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On August 23 - 31, 2005 Hurricane Katrina caused devastation on the Gulf Coast region of the USA. Here are some facts about Hurricane Katrina. Hurricane
Katrina was the
costliest and one of the deadliest hurricanes in the history of the United
States. It was the eleventh named storm, fifth hurricane, third major hurricane,
and second Category 5 hurricane of the 2005 Atlantic hurricane season, and was
the sixth-strongest Atlantic hurricane ever recorded. Katrina
maintained hurricane strength well into Mississippi, but weakened thereafter,
finally losing hurricane strength more than 150 mi (240 km) inland, near
Jackson, Mississippi. It was downgraded further to a tropical depression near
Clarksville, Tennessee and literally broke in half. One half continued to race
northward, and was last distinguishable in the eastern Great Lakes region on
August 31, while the other half slowly dissipated over the Southeast, producing
a significant tornado outbreak from Georgia to Pennsylvania. On August 31,
Katrina was absorbed by a frontal boundary and became a powerful extratropical
low, causing moderate rain and gale-force winds in southeastern Quebec. By 11:00
PM EDT August 31 (0300 UTC September 1), no discernible circulation remained of
the former major hurricane, at which point Katrina was dead. Hurricane
Rita is the
fourth-most intense Atlantic hurricane ever recorded and the most intense
tropical cyclone observed in the Gulf of Mexico. Rita caused $10 billion in
damage on the U.S. Gulf Coast in September 2005. Rita was the seventeenth named
storm, tenth hurricane, fifth major hurricane, and third Category 5 hurricane of
the 2005 Atlantic hurricane season. Storm
History - The storm system that became Rita formed at the tail of an old frontal
boundary, where convection and low-level circulation around an upper-level low
developed steadily for over two days. A surface low formed near the disturbance,
and the season's 18th tropical depression soon formed east of the Turks and
Caicos. Less than a day after forming, the depression became the 17th tropical
storm of the season on September 18 and was named Rita. A mandatory evacuation
was ordered for the entire Florida Keys. Hurricane
Rita at its peak.Rita was slow to become a hurricane; National Hurricane Center
(NHC) reports early on September 20 estimated the storm's sustained surface
winds at hurricane force (75 mph or 120 km/h). However, Rita lacked a complete
eyewall; forecasters identified Rita as a tropical storm with 70 mph (110 km/h)
winds overnight. Aircraft observations released at 9:45 a.m. EDT showed a closed
eyewall and winds clearly at hurricane strength. Four hours later, the NHC
reported that Rita had reached Category 2 hurricane strength, with 100 mph (160
km/h) maximum sustained winds. Hurricane
Rita making its final landfallWarm water in the Gulf of Mexico, 1° F (0.5 °C)
above average, favored storm intensification. As Rita entered the Gulf, rapid
intensification began. National Hurricane Center advisories issued every three
hours each showed strengthening from 5 p.m. EDT on September 20 to 11 a.m. EDT
on September 21, when Rita's maximum sustained winds increased to 140 mph (225
km/h). Rita continued to gain strength unabated. An update at 2:15 p.m. CDT
(1815 UTC) said maximum winds had increased to 150 mph (240 km/h) and Rita's
minimum pressure was 920 mbar (hPa). Less than two hours later, at 3:55 p.m.
CDT, another update reported that Rita had strengthened to a Category 5
hurricane, with maximum wind speeds of 165 mph (265 km/h). At 6:50 p.m. CDT, a
reconnaissance aircraft recorded pressure of 899 mbar (hPa) away from the
storm's center; the actual central pressure was thought to be lower still. At 10
p.m. CDT, Rita reached its maximum intensity, with sustained winds of 180 mph
(290 km/h) and an estimated minimum pressure of 895 mbar (hPa), (26.43 in Hg). Hurricane
Rita encountering the Gulf Loop Current and Eddy Vortex.Hurricane Rita's rapid
intensification may in part be attributed to its passage over the Gulf Loop
Current and Eddy Vortex.
Lt. Col. Warren Madden, a Hurricane Hunter and meteorologist for The
Weather Channel, recorded a peak wind gust of 235 mph (380 km/h) while flying in
the eye of the storm, and called Rita "the strongest storm that I've ever
been in." Rita's intense winds destroyed or disabled several buoy-based
weather stations. Rita made
landfall between Sabine Pass, Texas, and Johnson's Bayou, Louisiana, at 02:38
CDT (07:38 UTC) on September 24, 2005 as a category 3 Hurricane with winds at
115mph. Rita lost both hurricane and tropical storm status the day of landfall.
Rita's remnants — technically an extensive low pressure area — moved quickly
out of the lower Mississippi Valley and were absorbed by a cold front. The
Hydrometeorological Prediction Center ceased monitoring Tropical Depression Rita
early on September 26. |
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