The season produced seventeen tropical depressions, of which fifteen intensified into tropical storms, nine became hurricanes, and four strengthened into major hurricanes.[nb 2] The two most significant storms of the year, in terms of loss of life and damage, were Tropical Storm Allison and Hurricane Michelle. Forming over the northwestern Gulf of Mexico, Allison produced widespread heavy rainfall along its path (most notably across Texas and Louisiana), killing 41 people and inflicting $9 billion (2001USD) in damage.[4] Following the season, Allison became the first tropical storm to have its name retired by the World Meteorological Organization.[5] Hurricane Michelle was the most intense cyclone of the 2001 season, with winds reaching 140mph (220km/h).[nb 3] The storm's impacts extended from the Caribbean Sea to the Bahamas and were most severe in Cuba, cementing its status as one of the costliest cyclones on record there.[6]
This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not initially warned upon, has been included.
June
June1
The 2001 Atlantic hurricane season officially begins.[2]
18:00UTC (1:00p.m. CDT) – Tropical Storm Allison attains peak winds of 60mph (95km/h) roughly 30mi (50km) south of Freeport, Texas.[4]
2100UTC (4:00p.m. CDT) – Tropical Storm Allison makes landfall near Freeport, Texas, with winds of 50mph (85km/h).[4]
June6
06:00UTC (1:00a.m. CDT) – Tropical Storm Allison weakens to a tropical depression approximately 25mi (40km) northeast of Houston, Texas.[4]
June10
00:00UTC (7:00p.m. CDT, June9) – Tropical Depression Allison transitions into a subtropical depression about 25mi (40km) south-southeast of Freeport, Texas.[4]
June11
02:00UTC (9:00p.m. CDT, June10) – Subtropical Depression Allison makes a second and final landfall near Morgan City, Louisiana, with winds of 35mph (55km/h).[4]
06:00UTC (1:00a.m. CDT) – Subtropical Depression Allison intensifies into a subtropical storm roughly 25mi (40km) west of New Orleans, Louisiana.[4]
12:00UTC (7:00a.m. CDT) – Subtropical Storm Allison attains a minimum barometric pressure of 1000mbar (hPa; 29.53inHg) approximately 20mi (30km) north-northeast of Picayune, Mississippi.[4]
June12
00:00UTC (7:00p.m. CDT, June11) – Subtropical Storm Allison weakens to a subtropical depression about 20mi (30km) north of Atmore, Alabama.[4]
June17
12:00UTC (7:00a.m. CDT) – Subtropical Depression Allison re-intensifies into a subtropical storm roughly 55mi (90km) east of Atlantic City, New Jersey.[4]
00:00UTC (8:00p.m. AST, July11) – Tropical Depression Two attains its peak intensity with maximum sustained winds of 30mph (45km/h) and a minimum barometric pressure of 1010mbar (hPa; 29.82inHg) roughly 1,070mi (1,720km) east of the Windward Islands.[7]
July13
00:00UTC (8:00p.m. AST, July11) – Tropical Depression Two dissipates approximately 690mi (1,110km) east of the Windward Islands.[7]
August
August2
12:00UTC (8:00a.m. EDT)– Tropical Depression Three develops from an area of low pressure about 200mi (320km) west-northwest of Key West, Florida.[8]
00:00UTC (8:00p.m. EDT, August3)– Tropical Storm Barry weakens to a tropical depression approximately 275mi (445km) southeast of New Orleans, Louisiana.[8]
18:00UTC (2:00p.m. EDT)– Tropical Depression Barry re-intensifies into Tropical Storm Barry about 250mi (400km) southeast of New Orleans, Louisiana.[8]
August5
