An Opinion on Cause of Damage Contents Introduction
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Hurricane Katrina Damage Survey
P 7.5 HURRICANE KATRINA DAMAGE SURVEY Timothy P. Marshall* Haag Engineering Co. Dallas, Texas 1. INTRODUCTION TABLE 1 The author conducted aerial and ground damage SAFFIR-SIMPSON SCALE surveys along the Mississippi and Alabama coasts after Hurricane Katrina. The purpose of these surveys was NO. WIND* (mph) SURGE (ft) to: 1) determine the height of the storm surge, 2) 1 74-95 4-5 acquire wind velocity data, 3) determine the timing of 2 96-110 6-8 each, and 4) assess the performance of buildings 3 111-130 9-12 exposed to wind and water effects. Particular emphasis 4 131-155 13-18 was placed on delineating wind and water damage. 5 >155 >18 Survey work is continuing at this time and thus, the *sustained wind (1 minute average) results presented herein are preliminary and subject to change. According to Knabb et al. (2005), Hurricane Katrina The author rode out Hurricane Katrina in Slidell, LA formed from a tropical wave that traveled westward then conducted hundreds of site specific inspections in across the Atlantic Ocean from Africa. It crossed the months following the hurricane. Most buildings southern Florida on 25 August 2005 at category 1 examined were wood-framed structures constructed on hurricane then weakened briefly over land before re- various foundations to include concrete slab, pier and emerging over the Gulf of Mexico. Rapid beam, timber pilings, or masonry piers. Various intensification occurred and by 27 August 2005 Katrina building failure modes were observed. Typically, wind intensified to Category 5 strength while in the central exploited poorly anchored or attached roofs and vinyl Gulf. -
1 Tropical Cyclone Report Hurricane Charley 9-14 August 2004 Richard
Tropical Cyclone Report Hurricane Charley 9-14 August 2004 Richard J. Pasch, Daniel P. Brown, and Eric S. Blake National Hurricane Center 18 October 2004 (Revised 15 September 2011) Hurricane Charley strengthened rapidly just before striking the southwestern coast of Florida as a Category 4 hurricane on the Saffir-Simpson Hurricane Scale. Charley was the strongest hurricane to hit the United States since Andrew in 1992 and, although small in size, it caused catastrophic wind damage in Charlotte County, Florida. Serious damage occurred well inland over the Florida peninsula. a. Synoptic History A tropical wave emerged from western Africa on 4 August. Radiosonde data from Dakar showed that this wave was accompanied by an easterly jet streak of around 55 kt near the 650 mb level. The wave also produced surface pressure falls on the order of 5 mb over 24 h near the west coast of Africa. On satellite images this system was not particularly impressive just after crossing the coast, since it had only a small area of associated deep convection. As the wave progressed rapidly westward across the tropical Atlantic, the cloud pattern gradually became better organized, with cyclonic turning becoming more evident in the low clouds. The first center position estimates were given by the Tropical Analysis and Forecast Branch (TAFB) and the Satellite Analysis Branch (SAB) in the vicinity of 9-10ºN, 47ºW at 2345 UTC 7 August, although at that time the system was still too weak to classify by the Dvorak technique. The first Dvorak T-numbers were assigned 24 h later, when the system was centered near 11ºN, 55ºW. -
The 1906 Earthquake and Public Policy — an Invited Comment
Volume XXX Number 5 May 2006 Windows of Opportunity The 1906 Earthquake and Public Policy — an invited comment Megadisasters change the social and political land- Not Beyond Our Control scape as effectively as they change the physical landscape. The 1906 San Francisco earthquake was the fi rst of Such changes were evident after the 1906 San Francisco several earthquakes in the past 100 years that acted as a cat- earthquake, and they are taking place now as we observe alyst to public policy change in California. While small and the slow recovery of New Orleans. The 1906 earthquake large earthquakes outside of the state proved to be learning and, in fact, earthquakes in general, are both a blessing and opportunities for scientists and engineers, no single event a curse when viewed through a public policy perspective. has been nearly as great a force in public policy change While they bring public and media attention to the hazard, as the massive 1906 jolt. Because of the 1906 earthquake, they are also accompanied by a desire to rebuild as quickly California state and local governments no longer consider as possible and the shared common belief that if a commu- earthquakes and their effects to be beyond human control. nity survived one earthquake, it will survive the next. They now recognize that while these events may be inevi- table, their impacts can be better understood and managed 3,000 deaths, the offi cial U.S. Army relief operations staff through targeted scientifi c investigations. noted only 664 deaths in the region.3 San Francisco public This perspective was supported by a small group of Bay offi cials simply denied that most of the disaster fatalities Area political Progressives who were dedicated to chang- happened in the fi rst place. -
