tropical storm allison 2001 track

Because of this, the name Allison was retired from being used by the National Hurricane Center. Tropical Storm Allison- Carolina.gif 642 × 482; 343 KB Tropical Storm Allison- Eye.jpg 506 × 480; 124 KB Tropical Storm Allison- Peak.JPG 6,300 × 7,300; 26.26 MB Yet, to statistically place the damage Allison caused in Harris County into perspective, consider the following facts:Allison looped back to the southwest – drawing new moisture off the Gulf and re-intensifying.
Because of this, the name Allison was retired from being used by the National Hurricane Center. Allison tracked slowly northward across western portions of Houston, TX, during the night of 5 June, deluging areas with 152-254 millimeters (6-10 inches) of rain in less than 5 hours.

Allison caused a 0.76-meter (2.5 foot) storm surge in the southern town of Cameron, LA, which resulted in the flooding of several sections of Louisiana Highway 82.

Tropical Storm Allison 2001 Allison's long and complex career began on 5 June as an area of disturbed weather over the northwestern Gulf of Mexico developed into a tropical storm. The information developed as a result of TSARP has been provided to the public, government officials and numerous other Harris County stakeholders, so that they can make informed, scientifically-based flood management decisions about the places in which they work and reside.Each of Harris County's 35 communities is responsible for planning and regulating land development projects within its municipal boundaries.

That night, it made landfall west of Galveston, with sustained winds of 50 miles per hour.Hovering over Harris County initially for four hours, it dumped as much as 12 inches of rain and flooded some 800 residences as it drifted slowly to the north. These map updates were made with reference to the original data from the first comprehensive effort.As a result of TSARP, not only were Harris County's floodplains entirely remapped, but brand new and more accurate data and computer models were created using important advances in science and technology.TSARP was a massive undertaking involving extensive use of a sophisticated laser technology called Light Detection and Ranging, commonly referred to as LiDAR, to map the ground's topography.Developed by NASA, this laser technology has already been successfully employed by FEMA on other important projects, including recovery efforts at Ground Zero after the 9-11 attacks.The use of LiDAR for the Tropical Storm Allison Recovery Project involved directing millions of laser beams toward the ground from low-flying aircraft, and measuring the time it took for that light to bounce off the earth and back to the recording equipment on the plane.
A tropical wave moved off the coast of Africa on May 21, 2001. FEMA uses Flood Insurance Rate maps (FIRMs or floodplain maps) to help determine flood risk zones and associated rates for flood insurance policies.For many, the new FEMA Flood Insurance Rate Map for Harris County had little or no impact on their flood zone designation and associated policy rate, and for some, their status actually improved. Nearly 90% of the total losses for Tropical Storm Allison occurred in the Houston metropolitan area. For that reason, the NFIP created a "Grandfather Rule" that allowed alternative rating rules for certain structures. Tropical Storm Allison - June 4-18, 2001. Since that time, updates for particular areas have occurred to reflect changes in conditions resulting from things such as land development and the completion of flood damage reduction projects.

TSARP has provided access to more accurate flood risk information, and it allows community planners and engineers to make decisions based on up-to-date technology and conditions. The 2001 Hurricane Season had barely been proclaimed on June 1, when Tropical Storm Allison formed in the western Gulf of Mexico. Tropical Storm Allison rainfall along the Gulf Coast for June 5-10, 2001 The first significant flood event associated with Allison occurred during landfall on June 5th. Tropical Storm Allison (2001) | Hurricane History - YouTube

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