12:00UTC (8:00a.m. EDT)– Tropical Storm Barry attains a minimum barometric pressure of 990mbar (hPa; 29.23inHg) roughly 150mi (240km) south-southwest of Panama City, Florida.[8]
18:00UTC (2:00p.m. EDT)– Tropical Storm Barry attains peak winds of 70mph (110km/h) approximately 115mi (185km) southwest of Panama City, Florida.[8]
August6
05:00UTC (1:00a.m. EDT)– Tropical Storm Barry makes landfall at Santa Rosa Beach, Florida, with winds of 70mph (110km/h).[8]
12:00UTC (7:00a.m. CDT)– Tropical Storm Barry weakens to a tropical depression for a second time about 15mi (25km) west of Greenville, Alabama.[8]
August7
06:00UTC (1:00a.m. CDT)– Tropical Depression Barry degenerates into a non-convective remnant area of low pressure roughly 95mi (155km) southeast of Memphis, Tennessee.[8]
August8
12:00UTC (7:00a.m. CDT)– The remnants of Barry dissipate over southeastern Missouri.[8]
August14
18:00UTC (2:00p.m. AST)– Tropical Depression Four develops from an area of low pressure approximately 1,495mi (2,405km) east of the southern Windward Islands.[9]
August16
12:00UTC (8:00a.m. AST)– Tropical Depression Four degenerates into a tropical wave about 375mi (605km) east of the southern Windward Islands.[9]
August17
12:00UTC (8:00a.m. AST)– The remnants of Tropical Depression Four regenerate into Tropical Storm Chantal, skipping tropical depression status, roughly 275mi (445km) south of Saint Croix.[9]
August19
06:00UTC (1:00a.m. CDT)– Tropical Storm Chantal attains its peak intensity with maximum sustained winds of 70mph (110km/h) and a minimum barometric pressure of 997mbar (hPa; 29.44inHg) approximately 200mi (320km) south-southwest of Kingston, Jamaica.[9]
August21
02:00UTC (9:00p.m. CDT, August2)– Tropical Storm Chantal makes landfall near the Mexico–Belize border, with winds of 70mph (110km/h).[9]
August22
00:00UTC (7:00p.m. CDT, August21)– Tropical Storm Chantal weakens to a tropical depression about 80mi (130km) south-southeast of Campeche City, Mexico.[9]
12:00UTC (8:00a.m. AST)– Tropical Storm Dean develops from an area of low pressure about 20mi (30km) east-northeast of Saint Croix.[10]
18:00UTC (1:00p.m. CDT)– Tropical Depression Chantal dissipates over the Mexican state of Tabasco.[10]
18:00UTC (2:00p.m. AST)– Tropical Depression Dean degenerates into a tropical wave approximately 125mi (200km) north-northeast of Cockburn Town, Turks and Caicos Islands.[10]
August26
18:00UTC (2:00p.m. AST)– The remnants of Dean regenerate into a tropical depression about 220mi (355km) north of Bermuda.[10]
August27
00:00UTC (8:00p.m. AST, August26)– Tropical Depression Dean re-intensifies into a tropical storm roughly 290mi (465km) north-northeast of Bermuda.[10]
18:00UTC (2:00p.m. AST)– Tropical Storm Dean attains its peak intensity with maximum sustained winds of 70mph (110km/h) and a minimum barometric pressure of 994mbar (hPa; 29.35inHg) approximately 350mi (565km) southeast of Halifax, Nova Scotia.[10]
18:00UTC (2:00p.m. AST)– The extratropical remnants of Dean are absorbed within a larger extratropical low over the North Atlantic.[10]
September
September1
18:00UTC (2:00p.m. AST)– Tropical Depression Six develops from an area of low pressure roughly 690mi (1,110km) west-southwest of Cabo Verde.[11]
September2
06:00UTC (2:00a.m. AST)– Tropical Depression Six intensifies into Tropical Storm Erin approximately 865mi (1,390km) west-southwest of Cabo Verde.[11]
September5
