Meteorological History
A weak surface trough, located to the west of an upper-level low, developed convection to the east of the Bahamas on July 26. A tropical wave entered the area two days later, resulting in an increase of convective organization and area. Although conditions were not favorable for tropical cyclone formation, it sped to the northwest and steadily organized, developing a surface area of low pressure on the 30th. On July 31, the system continued to organize, and developed into Tropical Depression One while located 200 miles (320 km) to the east of Jacksonville, Florida.
As the depression drifted erratically, the system remained weak due to its large circulation and lack of deep convection near the center. The center relocated to the south, closer to the center. An approaching upper-level trough lessened the shear over the system, allowing the depression to intensify into Tropical Storm Alex on August 1. The trough also caused Alex to increase its forward motion to the northeast. Deep convection continued to build over the center due to low shear and warm waters from the Gulf Stream, and Alex intensified into a hurricane on August 3 while located 75 miles (120 km) southeast of Cape Fear, North Carolina. The cyclone continued to strengthen, and attained Category 2 status just hours after becoming a hurricane. The hurricane approached the Outer Banks of North Carolina, coming within 10 miles (16 km) of Cape Hatteras later on the 3rd. The western portion of the eyewall passed over the Outer Banks, though the center remained offshore.
Alex turned to the east-northeast after passing the Outer Banks in response to becoming embedded within the west-southwesterly flow. The hurricane briefly weakened to a Category 1, but restrengthened due to warm waters of the Gulf Stream. Water temperatures remained 3.6 °F (2 °C) above normal, resulting in Alex intensifying into a 120 mph (195 km/h) major hurricane on August 5 while located 450 miles (710 km) south of Halifax, Nova Scotia. Due to low vertical shear and favorable conditions, Alex remained a Category 3 hurricane until passing over cooler waters late on the 5th while 290 miles (465 km) south of Newfoundland. Alex rapidly weakened, degrading into tropical storm status on August 6. Later on the 6th, Alex became extratropical while 950 miles (1530 km) east of Cape Race, Newfoundland, and lost its identity shortly thereafter.
Read more about this topic: Hurricane Alex (2004)
Famous quotes containing the word history:
“History ... is, indeed, little more than the register of the crimes, follies, and misfortunes of mankind.
But what experience and history teach is this—that peoples and governments have never learned anything from history, or acted on principles deduced from it.”
—Georg Wilhelm Friedrich Hegel (1770–1831)