1. Heavy rainfall will continue across the Cayman Islands, portionsof Cuba and Jamaica, and will spread north into the Bahamas andsouthern Florida. This rain may result in significant, life- threatening flash flooding and river flooding in Cuba. Flashand urban flooding will also be possible for the Cayman Islands,Jamaica, the Bahamas and southern Florida.

2. Tropical storm conditions are expected today and Sunday inportions of the Cayman Islands, Cuba, and the northwestern Bahamas,where a Tropical Storm Warning is in effect.

3. Tropical storm conditions are expected by late Sunday in theFlorida Keys and along portions of the southeast Florida coast,where a Tropical Storm Warning is in effect. Tropical stormconditions are possible elsewhere in portions of southern andcentral Florida beginning Sunday night, where a Tropical Storm Watchis in effect. Additional Tropical Storm Warnings will likely beneeded later today.

CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for...
- The Cayman Islands
- The Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus, Villa Clara, Cienfuegos, and Matanzas.
- Northwestern Bahamas, including the Abacos, Andros Island, Berry Islands, Bimini, Eleuthera, Grand Bahama Island, and New Providence
- Florida coast from Golden Beach to Chokoloskee, including Florida Bay
- The Florida Keys from Ocean Reef to the Dry Tortugas A Tropical Storm Watch is in effect for...
- The Cuban provinces of La Habana, Artemisa, Mayabeque, Pinar del Rio, and the Isle of Youth
- Florida east coast north of Golden Beach Florida to the Brevard/Volusia county line
- Florida west coast north of Chokoloskee to Englewood
- Lake Okeechobee A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Cuba and the Florida peninsula should monitor the progress of this system as additional Tropical Storm Watches or Warnings could be required for some of these areas later today. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service.

Key messages for Eta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml. RAINFALL: Eta is expected to produce the following rainfall amounts through Thursday morning: Jamaica: An additional 2 to 4 inches (50 to 125 mm), isolated maximum storm totals of 15 inches (380 mm). The Cayman Islands into portions of Cuba: an additional 5 to 10 inches (200 to 400 mm), isolated maximum storm totals of 25 inches (650 mm). The Bahamas and portions of the central and southern Florida peninsula, including the Keys: 5 to 10 inches (125 to 255 mm), isolated maximum totals of 15 inches (380 mm). Significant, lifethreatening flash and river flooding will be possible in Cuba, along with landslides in areas of higher terrain. Flash and urban flooding will also be possible for the Cayman Islands, Jamaica, the Bahamas, and Southern Florida. STORM SURGE: A dangerous storm surge will raise water levels by as much as 2 to 4 feet above normal tide levels along the coast of Cuba near and to the east of where the center makes landfall. Near the coast, the surge will be accompanied by large and destructive waves. The combination of a 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 could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Marco Island, FL to North Miami Beach, FL including Biscayne Bay...23 ft Florida Keys...23 ft Flagler/Volusia County Line, FL to Altamaha Sound, GA...23 ft North Miami Beach, FL to Flagler/Volusia County Line, FL...12 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surgerelated 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: Tropical storm conditions are expected in the Cayman Islands this afternoon and evening, in the warning area sin Cuba tonight and Sunday, in the northwestern Bahamas on Sunday, and in south Florida and the Florida Keys late Sunday and Sunday night. Tropical storm conditions are possible in the watch area in Cuba tonight and Sunday and in the watch area in Florida by late Sunday or early Monday. TORNADOES: A tornado or two may occur Sunday evening and Sunday night over south Florida and the Keys. SURF: Swells generated by Eta are expected to spread northeastward and affect the Cayman Islands, Jamaica, the southern coast of Cuba, the northwestern Bahamas, and southern Florida and the Florida Keys during the next couple of days. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

At 100 PM EST (1800 UTC), the center of Tropical Storm Eta was located near latitude 20.0 North, longitude 81.1 West. Eta is moving toward the northeast near 17 mph (28 km/h). An eastnortheast to northeast motion is expected through early Sunday. A turn toward the north and northwest are expected by Sunday afternoon. On the forecast track, the center of Eta will move away from the Cayman Islands later today, be near central Cuba tonight and Sunday, and near the Florida Keys or south Florida Sunday night and Monday. Reports from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 60 mph (95 km/h) with higher gusts. Some additional strengthening is expected through Sunday night. Tropicalstormforce winds extend outward up to 80 miles (130 km) from the center. The minimum central pressure reported by the Hurricane Hunter aircraft is 994 mb (29.36 inches).

This special advisory is being issued to update the first 36 h of the intensity forecast of Eta. An Air Force Reserve Hurricane Hunter aircraft found a better defined center north of the Cayman Islands with flight-level and SFMR winds supporting an initial intensity of 50 kt, along with a central pressure of 994 mb. The updated intensity forecast shows a little more intensification during the first 12 h, although it is unclear how much intensification may occur due to strong vertical shear and interaction with a developing upper-level low nearby.No changes were made to the forecast track. The first 36 h of the wind radii were adjusted for the new intensity forecast. Note that this special advisory is being issued in lieu of the 100 PM EST (1800 UTC) intermediate advisory.