18:00UTC (2:00p.m. AST)– Tropical Storm Erin degenerates into a non-convective remnant area of low pressure about 285mi (460km) northeast of Antigua and Barbuda.[11]
September6
18:00UTC (2:00p.m. AST)– The remnants of Tropical Storm Erin regenerate into a tropical depression roughly 550mi (890km) northeast of the northern Leeward Islands.[11]
September7
12:00UTC (8:00a.m. AST)– Tropical Depression Seven develops from an area of low pressure roughly 415mi (670km) southwest of Cabo Verde.[12]
18:00UTC (2:00p.m. AST)– Tropical Depression Erin re-intensifies into a tropical storm approximately 635mi (1,020km) north-northeast of the northern Leeward Islands.[11]
September8
18:00UTC (2:00p.m. AST)– Tropical Depression Seven degenerates into a tropical wave roughly 750mi (1,205km) west-southwest of Cabo Verde.[12]
September9
00:00UTC (8:00p.m. AST, September8)– Tropical Storm Erin intensifies into a Category1 hurricane approximately 315mi (505km) southeast of Bermuda.[11]
06:00UTC (2:00a.m. AST)– Hurricane Erin intensifies into a Category2 hurricane about 235mi (380km) southeast of Bermuda.[11]
18:00UTC (2:00p.m. AST)– Hurricane Erin intensifies into a Category3 hurricane and reaches its peak intensity with winds of 120mph (195km/h) and a minimum barometric pressure of 968mbar (hPa; 28.59inHg) roughly 120mi (195km) east of Bermuda.[11]
September10
06:00UTC (2:00a.m. AST)– The remnants of Tropical Depression Seven regenerate into a tropical depression about 1,275mi (2,050km) west of Cabo Verde.[12]
18:00UTC (2:00p.m. AST)– Hurricane Erin weakens to a Category2 hurricane about 240mi (385km) north of Bermuda.[11]
September11
00:00UTC (8:00p.m. AST, September10)– Hurricane Erin weakens to a Category1 hurricane roughly 290mi (465km) north-northwest of Bermuda.[11]
12:00UTC (8:00a.m. AST)– Tropical Depression Seven intensifies into Tropical Storm Felix about 1,555mi (2,505km) west-northwest of Cabo Verde.[12]
18:00UTC (2:00p.m. EDT)– Tropical Depression Eight develops from an area of low pressure approximately 145mi (230km) southwest of Cape Coral, Florida.[13]
September13
00:00UTC (8:00p.m. AST, September12)– Tropical Storm Felix intensifies into a Category1 hurricane roughly 1,690mi (2,720km) northwest of Cabo Verde.[12]
12:00UTC (8:00a.m. AST)– Hurricane Felix intensifies into a Category2 hurricane approximately 1,715mi (2,760km) northwest of Cabo Verde.[12]
12:00UTC (8:00a.m. EDT)– Tropical Depression Eight intensifies into Tropical Storm Gabrielle about 205mi (330km) southwest of Cape Coral, Florida.[13]
September14
00:00UTC (8:00p.m. AST, September13)– Hurricane Felix intensifies into a Category3 hurricane and reaches its peak intensity with winds of 115mph (185km/h) and a minimum barometric pressure of 962mbar (hPa; 28.41inHg) roughly 1,610mi (2,590km) southwest of the Azores.[12]
12:00UTC (8:00a.m. AST)– Hurricane Felix weakens to a Category2 hurricane approximately 1,030mi (1,660km) southwest of the Azores.[12]
September15
00:00UTC (8:00p.m. AST, September14)– Hurricane Erin weakens to a tropical storm about 20mi (30km) east-northeast of Cape Race, Newfoundland.[11]
06:00UTC (2:00a.m. AST)– Tropical Storm Erin transitions into an extratropical cyclone roughly 125mi (200km) north-northeast of St. John's, Newfoundland and Labrador.[11]
September16
06:00UTC (2:00a.m. AST)– Hurricane Felix weakens to a Category 1 hurricane approximately 490mi (790km) south of the Azores.[12]
September17
