Average swells of 6 to 8 ft (1.8 to 2.4 m) affected the region for several days as the storm meandered offshore. Ophelia intensified into a Category 4 hurricane at 0000 UTC on October 2 and simultaneously attained its peak intensity with maximum sustained winds of 140 mph (220 km/h) and a minimum barometric pressure of 940 mb (hPa; 27.76 inHg) as it passed east of Bermuda.  A new low-level circulation developed within the well-organized cloud mass, and the system was once again given a high chance of tropical cyclone formation that evening. The formation of Hurricane Ophelia is attributed in part to a low-latitude tropical wave that emerged off the western coast of Africa in mid-September. The extratropical low was absorbed by a larger weather system by the afternoon hours of the following day. Additionally, a few local events were postponed. , Though the center of Ophelia remained 205 mi (330 km) east of the Lesser Antilles, its outer bands produced heavy rains across the region. Minimal damage and erosion was also reported in Atlantic Canada, when Ophelia hit as a tropical storm in extratropical transition, on September 17 and 18.  Following satellite trends and data from the Advanced Scatterometer, the disturbance was upgraded to a tropical depression at 1800 UTC the following day, while positioned roughly 1300 mi (2090 km) east of the Lesser Antilles, and to a tropical storm six hours later. Ophelia caused some damage and beach erosion along the United States coastline from Florida to North Carolina, with its closest approach occurring on September 14 and 15, with its western eyewall crossing land and the eye remaining just offshore. , An unexpected period of rapid deepening began early on September 30 as a well-defined eye became clearly visible on satellite imagery. The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating based on a hurricane's sustained wind speed. Tracking generally west-northwestward, Ophelia was upgraded to a tropical storm on September 21, and reached an initial peak of 65 mph (100 km/h) on September 22. Hurricane Ophelia has strengthened to a Category 2 storm with 100mph winds, as it makes its way across the Atlantic towards Britain. Six roads on the Burin and Bonavista peninsulas were shut down during the storm; two of the works sustained significant damage. , Tropical Storm Ophelia continued to intensify as it moved west-northwest. The NHC continued to struggle to predict Ophelia, with the forecasts generally calling for a landfall on the east coast of the United States. The forecasters indicated there was a possibility that Ophelia could strengthen further to Category 3 strength, though they felt this was unlikely. , As Hurricane Ophelia moved past Cape Hatteras it turned to the east. Despite the poor presentation on satellite imagery, data from a nearby buoy revealed that the system was stronger than previously thought, with maximum sustained winds of 65 mph (100 km/h) on September 22.  Damage was initially estimated to be about $1.6 billion, but in final analysis was dropped to only $70 million (2005 USD; $77.3 million 2008 USD). , Following Ophelia's upgrade to hurricane status on September 29, the Bermuda Weather Service (BWS) issued a tropical storm watch for the entirety of the island. It was a long-lived storm that was most remembered for its very erratic and extremely slow track off the East Coast of the United States, alternating several times between tropical storm and hurricane intensity. Ophelia caused some damage and beach erosion along the United States coastline from Florida to North Carolina, with its closest approach occurring on September 14 an 2017 (Day 289 - 16th Oct)- The day the sky turned yellow (37061950033).jpg 4,032 × 3,024; 2.23 MB. It was a long-lived storm that was most remembered for its very erratic and extremely slow track off the East Coast of the United States, alternating several times between tropical storm and hurricane intensity. As the wave tracked westward, it began to interact with the Intertropical Convergence Zone (ITCZ), and was subsequently introduced with a low chance of tropical development in the National Hurricane Center's (NHC) 48-hour Tropical Weather Outlook. While deep convection waned significantly early on September 23, it made a comeback by that afternoon, and an Air Force Reserve reconnaissance aircraft found 60 mph (95 km/h) winds in the system, much stronger than the intensity of 45 mph (75 km/h) the system was assessed with before the flight.  In Palm Beach County, one man drowned after being caught in rough seas associated with Ophelia.  Four flights from the United States to Bermuda were canceled due to stormy conditions.  