effect for Brevard county
NATIONAL WEATHER SERVICE – Hurricane Irma is centered at 11 p.m. EDT about 90 miles southeast of Key West, moving at 6 miles per hour. Currently, its winds have decreased to 120 mph, which makes it a Category 3 storm.
A turn toward the north-northwest with an increase in forward speed is expected through late Monday.
On the forecast track, the center of Irma is expected to cross the Lower Florida Keys Sunday morning and then move near or along the west coast of Florida Sunday afternoon through Monday morning.
Rain and wind impact of the storm will start in Brevard County Saturday and into Saturday night. The strongest wind will be felt in Central Florida overnight Sunday through midday Monday.
Irma should then move inland over the Florida panhandle and southwestern Georgia Monday afternoon.
Maximum sustained winds are near 120 mph with higher gusts. Irma is a CAT hurricane on the Saffir-Simpson Hurricane Wind Scale.
Irma is forecast to restrengthen a little while it moves through the Straits of Florida and remain a powerful hurricane as it approaches the Florida Keys and the west coast of Florida.
Hurricane-force winds extend outward up to 70 miles from the center, and tropical-storm-force winds extend outward up to 205 miles. The estimated minimum central pressure is 933 mb (27.55 inches).
A Storm Surge Warning is in effect for South Santee River southward to Jupiter Inlet and North Miami Beach southward around the Florida peninsula to the Ochlockonee River, including the Florida Keys and Tampa Bay. A Storm Surge Watch is in effect for north of the Suwanee River to Ochlockonee River.
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…10 to 15 ft
• Captiva to Ana Maria Island…6 to 10 ft
• Card Sound Bridge through Cape Sable, including the Florida Keys…5 to 10 ft
• Ana Maria Island to Clearwater Beach, including Tampa Bay…5 to 8 ft
• North Miami Beach to Card Sound Bridge, including Biscayne Bay…3 to 5 ft
• South Santee River to Fernandina Beach…4 to 6 ft
• Clearwater Beach to Ochlockonee River…4 to 6 ft
• Fernandina Beach to Jupiter Inlet…2 to 4 ft
• North of North Miami Beach to Jupiter Inlet…1 to 2 ft
A Hurricane Warning is in effect for Fernandina Beach southward around the Florida peninsula to Indian Pass, including the Florida Keys, Lake Okeechobee and Florida Bay, as well as the Cuban provinces of Ciego de Avila, Sancti Spiritus, Villa Clara, Matanzas, and La Habana, Andros Island, Bimini, and Grand Bahama. A Hurricane Watch is in effect for north of Fernandina Beach to Edisto Beach.