Hurricane Laura Tropical Cyclone Report Has Been Posted
NATIONAL HURRICANE CENTER TROPICAL CYCLONE REPORT HURRICANE LAURA (AL132020) 20–29 August 2020 Richard J. Pasch, Robbie Berg, David P. Roberts, and Philippe P. Papin National Hurricane Center 26 May 2021 GOES-16 GEOCOLOR VISIBLE IMAGE OF HURRICANE LAURA NEARING PEAK INTENSITY AT 2300 UTC 26 AUGUST 2020. IMAGE COURTESY OF NOAA/NESDIS/STAR. Laura was a powerful category 4 hurricane (on the Saffir-Simpson Hurricane Wind Scale) that made landfall near Cameron, Louisiana, accompanied by a catastrophic storm surge of up to 18 feet above ground level. Laura was responsible for 47 direct deaths in the United States and Hispaniola, and about $19 billion in damage in the United States. Hurricane Laura 2 Table of Contents SYNOPTIC HISTORY ................................................................................................... 3 METEOROLOGICAL STATISTICS .............................................................................. 4 Winds and Pressure ................................................................................................... 5 Storm Surge ............................................................................................................... 6 Rainfall and Flooding .................................................................................................. 8 Tornadoes .................................................................................................................. 8 CASUALTY AND DAMAGE STATISTICS ................................................................... 8 FORECAST AND WARNING -
HURRICANE SALLY (AL192020) 11–17 September 2020
NATIONAL HURRICANE CENTER TROPICAL CYCLONE REPORT HURRICANE SALLY (AL192020) 11–17 September 2020 Robbie Berg and Brad J. Reinhart National Hurricane Center 14 April 2021 GOES-EAST GEOCOLOR IMAGE OF HURRICANE SALLY AT 0930 UTC 16 SEPTEMBER 2020, JUST BEFORE IT MADE LANDFALL ON THE COAST OF ALABAMA (IMAGE COURTESY OF NOAA/NESDIS/STAR) Sally was an erratic hurricane, both in its track and intensity, that made landfall along the coast of Alabama at category 2 intensity (on the Saffir-Simpson Hurricane Wind Scale). Sally produced hurricane-force winds along the coasts of Alabama and the western Florida Panhandle, a complex pattern of storm surge flooding along much of the central and northeastern U.S. Gulf coast, and record river flooding resulting from heavy rainfall. Sally is responsible for four direct fatalities in Florida, Alabama, and Georgia and caused 7.3 billion USD in damage in the United States. Hurricane Sally 2 Table of Contents SYNOPTIC HISTORY .......................................................................................... 3 METEOROLOGICAL STATISTICS ...................................................................... 4 Winds and Pressure ........................................................................................... 5 Storm Surge ....................................................................................................... 7 Rainfall and Flooding ......................................................................................... 8 Tornadoes ......................................................................................................... -
NEW GULF of MEXICO SEAFLOOR MAP Discover Your Skills for Innovative Data Storytelling
VOL. 98 NO. 8 AUG 2017 Finding the Pulse of Climate Change Cyclists’ Exposure to Air Pollution Earth & Space Science News Data Set for Land–Air Exchanges NEW GULF OF MEXICO SEAFLOOR MAP Discover Your Skills for Innovative Data Storytelling. Apply for the AGU Data Visualization and Storytelling Competition! Win a chance to go to Fall Meeting and present your story on the NASA Hyperwall. Deadline for submission: 31 August Learn more: http://bit.ly/agu-dataviz-story-contest Earth & Space Science News Contents AUGUST 2017 PROJECT UPDATE VOLUME 98, ISSUE 8 22 Understanding the Causes and Effects of Rapid Warming in the Arctic A new German research consortium is investigating why near-surface air temperatures are rising more quickly in the Arctic than in the rest of the world. PROJECT UPDATE 28 A New Data Set Monitors Land–Air Exchanges FLUXNET2015, the latest update of the longest global record of ecosystem carbon, water, and energy fluxes, features improved data quality, new data products, 16 and more open data-sharing policies. OPINION COVER Proposed Federal Budget A 1.4- Billion- Pixel Map 12 Heightens Hurricane Risk The health, welfare, and livelihood of of the Gulf of Mexico Seafloor millions depend upon our elected officials’ The U.S. Bureau of Ocean Energy Management has released the highest-resolution continued and robust support for hurricane bathymetry map of the region to date. research. Earth & Space Science News Eos.org // 1 Contents DEPARTMENTS Editor in Chief Barbara T. Richman: AGU, Washington, D. C., USA; eos_ [email protected] Editors Christina M. S. Cohen Wendy S.