00:00UTC (8:00p.m. AST, September16)– Tropical Storm Gabrielle intensifies into a Category1 hurricane about 345mi (555km) west of Bermuda.[13]
06:00UTC (2:00a.m. AST)– The extratropical remnants of Erin merge with a larger extratropical low over eastern Greenland.[11]
12:00UTC (8:00a.m. AST)– Hurricane Felix weakens to a tropical storm roughly 405mi (650km) southwest of the Azores.[12]
12:00UTC (8:00a.m. AST)– Hurricane Gabrielle attains its peak winds of 80mph (130km/h) about 230mi (370km) northwest of Bermuda.[13]
September18
00:00UTC (8:00p.m. AST, September17)– Hurricane Gabrielle weakens to a tropical storm roughly 335mi (540km) north-northeast of Bermuda.[13]
18:00UTC (2:00p.m. AST)– Tropical Storm Felix weakens to a tropical depression approximately 310mi (500km) south of the Azores.[12]
September19
00:00UTC (8:00p.m. AST, September18)– Tropical Storm Gabrielle attains its minimum barometric pressure of 975mbar (hPa; 28.80inHg) about 415mi (670km) southwest of Cape Race, Newfoundland.[13]
06:00UTC (2:00a.m. AST)– Tropical Depression Felix dissipates roughly 460mi (740km) southwest of the Azores.[12]
06:00UTC (2:00a.m. AST)– Tropical Storm Gabrielle transitions into an extratropical cyclone approximately 285mi (460km) south-southwest of Cape Race, Newfoundland.[13]
18:00UTC (2:00p.m. EDT)– Tropical Depression Nine develops from an area of low pressure about 60mi (95km) north-northwest of San Andrés.[14]
21:00UTC (5:00p.m. EDT)– Tropical Depression Nine attains its peak intensity with maximum sustained winds of 35mph (55km/h) and a minimum barometric pressure of 1005mbar (hPa; 29.68inHg) roughly 100mi (160km) northwest of San Andrés.[14]
12:00UTC (8:00a.m. EDT)– Tropical Depression Nine dissipates over the mountains of Central America.[14]
September21
12:00UTC (8:00a.m. AST)– Tropical Depression Ten develops from an area of low pressure approximately 490mi (790km) south of Bermuda.[15]
September22
00:00UTC (8:00p.m. AST, September21)– The extratropical remnants of Gabrielle merge with another extratropical cyclone over the far northern Atlantic.[13]
12:00UTC (8:00a.m. AST)– Tropical Depression Ten intensifies into Tropical Storm Humberto about 315mi (505km) south-southwest of Bermuda.[15]
September23
12:00UTC (8:00a.m. AST)– Tropical Storm Humberto intensifies into a Category1 hurricane roughly 175mi (280km) west-southwest of Bermuda.[15]
September24
00:00UTC (8:00p.m. AST, September23)– Hurricane Humberto intensifies into a Category2 hurricane approximately 135mi (215km) west of Bermuda.[15]
06:00UTC (2:00a.m. AST)– Hurricane Humberto weakens to a Category1 hurricane about 155mi (250km) northwest of Bermuda.[15]
September26
12:00UTC (8:00a.m. AST)– Hurricane Humberto re-intensifies into a Category2 hurricane and simultaneously attains its peak intensity with maximum sustained winds of 105mph (165km/h) and a minimum barometric pressure of 970mbar (hPa; 28.64inHg) roughly 490mi (790km) southwest of Cape Race, Newfoundland.[15]
18:00UTC (2:00p.m. AST)– Hurricane Humberto weakens to a Category1 hurricane for a second time approximately 385mi (620km) south-southwest of Cape Race, Newfoundland.[15]
September27
12:00UTC (8:00a.m. AST)– Hurricane Humberto weakens to a tropical storm about 415mi (670km) southeast of Cape Race, Newfoundland.[15]
September28
00:00UTC (8:00p.m. AST, September27)– Tropical Storm Humberto dissipates over the far northern Atlantic.[15]
October
October4