Though atmospheric wind shear was only marginally favorable, the cloud pattern organized, and a surface low-pressure area developed in association with the disturbance. Deep convection blossomed atop the center late on September 28, and microwave imagery depicted the development of an eye.  Between September 6 and 9, torrential rainfall, measured up to 15.2 in (390 mm) in Flagler County, led to moderate street flooding, especially along poorly drained secondary roads. Plummeting temperatures in association with the remnants of the storm were expected to produce snowfall across the United Kingdom as well.  At Flagler Beach, Florida, the erosion endangered the foundation of highway A1A, and 140 dump trucks were brought in to buttress the road with rocks and sand. , From September 9 to September 11, Ophelia fluctuated in strength, being downgraded to a tropical storm only to regain hurricane intensity three more times; during this time it moved very slowly and erratically in a northeasterly direction. Overall, there were no deaths reported in association with Ophelia, and damage was minimal. Ophelia was a category 3 hurricane (on the Saffir-Simpson Hurricane Wind Scale) that spent its entire lifetime over the far eastern Atlantic Ocean, becoming the farthest-east major hurricane observed in … ", Hurricane Ophelia Public Advisory Number 29, Hurricane Ophelia Tropical Cyclone Update, "Flights cancelled, beach closed by Ophelia", "Hurricane Ophelia Public Advisory Number 37", "Hurricane Ophelia heads to Newfoundland, Nova Scotia", "North braced for Hurricane Ophelia as south basks in record-breaking heat", "Britain set for heavy rain and snow as Hurricane Ophelia ends mini heatwave", "Almost 1,0000 homes left without electricity as rain, gales and snow hits Donegal", https://en.wikipedia.org/w/index.php?title=Hurricane_Ophelia_(2011)&oldid=990227298, Creative Commons Attribution-ShareAlike License, This page was last edited on 23 November 2020, at 14:53. , As soon as Tropical Depression Sixteen formed on September 6, the government of the Bahamas issued a tropical storm warning for the northwestern Bahamas and the National Hurricane Center issued a tropical storm warning for much of the east Florida coastline. This intensity did not maintain long as the cloud pattern once again became disorganized.  Following an Air Force Reserve reconnaissance flight into the system, the disturbance was upgraded to Tropical Depression Ophelia at 1200 UTC on September 27, and was once again upgraded to a tropical storm with maximum sustained winds of 45 mph (75 km/h) 18 hours later. In Dominica, more than 4 in (100 mm) of rain fell over parts of the country, triggering flooding along several rivers. The National Hurricane Center initially assessed the remnants of Ophelia with a low chance of regeneration as deep convection fired in association with the low, but these odds were subsequently increased to a medium chance by the afternoon hours of September 26.  Ophelia intensified into a Category 2 hurricane with winds of 100 mph (155 km/h) by 0600 UTC and became the season's third major hurricane—a Category 3 or higher on the Saffir–Simpson hurricane scale—twelve hours later.  One indirect fatality was reported due to a traffic accident related to Ophelia, although no direct deaths were recorded. It dropped below hurricane strength again when the inner core of convection collapsed, possibly due to passing over cooler water that it upwelled earlier in its track. Ophelia then regained hurricane strength over the warm waters of the Gulf Stream. 91L formation RBTOP.gif 720 × 480; 1.83 MB. , Ophelia as a Category 3 hurricane on October 1, Air Force Reserve reconnaissance aircraft, National Oceanic and Atmospheric Administration, Hurricane Ophelia Tropical Cyclone Report, "Tropical Storm Ophelia Discussion Number 2", "Tropical Storm Ophelia Discussion Number 26", "Tropical Depression Ophelia Public Advisory Number 23", "Flooding and landslides in Dominica during heavy rainfall", "Dominica Schools closed in Ophelia's wake", "Encore en jaune pour fortes pluies et orages! Following the development of Ophelia, numerous storm watches and warnings were issued for the northeastern Caribbean Islands.  The computer models initially predicted two distinct possibilities for the storm's future, with some models indicating the storm would cross over Florida and enter the Gulf of Mexico while others indicated that it would stay offshore and move to the northeast. On September 6, a non-tropical low over the northern Bahamas became more organized and formed into Tropical Depression Sixteen between Andros and Grand Bahama.  In County Donegal the first snows of the season fell, leaving hundreds of residents without electricity.
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