Tropical Storm Franklin (2005)

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Tropical Storm Franklin
Tropical storm (SSHWS/NWS)

TS Franklin 23 july 2005 1545Z.jpg

Tropical Storm Franklin near the Bahamas on July 23
Formed July 21, 2005
Dissipated July 31, 2005
( Extratropical after July 29)
Highest winds 1-minute sustained:70 mph (110 km/h)
Lowest pressure 997 mbar (hPa); 29.44 inHg
Fatalities None reported
Damage None
Areas affected Bahamas, Bermuda, Newfoundland
Part of the 2005 Atlantic hurricane season

Tropical Storm Franklin was a strong tropical storm over the western Atlantic Ocean during July of the 2005 Atlantic hurricane season. It was the sixth named storm of the season and twice approached hurricane strength. The storm formed over the Bahamas on July 21 then moved north erratically, approaching Bermuda on July 26. Franklin eventually became extratropical near Newfoundland on July 30, before being absorbed by a larger system. The National Hurricane Center struggled to predict Tropical Storm Franklin mainly due to difficulties in predicting the effects of wind shear. There were only minor effects on land from Tropical Storm Franklin and no damages were caused. The name Franklin was used for the first time because of Hurricane Floyd which was retired in the 1999 season.

2005 Atlantic hurricane season Summary of the relevant tropical storms

The 2005 Atlantic hurricane season was the most active Atlantic hurricane season in recorded history, shattering numerous records. The impact of the season was widespread and catastrophic. Its storms caused an estimated total of 3,960 deaths and approximately $180.7 billion in damage, making it the second costliest season on record, surpassed only by the 2017 season.

Bermuda British overseas territory in the North Atlantic Ocean

Bermuda is a British Overseas Territory in the North Atlantic Ocean. It is approximately 1,070 km (665 mi) east-southeast of Cape Hatteras, North Carolina; 1,236 km (768 mi) south of Cape Sable Island, Nova Scotia; and 1,759 km (1,093 mi) northeast of Cuba. The capital city is Hamilton. Bermuda is self-governing, with its own constitution and its own government, which enacts local laws, while the United Kingdom retains responsibility for defence and foreign relations. As of July 2018, its population is 71,176, the highest of the British overseas territories.

Newfoundland (island) Island portion of Newfoundland and Labrador, Canada

Newfoundland is a large Canadian island off the east coast of the North American mainland, and the most populous part of the Canadian province of Newfoundland and Labrador. It has 29 percent of the province's land area. The island is separated from the Labrador Peninsula by the Strait of Belle Isle and from Cape Breton Island by the Cabot Strait. It blocks the mouth of the Saint Lawrence River, creating the Gulf of Saint Lawrence, the world's largest estuary. Newfoundland's nearest neighbour is the French overseas community of Saint-Pierre and Miquelon.

Contents

Meteorological history

Map plotting the track and intensity of the storm, according to the Saffir-Simpson scale Franklin 2005 track.png
Map plotting the track and intensity of the storm, according to the Saffir–Simpson scale

A tropical wave emerged from the African coast late on July 10. The wave entered the Bahamas on July 21 and organized into Tropical Depression Six while 70 miles (110 km) east of Eleuthera. [1] Initially the storm was predicted to execute a clockwise loop and drift to the west in response to a high pressure system. Several models indicated the possibility of the storm to drift westward into central Florida. [2] Soon after the depression formed, it strengthened into Tropical Storm Franklin.

Eleuthera island in the Bahamas

Eleuthera refers both to a single island in the archipelagic state of The Commonwealth of the Bahamas and to its associated group of smaller islands. Eleuthera forms a part of the Great Bahama Bank. The island of Eleuthera incorporates the smaller Harbour Island. "Eleuthera" derives from the feminine Greek adjective ἐλεύθερος (eleutheros), meaning "free". Known in the 17th century as Cigateo, it lies 80 km east of Nassau. It is long and thin—180 km long and in places little more than 1.6 km wide. Its eastern side faces the Atlantic Ocean, and its western side faces the Great Bahama Bank. The topography of the island varies from wide rolling pink sand beaches to large outcrops of ancient coral reefs, and its population is approximately 11,000. The principal economy of the island is tourism.

Florida State of the United States of America

Florida is the southernmost contiguous state in the United States. The state is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Atlantic Ocean, and to the south by the Straits of Florida. Florida is the 22nd-most extensive, the 3rd-most populous, and the 8th-most densely populated of the U.S. states. Jacksonville is the most populous municipality in the state and the largest city by area in the contiguous United States. The Miami metropolitan area is Florida's most populous urban area. Tallahassee is the state's capital.