12:00UTC (8:00a.m. AST)– Tropical Depression Eleven develops from an area of low pressure about 100mi (160km) southeast of Barbados.[16]
October5
12:00UTC (8:00a.m. AST)– Tropical Depression Eleven intensifies into Tropical Storm Iris roughly 275mi (445km) southeast of San Juan, Puerto Rico.[16]
October6
12:00UTC (8:00a.m. AST)– Tropical Depression Twelve develops from an area of low pressure about 620mi (1,000km) east-southeast of Barbados.[17]
18:00UTC (2:00p.m. AST)– Tropical Storm Iris intensifies into a Category1 hurricane approximately 65mi (100km) southwest of Beata Island, Dominican Republic.[16]
October7
00:00UTC (8:00p.m. AST, October6)– Tropical Depression Twelve intensifies into Tropical Storm Jerry roughly 415mi (670km) southeast of Barbados.[17]
October8
06:00UTC (2:00a.m. EDT)– Hurricane Iris intensifies into a Category2 hurricane about 155mi (250km) south-southwest of the Cayman Islands.[16]
06:00UTC (2:00a.m. AST)– Tropical Storm Jerry attains its peak intensity with maximum sustained winds of 50mph (85km/h) and a minimum barometric pressure of 1004mbar (hPa; 29.65inHg) approximately 60mi (95km) west of Saint Lucia.[17]
12:00UTC (8:00a.m. EDT)– Hurricane Iris intensifies into a Category4 hurricane, skipping Category3 intensity, roughly 230mi (370km) southwest of the Cayman Islands.[16]
18:00UTC (2:00p.m. AST)– Tropical Storm Jerry weakens to a tropical depression about 235mi (380km) south of Saint Croix.[17]
October9
00:00UTC (8:00p.m. EDT, October8)– Hurricane Iris attains its peak intensity with maximum sustained winds of 145mph (235km/h) and a minimum barometric pressure of 948mbar (hPa; 27.99inHg) approximately 35mi (55km) northeast of Monkey River Town, Belize.[16]
00:00UTC (8:00p.m. AST, October8)– Tropical Depression Jerry dissipates south of Puerto Rico.[17]
02:00UTC (9:00p.m. CDT, October8)– Hurricane Iris makes landfall near Monkey River Town, Belize, with winds of 145mph (235km/h).[16]
06:00UTC (2:00a.m. CDT)– Hurricane Iris weakens to a tropical storm about 30mi (50km) southeast of Sayaxché, Guatemala.[16]
12:00UTC (8:00a.m. CDT)– Tropical Storm Iris weakens to a tropical depression roughly 15mi (25km) east of Comitán, Mexico.[16]
00:00UTC (8:00p.m. AST, October11)– Subtropical Storm One develops from an area of low pressure approximately 35mi (55km) south of Bermuda.[18]
October13
06:00UTC (2:00a.m. AST)– Subtropical Storm One transitions into Tropical Storm Karen about 195mi (315km) north of Bermuda.[18]
18:00UTC (2:00p.m. AST)– Tropical Storm Karen intensifies into a Category1 hurricane roughly 340mi (545km) north of Bermuda.[18]
October14
06:00UTC (2:00a.m. AST)– Hurricane Karen attains its peak intensity with maximum sustained winds of 80mph (130km/h) and a minimum barometric pressure of 998mbar (hPa; 29.47inHg) approximately 440mi (710km) north of Bermuda.[18]
12:00UTC (8:00a.m. AST)– Hurricane Karen weakens to a tropical storm about 480mi (775km) north of Bermuda.[18]
October15
12:00UTC (8:00a.m. AST)– Tropical Storm Karen makes landfall near Western Head, Nova Scotia, with maximum sustained winds of 45mph (75km/h).[18]
18:00UTC (2:00p.m. AST)– Tropical Storm Karen transitions into an extratropical cyclone roughly 105mi (170km) northwest of Cape Breton Island.[18]
October16
00:00UTC (8:00p.m. AST, October15)– The extratropical remnants of Karen are absorbed by a larger extratropical low over the Gulf of Saint Lawrence.[18]
October27
