Remembering Hurricane Floyd's Wave of Destruction
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Richmond, VA Hurricanes
Hurricanes Influencing the Richmond Area Why should residents of the Middle Atlantic states be concerned about hurricanes during the coming hurricane season, which officially begins on June 1 and ends November 30? After all, the big ones don't seem to affect the region anymore. Consider the following: The last Category 2 hurricane to make landfall along the U.S. East Coast, north of Florida, was Isabel in 2003. The last Category 3 was Fran in 1996, and the last Category 4 was Hugo in 1989. Meanwhile, ten Category 2 or stronger storms have made landfall along the Gulf Coast between 2004 and 2008. Hurricane history suggests that the Mid-Atlantic's seeming immunity will change as soon as 2009. Hurricane Alley shifts. Past active hurricane cycles, typically lasting 25 to 30 years, have brought many destructive storms to the region, particularly to shore areas. Never before have so many people and so much property been at risk. Extensive coastal development and a rising sea make for increased vulnerability. A storm like the Great Atlantic Hurricane of 1944, a powerful Category 3, would savage shorelines from North Carolina to New England. History suggests that such an event is due. Hurricane Hazel in 1954 came ashore in North Carolina as a Category 4 to directly slam the Mid-Atlantic region. It swirled hurricane-force winds along an interior track of 700 miles, through the Northeast and into Canada. More than 100 people died. Hazel-type wind events occur about every 50 years. Areas north of Florida are particularly susceptible to wind damage. -
Hurricane & Tropical Storm
5.8 HURRICANE & TROPICAL STORM SECTION 5.8 HURRICANE AND TROPICAL STORM 5.8.1 HAZARD DESCRIPTION A tropical cyclone is a rotating, organized system of clouds and thunderstorms that originates over tropical or sub-tropical waters and has a closed low-level circulation. Tropical depressions, tropical storms, and hurricanes are all considered tropical cyclones. These storms rotate counterclockwise in the northern hemisphere around the center and are accompanied by heavy rain and strong winds (NOAA, 2013). Almost all tropical storms and hurricanes in the Atlantic basin (which includes the Gulf of Mexico and Caribbean Sea) form between June 1 and November 30 (hurricane season). August and September are peak months for hurricane development. The average wind speeds for tropical storms and hurricanes are listed below: . A tropical depression has a maximum sustained wind speeds of 38 miles per hour (mph) or less . A tropical storm has maximum sustained wind speeds of 39 to 73 mph . A hurricane has maximum sustained wind speeds of 74 mph or higher. In the western North Pacific, hurricanes are called typhoons; similar storms in the Indian Ocean and South Pacific Ocean are called cyclones. A major hurricane has maximum sustained wind speeds of 111 mph or higher (NOAA, 2013). Over a two-year period, the United States coastline is struck by an average of three hurricanes, one of which is classified as a major hurricane. Hurricanes, tropical storms, and tropical depressions may pose a threat to life and property. These storms bring heavy rain, storm surge and flooding (NOAA, 2013). The cooler waters off the coast of New Jersey can serve to diminish the energy of storms that have traveled up the eastern seaboard. -
Florida Hurricanes and Tropical Storms
FLORIDA HURRICANES AND TROPICAL STORMS 1871-1995: An Historical Survey Fred Doehring, Iver W. Duedall, and John M. Williams '+wcCopy~~ I~BN 0-912747-08-0 Florida SeaGrant College is supported by award of the Office of Sea Grant, NationalOceanic and Atmospheric Administration, U.S. Department of Commerce,grant number NA 36RG-0070, under provisions of the NationalSea Grant College and Programs Act of 1966. This information is published by the Sea Grant Extension Program which functionsas a coinponentof the Florida Cooperative Extension Service, John T. Woeste, Dean, in conducting Cooperative Extensionwork in Agriculture, Home Economics, and Marine Sciences,State of Florida, U.S. Departmentof Agriculture, U.S. Departmentof Commerce, and Boards of County Commissioners, cooperating.Printed and distributed in furtherance af the Actsof Congressof May 8 andJune 14, 1914.The Florida Sea Grant Collegeis an Equal Opportunity-AffirmativeAction employer authorizedto provide research, educational information and other servicesonly to individuals and institutions that function without regardto race,color, sex, age,handicap or nationalorigin. Coverphoto: Hank Brandli & Rob Downey LOANCOPY ONLY Florida Hurricanes and Tropical Storms 1871-1995: An Historical survey Fred Doehring, Iver W. Duedall, and John M. Williams Division of Marine and Environmental Systems, Florida Institute of Technology Melbourne, FL 32901 Technical Paper - 71 June 1994 $5.00 Copies may be obtained from: Florida Sea Grant College Program University of Florida Building 803 P.O. Box 110409 Gainesville, FL 32611-0409 904-392-2801 II Our friend andcolleague, Fred Doehringpictured below, died on January 5, 1993, before this manuscript was completed. Until his death, Fred had spent the last 18 months painstakingly researchingdata for this book. -
P1.14 the Spatial Patterns of Rainfall Produced by Hurricane Irene (2011) and Other Tropical Cyclones with Similar Tracks
