2001 Atlantic hurricane season
| 2001 Atlantic hurricane season | |
|---|---|
Season summary map
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| Seasonal boundaries | |
| First system formed | June 5, 2001 |
| Last system dissipated | December 4, 2001 |
| Strongest storm | |
| Name | Michelle |
| • Maximum winds | 140 mph (220 km/h) (1-minute sustained) |
| • Lowest pressure | 933 mbar (hPa; 27.55 inHg) |
| Seasonal statistics | |
| Total depressions | 17 |
| Total storms | 15 |
| Hurricanes | 9 |
| Major hurricanes (Cat. 3+) |
4 |
| Total fatalities | 105 |
| Total damage | $7.1 billion (2001 USD) |
| Related articles | |
| Tropical storm (SSHWS) | |
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| Duration | June 5 – June 17 |
|---|---|
| Peak intensity | 60 mph (95 km/h) (1-min) 1000 mbar (hPa) |
| Tropical depression (SSHWS) | |
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| Duration | July 11 – July 12 |
|---|---|
| Peak intensity | 30 mph (45 km/h) (1-min) 1010 mbar (hPa) |
| Tropical storm (SSHWS) | |
.jpg)  |
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| Duration | August 2 – August 7 |
|---|---|
| Peak intensity | 70 mph (110 km/h) (1-min) 990 mbar (hPa) |
| Tropical storm (SSHWS) | |
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| Duration | August 14 – August 22 |
|---|---|
| Peak intensity | 70 mph (110 km/h) (1-min) 997 mbar (hPa) |
| Tropical storm (SSHWS) | |
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| Duration | August 22 – August 28 |
|---|---|
| Peak intensity | 70 mph (110 km/h) (1-min) 994 mbar (hPa) |
| Category 3 hurricane (SSHWS) | |
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| Duration | September 1 – September 15 |
|---|---|
| Peak intensity | 120 mph (195 km/h) (1-min) 968 mbar (hPa) |
| Category 3 hurricane (SSHWS) | |
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| Duration | September 7 – September 19 |
|---|---|
| Peak intensity | 115 mph (185 km/h) (1-min) 962 mbar (hPa) |
| Category 1 hurricane (SSHWS) | |
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| Duration | September 11 – September 19 |
|---|---|
| Peak intensity | 80 mph (130 km/h) (1-min) 975 mbar (hPa) |
| Tropical depression (SSHWS) | |
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| Duration | September 19 – September 20 |
|---|---|
| Peak intensity | 35 mph (55 km/h) (1-min) 1005 mbar (hPa) |
The 2001 Atlantic hurricane season was a fairly active Atlantic hurricane season that produced 17 tropical cyclones, 15 named storms, nine hurricanes, and four major hurricanes. The season officially lasted from June 1, 2001, to November 30, 2001, dates which by convention limit the period of each year when tropical cyclones tend to form in the Atlantic Ocean basin. The season began with Tropical Storm Allison on June 4, and ended with Hurricane Olga, which dissipated on December 6. The most intense storm was Hurricane Michelle, which attained Category 4 strength on the Saffir–Simpson Hurricane Scale.
The most damaging storms of the season were Tropical Storm Allison, which caused extensive flooding in Texas, Hurricane Iris, which struck Belize, and Hurricane Michelle, which affected several countries. Three tropical cyclones made landfall on the United States, three directly affected Canada, and three directly affected Mexico and Central America. Overall, the season caused 105 fatalities, and $7.1 billion (2001 USD; $9.6 billion 2014 USD) in damage. Due to their severe damage, the names Allison, Iris, and Michelle were retired by the World Meteorological Organization.
Forecasts of hurricane activity are issued before each hurricane season by noted hurricane experts Philip J. Klotzbach, William M. Gray, and their associates at Colorado State University; and separately by NOAA forecasters.
Klotzbach's team (formerly led by Gray) defined the average number of storms per season (1950 to 2000) as 9.6 tropical storms, 5.9 hurricanes, 2.3 major hurricanes (storms reaching at least Category 3 strength in the Saffir-Simpson Hurricane Scale) and ACE Index 96.1.NOAA defines a season as above-normal, near-normal or below-normal by a combination of the number of named storms, the number reaching hurricane strength, the number reaching major hurricane strength and ACE Index.
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