12:00UTC (8:00a.m. AST)– Tropical Depression Fourteen develops from an area of low pressure approximately 815mi (1,310km) south-southwest of the westernmost Azores.[19]
October29
18:00UTC (1:00p.m. EST)– Tropical Depression Fifteen develops from an area of low pressure about 10mi (20km) south-southwest of Prinzapolka, Nicaragua.[20]
October30
00:00UTC (7:00p.m. AST, October29)– Tropical Depression Fourteen intensifies into Tropical Storm Lorenzo and simultaneously attains its peak intensity with maximum sustained winds of 40mph (65km/h) and a minimum barometric pressure of 1007mbar (hPa; 29.74inHg) about 1,070mi (1,720km) southwest of the westernmost Azores.[19]
October31
12:00UTC (7:00a.m. AST)– Tropical Storm Lorenzo merges with a frontal zone roughly 690mi (1,110km) west of the westernmost Azores.[19]
November
November1
00:00UTC (7:00p.m. EST, October31)– Tropical Depression Fifteen intensifies into Tropical Storm Michelle about 60mi (95km) north of Cabo Gracias a Dios, Nicaragua.[20]
November2
12:00UTC (7:00a.m. EST)– Tropical Storm Michelle intensifies into a Category1 hurricane roughly 200mi (320km) southwest of Grand Cayman.[20]
November3
00:00UTC (7:00p.m. EST, November2)– Hurricane Michelle intensifies into a Category2 hurricane approximately 180mi (290km) west-southwest of Grand Cayman.[20]
06:00UTC (1:00a.m. EST)– Hurricane Michelle intensifies into a Category3 hurricane about 195mi (315km) west of Grand Cayman.[20]
12:00UTC (7:00a.m. EST)– Hurricane Michelle intensifies into a Category4 hurricane roughly 195mi (315km) west of Grand Cayman.[20]
18:00UTC (1:00p.m. EST)– Hurricane Michelle weakens to a Category3 hurricane but attains its minimum barometric pressure of 938mbar (hPa; 27.70inHg) approximately 180mi (290km) west of Grand Cayman.[20]
November4
00:00UTC (7:00p.m. EST, November3)– Hurricane Michelle re-intensifies into a Category4 hurricane about 155mi (250km) west-northwest of Grand Cayman.[20]
00:00UTC (7:00p.m. EST, November3)– A subtropical storm develops from an area of low pressure approximately 890mi (1,430km) south of Cape Race, Newfoundland.[21]
06:00UTC (1:00a.m. EST)– Hurricane Michelle attains its peak winds of 140mph (220km/h) roughly 135mi (215km) northwest of Grand Cayman.[20]
18:00UTC (1:00p.m. EST)– Hurricane Michelle makes its first landfall near Cayo Largo del Sur, Cuba, with winds of 140mph (220km/h).[20]
23:00UTC (6:00p.m. EST)– Hurricane Michelle makes its second landfall near Bay of Pigs, Cuba, with winds of 130mph (210km/h).[20]
November5
00:00UTC (7:00p.m. EST, November4)– Hurricane Michelle weakens to a Category3 hurricane approximately 30mi (50km) south of Colón, Cuba.[20]
06:00UTC (1:00a.m. EST)– Hurricane Michelle weakens to a Category1 hurricane about 200mi (320km) southwest of Nassau, Bahamas.[20]
12:00UTC (7:00a.m. EST)– Hurricane Michelle makes its third landfall on Andros, Bahamas, with winds of 90mph (150km/h).[20]
12:00UTC (7:00a.m. AST)– The subtropical storm intensifies into Hurricane Noel and simultaneously attains its peak intensity with maximum sustained winds of 75mph (120km/h) and a minimum barometric pressure of 986mbar (hPa; 29.12inHg) roughly 615mi (990km) south-southeast of Cape Race, Newfoundland.[21]
18:00UTC (1:00a.m. EST)– Hurricane Michelle makes its fourth and final landfall on Eleuthera, Bahamas, with winds of 85mph (135km/h).[20]
November6
00:00UTC (7:00p.m. EST, November5)– Hurricane Michelle transitions into an extratropical cyclone about 200mi (320km) northeast of Nassau, Bahamas.[20]
