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Tropical Depression Nine of the 2000 Atlantic hurricane season was a weak tropical cyclone that lightly affected parts of the Gulf Coast. Developing on September 8 from the interaction of a persistent low-level trough and a cluster of convection associated with a tropical wave, the depression reached peak winds of Template:Convert/mph that same day. The depression was short-lived, weakening just prior to landfall near Sabine Pass, Texas on September 9. Over land, it rapidly degenerated into a remnant low. Despite being a weak storm, squalls to the east of the center generated tropical storm-force gusts over open water, and dropped moderate to heavy rainfall throughout the western Gulf Coast.

Meteorological historyEdit

The origins of Tropical Depression Nine are from the interaction of a persistent low-level trough and a cluster of convection associated with a tropical wave. The system moved north-northwestward from the Yucatan Peninsula, and on September 8 an ill-defined low-level center formed about 180 mi (Template:Convert/km) south of Lake Charles, Louisiana. Surface observations estimate that a tropical depression formed at 1800 UTC that same day.[1] With a broad circulation, the depression was predicted to move ashore near Cameron, Louisiana within 8–10 hours.[2] Due to the storm's close proximity to land, it never managed to strengthen beyond winds of Template:Convert/mph.[1] The depression remained fairly disorganized, and late on September 8, ship reports indicated the possibility that two low-level centers existed within an elongated low pressure system; one center was located at 26.5°N 93.5°W, while the main was situated closer to the area of deep convection.[3] Tracking northward at Template:Convert/mph with a minimum central pressure of 1007 mbar (hPa; 29.74 inHg),[4] the closed circulatory center dissipated, and the depression weakened just at or before landfall.[5] The weak low moved ashore near Sabine Pass, Texas at 1000 UTC on September 9, and rapidly dissipated over land.[1]

ImpactEdit

Despite being a weak storm, associated squalls to the east of the center produced gusts up to tropical storm-force. A Template:Convert/mph gust was reported at buoy 42001, and buoy 42041 reported a Template:Convert/mph gust.[1] The depression dropped heavy rainfall throughout portions of Texas, Louisiana, Mississippi and Alabama, peaking at Template:Convert/in at Buras, Louisiana. Waveland, Mississippi reported Template:Convert/in, and Template:Convert/in of rain fell on Dauphin Island, Alabama.[6] Light rainfall was reported as far north as Arkansas and Kentucky[7] and as far east as Florida. As a result of the rain, flash flood watches were posted for parts of Louisiana.[8]

ReferencesEdit

  1. 1.0 1.1 1.2 1.3 Jack Beven (2000). "Tropical Cyclone Report: Tropical Depression Nine". National Hurricane Center. http://www.nhc.noaa.gov/2000nine.html. Retrieved 2008-08-01. 
  2. Stewart (2000). "Tropical Depression Nine Discussion Number 1". National Hurricane Center. http://www.nhc.noaa.gov/archive/2000/dis/NAL0900.001.html. Retrieved 2008-08-01. 
  3. Stewart (2000). "Tropical Depression Nine Discussion Number Two". National Hurricane Center. http://www.nhc.noaa.gov/archive/2000/dis/NAL0900.002.html. Retrieved 2008-08-01. 
  4. Stewart (2000). "Tropical Depression Two Public Advisory Number 2". National Hurricane Center. http://www.nhc.noaa.gov/archive/2000/pub/PAL0900.002.html. Retrieved 2008-08-01. 
  5. Lawrence (2000). "Tropical Depression Nine Discussion Number 3". National Hurricane Center. http://www.nhc.noaa.gov/archive/2000/pub/PAL0900.003.html. Retrieved 2008-08-01. 
  6. David Roth (2000). "Tropical Cyclone Rainfall for the Gulf Coast". Hydrometeorological Prediction Center. http://www.hpc.ncep.noaa.gov/tropical/rain/tcgulfcoast.html. Retrieved 2008-08-01. 
  7. David Roth (2000). "Rainfall Summary for Tropical Depression Nine". Hydrometeorological Prediction Center. http://www.hpc.ncep.noaa.gov/tropical/rain/td92000.html. Retrieved 2008-08-01. 
  8. Staff Writer (2000). "Heavy rains from tropical depression". The Argus-Press. Associated Press (CNN). http://news.google.com/newspapers?id=8D4iAAAAIBAJ&sjid=sqwFAAAAIBAJ&pg=5618,729663&dq=tropical+depression&hl=en. Retrieved 2008-09-15. 

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