Tropical Storm Franklin suffered high levels of wind shear associated with the development of Tropical Storm Gert, which led the forecasters at the National Hurricane Center to say that Franklin could be torn apart in the next few days. [3] However the shear abated as Franklin moved to the northeast allowing the storm to strengthen. The forecasters then stated that Franklin could "attain and maintain hurricane strength" and make a close approach to Bermuda. [4] Shortly after on July 23, Tropical Storm Franklin reached its peak strength with 70 mph (110 km/h) winds. [1]

Tropical Storm Gert (2005) Atlantic tropical storm in 2005

Tropical Storm Gert was the fourth of seven tropical cyclones to make landfall in Mexico during 2005. It formed in July in the Bay of Campeche, becoming the seventh named storm of the 2005 Atlantic hurricane season.

National Hurricane Center division of the United States National Weather Service

The National Hurricane Center (NHC) is the division of the United States' National Weather Service responsible for tracking and predicting tropical weather systems between the Prime Meridian and the 140th meridian west poleward to the 30th parallel north in the northeast Pacific Ocean and the 31st parallel north in the northern Atlantic Ocean. The agency, which is co-located with the Miami branch of the National Weather Service, is situated on the campus of Florida International University in University Park, Florida.

Franklin moved erratically to the east weakening as shear increased again. The NHC predicted that would dissipate, but the weakening trend stopped on July 25 with Franklin a minimal tropical storm. [5] The storm passed to 200 miles (325 km) to the west of Bermuda on July 26 and moved slowly northwards into the warmer waters of the Gulf Stream. The shear also reduced once again allowing Franklin to re-strengthen somewhat, with winds reaching 60 mph (95 km/h) on July 28. Franklin began to accelerate to the northeast, becoming extratropical on July 30 to the south of Newfoundland. The extratropical storm passed just south of the Avalon Peninsula later that day and was absorbed by a larger system on July 31. [1]

Gulf Stream A warm, swift Atlantic current that originates in the Gulf of Mexico flows around the tip of Florida, along the east coast of the United States before crossing the Atlantic Ocean

The Gulf Stream, together with its northern extension the North Atlantic Drift, is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean. The process of western intensification causes the Gulf Stream to be a northward accelerating current off the east coast of North America. At about 40°0′N30°0′W, it splits in two, with the northern stream, the North Atlantic Drift, crossing to Northern Europe and the southern stream, the Canary Current, recirculating off West Africa.

Avalon Peninsula peninsula on the island of Newfoundland

The Avalon Peninsula is a large peninsula that makes up the southeast portion of the island of Newfoundland. It is 9,220 square kilometres (3,560 sq mi) in size.

Impact

As Tropical Storm Franklin was forming, a tropical storm warning was issued for the northwest Bahamas, but it was canceled as Franklin moved north and away from the islands. A tropical storm watch was issued for Bermuda on July 25 but was canceled a day later when Franklin turned away. [1]

Tropical cyclone warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate preparation for the cyclone, including evacuation of vulnerable areas where necessary. It is important that interests throughout the area of an alert make preparations to protect life and property, and do not disregard it on the strength of the detailed forecast track. Tropical cyclones are not points, and forecasting their track remains an uncertain science.

Tropical Storm Franklin developed very close to land in the Bahamas and passed near Bermuda, but there were no reports of tropical storm force winds overland, with the strongest gust recorded on Bermuda being 37 mph (60 km/h). After Franklin became extratropical, it brushed southeastern Newfoundland, bringing about 1 inch (25 mm) of rain to the area. [6] There were no damages or fatalities as a result of Tropical Storm Franklin. [1]

See also

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References

  1. 1 2 3 4 5 National Hurricane Center. "Tropical Cyclone Report: Tropical Storm Franklin" (PDF). NOAA. Retrieved April 27, 2006.
  2. National Hurricane Center. "Discussion for Tropical Depression Six, 5:00 p.m. EDT, July 21, 2005". NOAA. Retrieved April 27, 2006.
  3. National Hurricane Center. "Discussion for Tropical Storm Franklin, 11:00 p.m. EDT, July 22, 2005". NOAA. Retrieved April 27, 2006.
  4. National Hurricane Center. "Discussion for Tropical Storm Franklin, 5:00 a.m. EDT, July 23, 2005". NOAA. Retrieved April 27, 2006.
  5. National Hurricane Center. "Discussion for Tropical Storm Franklin, 11:00 a.m. EDT, July 24, 2005". NOAA. Retrieved April 27, 2006.
  6. Canadian Hurricane Centre. "Bulletin on Post-Tropical Storm Franklin, 12:30 p.m. NDT, July 30, 2005". Environment Canada. Archived from the original on October 2, 2006. Retrieved April 27, 2006.