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Latest summary of impacts by Irma: some good info for various coast locations in Florida
Irma Producing Hurricane-Force Winds Across Portions of Central Florida
Key Points
Reported Observations
Irma Producing Hurricane-Force Winds Across Portions of Central Florida
Key Points
- At 11:00 pm ET, the center of Irma was located near latitude 27.5 north and longitude 81.9 west.
- The hurricane is moving 350 at 14 mph.
- A turn toward the north-northwest and then northwest at a faster forward speed is expected during the next day or so.
- On the forecast track, the center of Irma will continue to move over the western Florida peninsula through Monday morning and then into the southeastern United States late Monday and Tuesday.
- The hurricane is moving 350 at 14 mph.
- Maximum sustained winds are near 100 mph, with higher gusts.
- Additional weakening is forecast, and Irma is expected to become a tropical storm over far northern Florida or southern Georgia on Monday.
- Additional weakening is forecast, and Irma is expected to become a tropical storm over far northern Florida or southern Georgia on Monday.
- Irma has a very large wind field.
- Hurricane-force winds extend outward up to 80 miles (130 km) from the center, and tropical-storm-force winds extend outward up to 415 miles (665 km).
- The minimum central pressure of the storm is 952 mb (28.12 inches)
Reported Observations
- WFO Key West reported a preliminary storm surge measurement of 14 feet at Cudjoe Key.
- WFO Key West reported a wind gust of 120 mph at 9 am this morning at Big Pine Key.
- A wind gust of 142 mph was reported at the Naples Municipal Airport shortly early Sunday evening.
- Shortly before 6pm this evening, a NOAA tide gauge in Naples just measured a water level of 2.2 feet above Mean Higher High Water, which is a 7 foot increase over the past hour and a half.
- Other preliminary peak wind gusts as of 4pm ET Sunday, Sep 10:
- 131 mph – Naples Municipal Airport
- 130 mph – Marco Island
- 122 mph – Collier County Emergency Management
- 109 mph – Pembroke Pines
- 96 mph – Smith Shoal Light
- 94 mph – FAA Station, Miami Int’l Airport
- 94 mph – Key West International Airport
- 92 mph – Molasses Reef
- 89 mph – Key West National Weather Service
- 88 mph – Islamorada
Summary of Watches and Warnings for the U.S. or its Territories
- 131 mph – Naples Municipal Airport
- A Storm Surge Warning is in effect for...
- South Santee River southward to Jupiter Inlet
- North Miami Beach southward around the Florida peninsula to the Ochlockonee River in Florida
- Florida Keys
- Tampa Bay
- South Santee River southward to Jupiter Inlet
- A Hurricane Warning is in effect for...
- North of Jupiter Inlet to Fernandina Beach
- North of Bonita Beach to Indian Pass
- Lake Okeechobee
- North of Jupiter Inlet to Fernandina Beach
- A Hurricane Watch is in effect for...
- North of Fernandina Beach in Florida to Edisto Beach
- North of Fernandina Beach in Florida to Edisto Beach
- A Tropical Storm Warning is in effect for...
- Jupiter Inlet southward around the Florida peninsula to Bonita Beach
- Florida Keys
- Florida Bay
- West of Indian Pass to the Okaloosa/Walton County Line
- North of Fernandina Beach in Florida to South Santee River
Hazards Affecting the U.S. or its Territories
- Jupiter Inlet southward around the Florida peninsula to Bonita Beach
- 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...4 to 6 ft
- Captiva to Ana Maria Island...3 to 5 ft
- North Miami Beach to Cape Sable, including the Florida Keys...3 to 5 ft
- Ana Maria Island to Clearwater Beach, including Tampa Bay...2 to 4 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...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.
- Cape Sable to Captiva...4 to 6 ft
- Wind: Hurricane conditions are continuing across portions of the central Florida Peninsula. Winds affecting the upper floors of high-rise buildings will be significantly stronger than those near ground level. Tropical storm conditions will continue across portions of southern Florida and the Florida Keys through Monday morning. Tropical storm and hurricane conditions are expected to spread northward across the remainder of the warning areas through Monday.
- Rainfall: Irma is expected to produce the following rain accumulations through Wednesday:
- Western Bahamas...Additional 2 to 3 inches.
- The Florida Keys...additional 1 inch, with possible storm total amounts from 15 to 20 inches, isolated 25 inches.
- Western Florida peninsula...10 to 15 inches, isolated 20 inches.
- Eastern Florida peninsula and southeast Georgia...8 to 12 inches, isolated 16 inches.
- The rest of Georgia, the eastern Florida Panhandle, southern and western South Carolina, and western North Carolina...3 to 8 inches, isolated 12 inches.
- Southern Tennessee, northern Mississippi and much of Alabama...2 to 5 inches.
In all areas this rainfall may cause life-threatening flash floods and, in some areas, mudslides.
- Western Bahamas...Additional 2 to 3 inches.
- Tornadoes: A few tornadoes are possible across northeast Florida and southeast portions of Georgia and South Carolina through Monday night.
- 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.