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TS2
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Notable Cyclones Part VI: Hurricane Rita (2005)
      #74971 - Fri May 25 2007 11:55 AM

I'm changing the Cyclone from Flora to Rita so here is my 6th entry.

Hurricane Rita was the fourth-most intense Atlantic hurricane ever recorded and the most intense tropical cyclone ever observed in the Gulf of Mexico. Rita caused $11.3 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.

Rita made landfall on September 24 near the Texas-Louisiana border as a Category 3 hurricane on the Saffir-Simpson Hurricane Scale. It continued on through parts of southeast Texas. The storm surge caused extensive damage along the Louisiana and extreme southeastern Texas coasts and completely destroyed some coastal communities. The storm killed seven people directly; many others died in evacuations and from indirect effects.

CIMSS Rita Track Montage
Figure 1: The Track of Hurricane Rita with images of the Cyclone at Specific Times.
Image Credit: NOAA/CIMSS

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.

Rita was slow to become a hurricane; National Hurricane Center reports early on September 20 estimated the storm's sustained surface winds at hurricane force (65 knots or 75 mph). However, Rita lacked a complete eyewall; forecasters identified Rita as a tropical storm with 60 knots (70 mph) 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 86 knots (100 mph) maximum sustained winds.

Warm 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 121 knots (140 mph). Rita continued to gain strength unabated. An update at 2:15 p.m. CDT (1815 UTC) said maximum winds had increased to 120 knots (150 mph) and Rita's minimum pressure was 920 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 143 knots (165 mph). At 6:50 p.m. CDT, a reconnaissance aircraft recorded pressure of 899 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 156 knots (180 mph) and an estimated minimum pressure of 895 hPa.


Figure 2: Hurricane Rita at peak strength.
Image Credit: NRL


Figure 3: Hurricane Rita at Landfall on the Gulf Coast

The use of the name "Rita" reflects the record-breaking activity of the 2005 hurricane season: only once before had a name starting with "R" (the seventeenth name in the list each season) been used for an Atlantic storm, in 1995 for Hurricane Roxanne. Rita was, actually, the third seventeenth storm to form in a season since tropical storm naming began in 1950. However, in the 1969 season, under less-sophisticated forecasting systems, many tropical storms were not named; the seventeenth storm of 1969 was named Hurricane Martha.

Other records set by Rita:

Earliest 17th named storm in Atlantic hurricane season
Fourth most-intense storm in Atlantic basin
Greatest one-hour pressure drop in Atlantic basin
Most intense hurricane in the Gulf of Mexico (breaking record set by Hurricane Katrina three weeks earlier)

My next post will be about Hurricane Gilbert (1988)

--------------------
Dr. Joe Smith

Substitute Teacher at University of Central Florida

GreatWeatherForums




Edited by danielw (Sun May 27 2007 12:31 AM)


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dem05
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Posts: 368
Loc: Port Charlotte, FL
Re: Notable Cyclones Part VI: Hurricane Rita (2005) [Re: TS2]
      #74999 - Sun May 27 2007 12:01 AM Attachment (386 downloads)

I like that you are doing this. Here's a picture for ya. For work purposes, I was in Marathon in the Middle Keys when Rita and Wilma went though. This is a picute I took during Rita from the second floor window of the Monroe County Government Bldg. Wilma was much worse, and being at the highest point on the island, we watched the storm surge roll through (I have pics of that too). Folks...Always pay attention to those evacuation orders for storm surge, Florida Keys and/or no matter where you reside!!! Trust me.

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