00:00UTC (7:00p.m. AST, November5)– Hurricane Noel weakens to a tropical storm roughly 505mi (815km) south-southeast of Cape Race, Newfoundland.[21]
12:00UTC (7:00a.m. AST)– Tropical Storm Noel transitions into an extratropical cyclone approximately 330mi (530km) southeast of Cape Race, Newfoundland.[21]
November7
00:00UTC (7:00p.m. EST, November6)– The extratropical remnants of Michelle are absorbed by a frontal system well southwest of Bermuda.[20]
00:00UTC (7:00p.m. EST, November6)– The extratropical remnants of Noel are absorbed by an extratropical low well southeast of Newfoundland.[21]
November24
00:00UTC (7:00p.m. AST, November23)– Subtropical Storm Two develops from an area of low pressure about 900mi (1,450km) east-southeast of Bermuda.[22]
12:00UTC (7:00a.m. AST)– Subtropical Storm Two transitions into Tropical Storm Olga roughly 910mi (1,465km) east-southeast of Bermuda.[22]
November26
12:00UTC (7:00a.m. AST)– Tropical Storm Olga intensifies into a Category1 hurricane approximately 535mi (860km) east-southeast of Bermuda.[22]
November27
06:00UTC (1:00a.m. AST)– Hurricane Olga attains its peak intensity with maximum sustained winds of 90mph (150km/h) and a minimum barometric pressure of 973mbar (hPa; 28.74inHg) about 455mi (730km) east of Bermuda.[22]
November29
06:00UTC (1:00a.m. AST)– Hurricane Olga weakens to a tropical storm roughly 415mi (670km) southeast of Bermuda.[22]
November30
The 2001 Atlantic hurricane season officially ends.[2]
12:00UTC (7:00a.m. AST)– Tropical Storm Olga weakens to a tropical depression approximately 545mi (875km) south-southwest of Bermuda.[22]
December
December2
00:00UTC (7:00p.m. AST, December1)– Tropical Depression Olga re-intensifies into a tropical storm about 660mi (1,060km) south-southwest of Bermuda.[22]
December4
00:00UTC (7:00p.m. AST, December3)– Tropical Storm Olga weakens to a tropical depression for a second time roughly 405mi (650km) southwest of Bermuda.[22]
December5
00:00UTC (7:00p.m. AST, December4)– Tropical Depression Olga dissipates approximately 690mi (1,110km) east of Nassau, Bahamas.[22]
The figures for maximum sustained winds and position estimates are rounded to the nearest 5units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's operational products for each storm. All other units are rounded to the nearest digit.
Richard J. Pasch; Daniel P. Brown (November 20, 2001). Tropical Cyclone Report: Hurricane Erin(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 2, 4, 5. Retrieved January 5, 2017.
Miles B. Lawrence; Eric S. Blake (April 12, 2002). Tropical Cyclone Report: Hurricane Gabrielle(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 2, 4, 5. Retrieved January 5, 2017.
James L. Franklin (October 30, 2001). Tropical Cyclone Report: Hurricane Humberto(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 2, 4, 5. Retrieved January 5, 2017.
Richard J. Pasch; Daniel P. Brown (November 30, 2001). Tropical Cyclone Report: Tropical Storm Jerry(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 3. Retrieved January 5, 2017.
Jack L. Beven II (January 23, 2002). Tropical Cyclone Report: Hurricane Michelle(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 2, 6. Retrieved January 5, 2017.
James L. Franklin (November 14, 2001). Tropical Cyclone Report: Hurricane Noel(PDF) (Report). Miami, Florida: National Hurricane Center. pp.1, 3. Retrieved January 5, 2017.