|
From 2000 to the present, at least 28 tropical or subtropical cyclones affected the U.S. state of Louisiana. According to David Roth of the Hydrometeorological Prediction Center (HPC), a tropical cyclone makes landfall along the coastline about two times every three years, and a hurricane makes landfall once every 2.8 years. The most active month for tropical cyclone activity in the state is September, with ten total storms, while no recorded storms have affected Louisiana during the months of December through May. The most intense storm to affect the state in terms of barometric pressure is Hurricane Katrina of 2005, which also caused the most fatalities and damage with 1,577 total deaths and $81 billion in total damages. Katrina is also the costliest hurricane in the Atlantic basin. In terms of wind speed, Hurricane Katrina is also the strongest storm to affect the state, producing maximum sustained winds of , equivalent to Category 3 on the Saffir–Simpson hurricane scale. ==2000–04== *September 9, 2000 – Tropical Depression Nine makes landfall near the Texas and Louisiana border as a tropical depression with winds of . Although the depression makes landfall on Texas, most of the rain associated with the system affects Louisiana, where rainfall peaks at . At the coast, Tropical Depression Nine brings a storm surge peaking at . In Terrebonne Parish, strong thunderstorm winds associated with the depression damage trailers and boats in Bayou Black, resulting in $2,500 in damages. *Early–June 2001 – Tropical Storm Allison makes landfall near Freeport, Texas on June 5, consequently stalling over the state before moving offshore and subsequently making a second landfall on Morgan City as a subtropical depression on June 11 with winds of and a minimum pressure of . This results in catastrophic flooding across the state. Rainfall from Allison peaks at in Thibodaux, ranking as the second–wettest tropical cyclone in state history, only behind a hurricane in 1940. Major river flooding occurs in Amite River and Comite River, which experience their highest water levels since 1983. Homes are destroyed and swept away by flooding across the state. In Zachary, a man is killed after a tornado knocks a tree onto his truck.〔 Damages from Tropical Storm Allison in Louisiana alone total to $65 million. *August 6, 2001 – Tropical Storm Barry causes tides of 2–3 ft (0.6–0.9 m) along the southeastern coast of Louisiana before it makes landfall on Santa Rosa Beach, Florida on August 6. Prior to making landfall, tropical storm watches and warnings are issued along the Gulf Coast, west to New Orleans. *August 5, 2002 – Tropical Storm Bertha makes landfall on Boothville as a minimal tropical storm with wind speeds of and a minimum pressure of , moving across Louisiana as a weakening system before moving back into the Gulf of Mexico on August 7. The storm drops scattered rainfall across the state, peaking southwest of Franklinton at . Streets were flooded by the heavy rainfall in Slidell. In St. Tammany Parish, surface runoff from flash flooding causes some rivers to exceed flood stage. *September 5, 2002 – Tropical Storm Fay develops offshore the Louisiana coast before making landfall in Texas as a moderate tropical storm. West of Cameron, Fay causes a storm surge as high as , resulting in minor beach erosion and coastal highway flooding. Tropical Storm Fay's outer rainbands drop light rainfall over eastern and southern portions of the state, peaking at in Grand Isle.〔 Prior to making landfall, a tropical storm warning is issued for western parts of Louisiana east to Intracoastal City. *September 14, 2002 – Tropical Storm Hanna makes landfall near the mouth of the Mississippi River as a moderate tropical storm with winds of , before subsequently making landfall on the border between Alabama and Mississippi. Despite making landfall on Louisiana, as a result of convection displaced east of the center, the state receives primarily minimal effects from Hanna. No significant flooding resulted from high tides caused by the storm. Rainfall is confined to extreme eastern portions of the state, where rainfall peaks at in Sondeheimer, Louisiana.〔 *September 26, 2002 – Hurricane Isidore makes landfall just west of Grand Isle as a tropical storm with winds of 65 mph (105 km/h), having significantly weakened after stalling over the Yucatán Peninsula. Rainfall is widespread across the state, peaking at in Metarie.〔 The heavy rains cause the failure of drainage systems, leaving numerous streets flooded. In Terrebonne Parish, 200–300 homes are flooded. The rains also damage large plots of sugar cane crop in Southwest Louisiana.〔 *October 3, 2002 – Hurricane Lili made landfall on the morning of October 3 near Intracoastal City, as a weakening category 1 hurricane. Wind gusts reaching 120 mph (190 km/h), coupled with over 6 inches (150 mm) of rainfall and a storm surge of 12 feet (3.7 m) caused over $790 million (2002 USD) in damage to Louisiana. A total of 237,000 people lost power, and oil rigs offshore were shut down for up to a week. Crops were badly affected, particularly the sugar cane, damage totaled nearly $175 million (2002 USD). No direct deaths were reported as early warnings and the compact nature of the storm circumvented major loss of life. *June 30, 2003 – Tropical Storm Bill *August 31, 2003 – Tropical Storm Grace *September 23, 2004 – Hurricane Ivan *October 10, 2004 – Tropical Storm Matthew formed over the western Gulf of Mexico on October 8 and struck south-central Louisiana two days later. Upon making landfall, Matthew caused a storm surge of up to 5.85 feet (1.8 m) in Frenier, Louisiana. The storm surge and waves resulted in significant beach erosion in Grand Isle. Matthew produced heavy rainfall across its path, totaling to 16.23 inches (410 mm) in Reserve in the southeastern portion of the state. Portions of northwestern Louisiana experienced significant rainfall, including a peak of 18 inches (460 mm) in Haynesville near the Louisiana/Arkansas border. In addition, Matthew spawned one tornado, causing damage to the roof of a trailer in Golden Meadow. The rainfall also caused rivers to crest higher than normal, including the Killian River which peaked at 5.7 feet (1.7 m). Rainfall and storm surge flooded 20 homes in Terrebonne Parish. In addition, several homes in Lafouche Parish experienced flooding, including two with over two feet of water. Numerous homes in Golden Meadow experienced flooding, as well. The flooding also forced the temporary closing of numerous roads across the state, including portions of U.S. Route 11 and Interstate 10. Flood waters from the storm cracked a water line in LaPlace, leaving nearly 30,000 residents and many businesses without tap water. The problem was expected to take little time to fix, though residents were advise to boil the water before drinking it. Matthew also left 2,500 people without power for a short period of time. The storm's impact also closed several schools, forcing school administrators to reschedule plans for making up school closings caused by Hurricane Ivan one month earlier. In all, Matthew caused no deaths and $255,000 in damage (2004 USD). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of Louisiana hurricanes (2000–present)」の詳細全文を読む スポンサード リンク
|