|
Hurricane Babe was the second named storm and the first to impact the United States during the below-average 1977 Atlantic hurricane season. Forming out of a tropical wave on September 3, Babe began as a subtropical cyclone in the eastern Gulf of Mexico. The storm gradually intensified as it tracked westward. On September 5, the storm turned north and acquired enough tropical characteristics. Later that day, Babe intensified into a hurricane and attained its peak strength with winds of 75 mph (120 km/h) and a barometric pressure of 995 mbar (hPa; 29.38 inHg). Several hours later, the hurricane made landfall in Louisiana and quickly weakened. By September 6, Babe had weakened to a tropical depression and later dissipated early on September 9 over North Carolina. Hurricane Babe produced minimal impact throughout its path in the United States. The most significant impact occurred in Louisiana where the storm caused $10 million (1977 USD; $ USD) in damage, mainly from crop losses. An additional $3 million (1977 USD; $ USD) in losses resulted from tornadoes spawned by Babe. Heavy rainfall in North Carolina, peaking at triggered flash flooding but little damage. No fatalities resulted from the hurricane. Coincidentally, a typhoon, also named Babe, existed at exactly the same time as Hurricane Babe. ==Meteorological history== Hurricane Babe originated from a tropical wave that exited the western coast of Africa on August 23. Tracking westward, the wave eventually entered the Gulf of Mexico on September 2. Upon entering the gulf, a surface circulation developed; however, convection associated with the system was not concentrated around the center. The newly formed system then interacted with an upper tropospheric cyclonic vortex situated near the Florida coastline. The following day, Convective banding features around the cyclone led to the National Hurricane Center (NHC) upgrading the system to Tropical Storm Babe.〔 Although classified a tropical storm, Babe was not fully tropical, it was later classified as a subtropical cyclone.〔 The forward motion of Babe had slowed significantly from when it was a wave〔 but maintained the westward direction. By September 4, the maximum winds were found closer to the center of circulation and the cyclone developed a warmer core, a main feature in tropical cyclones. An anticyclone also developed over Babe and later that day, the storm transitioned into a tropical cyclone.〔 By this time, Babe had turned nearly due north and was near hurricane-status.〔 Around this time, reconnaissance missions into the storm found a closed eyewall with an eye measuring roughly 23 mi (37 km) in diameter. Another reconnaissance flight that day found sustained winds of 80 mph (130 km/h); however, these winds were located roughly 65 mi (100 km) from the center and considered to be unrepresentative of the storm's actual intensity.〔 Early on September 5, reconnaissance found a central barometric pressure of 995 mbar (hPa; 29.38 inHg), the lowest recorded in relation to the storm.〔 Around this time, Babe also intensified into a hurricane, attaining maximum winds of 75 mph (120 km/h).〔 Later that day, Hurricane Babe made landfall near Cocodrie, Louisiana and quickly weakened to a tropical storm.〔 By landfall, the eye of Babe had contracted to roughly 14 mi (23 km).〔 On September 6, the storm had weakened to a tropical depression and was moving northeast into Mississippi. The system continued this movement for the following two days.〔〔 While crossing South Carolina, forecasters thought that the system would emerge into the Atlantic Ocean and regenerate into a tropical depression. However, the remnants of Babe dissipated shortly before crossing into North Carolina early on September 9.〔 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「Hurricane Babe」の詳細全文を読む スポンサード リンク
|