Hurricane Irene (2005)
| Category 2 hurricane ( SSHWS ) | ||
|---|---|---|
 |
||
| Emergence | August 4, 2005 | |
| resolution | August 18, 2005 | |
|
Peak wind speed |
|
|
| Lowest air pressure | 970 mbar ( hPa ; 28.7 inHg ) | |
| dead | 1 direct | |
| Property damage | Unknown | |
|
Affected areas |
United States East Coast | |
| Season overview: Atlantic hurricane season 2005 |
||
The Hurricane Irene was a long-lived Cape Verde hurricane in the Atlantic hurricane season in 2005 . The storm formed near Cape Verde on August 4th . It crossed the Atlantic , turned to the more northerly Bermuda Islands , and became an extratropical storm southeast of Newfoundland . Irene survived as a tropical system for 14 days , longer than any other storm in the record season of 2005, when the cyclone was the ninth named storm and the fourth hurricane .
The strength of the hurricane proved difficult to predict. After nearly dispersing on August 10, Irene culminated on August 16 as a Category 2 hurricane on the Saffir-Simpson Hurricane Wind Scale before being absorbed into a larger tropical system on August 18. Although initially fears Irene might reach the land, she was never a threat to the mainland . No damage was discovered that it caused.
Meteorological history
On August 1, a powerful tropical wave set in motion from the west coast of Africa , initially weakening to cooler surface temperatures . The wave moved westward and passed Cape Verde , where convection began to increase, the system became more organized and developed into Tropical Depression 9 on the afternoon of August 4th, 1,100 km southwest of the Cape Verde Islands . On August 5th, it turned the Depression abruptly to the northwest, to an area of higher wind shear , leading some computer models to predict that it would resolve while others forecast that it would continue to grow. The sudden threat of the storm led Lixion Avila, meteorologists at the National Hurricane Center (NHC), to admit "how little we know about tropical storms". Despite the unfavorable conditions in their area and poor organization, Tropical Depression Nine continued to gain strength and became Tropical Storm Irene on August 7th.
Being in a high-shear, dry-air environment, Irene soon weakened back to a tropical depression on August 8th. On the morning of August 10th, Irene moved across the Lesser Antilles and dispersed to almost a residual low, on the basis of which the meteorologists predicted that the storm would only survive "with a low probability". However, warm waters and less wind shear allowed Irene to rearrange south of Bermuda. Thus, on August 11th, Irene became a tropical storm again.
Due to uncertainties about how Irene would interact with the subtropical front, the computer models still did not give any clear predictions about the future of the storm. While some predicted that Irene would hit mainland North Carolina , others prophesied that the storm would dissolve. The uncertainties ended when a weak spot in the subtropical front allowed Irene to move northward. On August 15, Irene was moving halfway between the Outer Banks off North Carolina and Bermuda. When the wind shear suddenly weakened at higher altitudes, Irene suddenly gained strength, first became a hurricane and then reached its top speed of 170 km / h as a category 2 hurricane . It was located 560 km northeast of Bermuda. At the same time, the storm also reached its lowest pressure of 970 mbar. Although NHC meteorologists thought it was likely that Irene would develop into a hurricane, they hadn't believed it possible that she would become a storm of this magnitude.
Irene entered a region of higher wind shear, lost strength, and graduated to a tropical storm on August 18 when she was 830 km south of Cape Race near Newfoundland . After moving over cooler waters, tropical storm Irene turned extratropical as late as August 18 and was sucked up into a larger extratropical system. So Irene existed for a fortnight, which is the longest lifetime of any storm of the season .
Follows, records and naming
As long as Irene did not approach the mainland, no warnings were issued for her on the coasts. Although Irene was so long over the Atlantic , no reports were made that a tropical storm threatened a ship. Irene did no harm. However, the storm created powerful waves and increased the risk of surf recurrent along the east coast of the United States . Bathing was restricted on many beaches in New Jersey , with lifeguards on a single beach more than a hundred rescues in three days. On August 14, a 16-year-old boy drowned trapped in a rib current on Long Beach, New York .
When Storm Irene formed on August 7, it was the earliest ninth storm in an Atlantic hurricane season , breaking the record of the ninth storm of the 1936 season by 13 days. It was also the fifth tropical cyclone over the Atlantic to be named Irene. Due to the lack of consequences of the storm, the name was put on the list of names for the storms of the 2011 season by the World Meteorological Organization .
Individual evidence
- ↑ http://www.nhc.noaa.gov/data/tcr/AL092005_Irene.pdf Report on the tropical cyclone Irene
- ↑ http://www.nhc.noaa.gov/archive/2005/dis/al092005.discus.004.shtml Comment by a meteorologist from the National Hurricane Center
- ↑ Discussion of the Tropical Storm Irene
- ↑ http://www.nhc.noaa.gov/archive/2005/dis/al092005.discus.041.shtml
- ↑ Archive link ( Memento of the original from September 2, 2006 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archive link ( Memento of the original from January 11, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