P1.14 THE SPATIAL PATTERNS OF RAINFALL PRODUCED BY HURRICANE IRENE (2011) AND OTHER TROPICAL CYCLONES WITH SIMILAR TRACKS Corene J. Matyas * University of Florida, Gainesville, Florida 1. INTRODUCTION However, isentropic uplift of the moist tropical air mass ahead of the storm center enhances Hurricane Irene was one of the most precipitation (Atallah et al. 2007; Jones et al. damaging tropical cyclones of the 2011 Atlantic 2003; Sinclair 2004). Interaction with topography Basin tropical cyclone season. Although some such as that which occurs near the Appalachian damage did occur from high winds and storm Mountains can also enhance TC precipitation surge, Irene produced record-breaking rainfall (Haggard et al. 1973; Sturdevant-Rees et al. across several locations in the mid-Atlantic and 2001). In less than 24 hours, 200-300 mm of northeastern U.S. The National Hurricane rain can fall from these transitioning systems Center (NHC) tropical cyclone report (Avila and (Jones et al. 2003), which can lead to flooding Cangialosi 2011) lists 399.8 mm (15.74 in) in and associated damage to property and life. Bayboro, North Carolina as the U.S. location This study utilizes a Geographic Information receiving the highest rainfall. The System (GIS) to characterize the spatial patterns Hydrometeorological Prediction Center (HPC) of rainfall produced by Irene and to identify other (http://www.hpc.ncep.noaa.gov/tropical/tropical_ TCs taking similar tracks over the U.S. The advisories.php?storm=IRENE&adnum=37&dt=2 amounts and locations of the top 10% of rainfall 011082915&status=remnants) shows that totals are examined in relation to the storm track locations in eight states received more than 254 as well as latitude and longitude through the mm (10 in) of rainfall. -
Hurricane Florence
Hurricane Florence: Building resilience for the new normal April 2019 Contents Foreword 2 An improved and consistent approach is needed to address large concentrations of Executive summary 4 harmful waste located in high hazard areas 23 Section I: The Physical Context 6 Floods contribute to marginalizing vulnerable communities in multiple ways 23 Previous events: Flooding timeline in North Carolina 8 Climate has visibly changed, sea levels have visibly risen, and these Hurricane threat – Can a Category 1 storm trends are likely to continue 23 be more dangerous than a Category 4? 9 Economic motivators can be used as Section II: Socio-Economic levers for both action and inaction 23 Disaster Landscape 10 The Saffir-Simpson Scale is not sufficient Physical Landscape 11 to charaterize potential hurricane impacts 25 Understanding the Risk Landscape 13 Even the best data has limitations and can’t substitute for caution and common sense 25 Socio-Economic Landscape 13 Recovery after Recovery 13 Section V: Recommendations 26 Environmental Risk 14 Now is the time to act – failure to do so will be far more expensive in the long run 27 Coastal Development 15 We need to critically assess where we are Section III: What Happened? 16 building and how we are incentivizing risk 27 Response 17 Shifting from siloed interventions to a holistic approach is key 27 Recovery 17 Change how we communicate risk 27 Section IV: Key Insights 20 Insurance is vital, but it needs to be the Lived experience, even repeat experience, right type of insurance and it should be doesn’t make people take action 21 a last resort 28 As a Nation, we continue to Imagine how bad it could be and plan support high-risk investments and for worse 28 unsustainable development 21 Section VI: Ways Forward 30 Hurricane Florence: Building resilience for the new normal 1 Foreword 2 Hurricane Florence: Building resilience for the new normal When people live through a catastrophic event their experience becomes a milestone moment that colors everything moving forward. -
About Hurricanes
ABOUT HURRICANES Hurricanes are severe tropical storms, massive storm systems, that form over the open water. Threats from hurricanes include high winds, heavy rainfall, storm surge, coastal and inland flooding, rip currents and tornadoes. A hurricane’s high winds may spawn tornadoes. Torrential rains cause further damage by causing floods and landslides, which not only threaten coastal communities but may impact communities many miles inland. The Atlantic hurricane season runs from June 1 to November 30, with the peak occurring between mid-August and late October. SAFFIR-SIMPSON HURRICANE SCALE Category Wind Speed Damage 1 74-95 MPH Some 2 96-110 MPH Extensive 3 111-129 MPH Devastating 4 130-156 MPH Catastrophic 5 157+ MPH Catastrophic Virginia Department of Emergency Management www.vaemergency.gov VAemergency @VDEM ABOUT HURRICANES STORM SURGE RAINFALL AND INLAND FLOODING Storm surge is an abnormal and dangerous rise of water pushed Intense rainfall is not directly related to the wind speed of a onto the shore by strong winds from a hurricane or tropical storm. hurricane. Some of the greatest rainfall amounts occur from A storm surge can increase the normal high tide by 15 feet or weaker storms that drift slowly or stall over an area. Inland flooding more and is the main reason why evacuations are ordered. can be a major threat to communities hundreds of miles from the coast as intense rain falls from these huge tropical air masses. RIP CURRENTS, DANGEROUS SURF Inland flooding is responsible for more than half of the deaths Rip currents are powerful, narrow channels of fast-moving water associated with hurricanes. -
Climate Disasters in North Carolina Tl/Dr: Here's
CLIMATE DISASTERS IN NORTH CAROLINA With Trump gutting FEMA and fighting with state governments, what is in store for the rest of 2020 for North Carolina? TL/DR: Trump has failed to prepare us for disasters caused by climate change. What does this mean for North Carolina? • Research shows climate change is making hurricanes stronger and in North Carolina, this extreme weather is fatal and costing the state billions of dollars: o An “above-normal” Atlantic hurricane season is expected in 2020. o In 2019, FEMA obligated $30,680,261 to North Carolina following Hurricane Dorian, which caused record flooding on the state’s Outer Banks. North Carolina has seen eight hurricanes in the past decade that caused a total of $336.2 billion in damages and 551 deaths. • In addition to hurricanes, North Carolinians also face other severe storms and flooding due to climate change: o Severe storms have been linked to climate change, as hotter air carries more moisture, leading to more frequent and more intense storms. o Studies show one-third of the lower 48 states face flooding risks due to severe storms. AccuWeather also forecasts an above average number of tornadoes in 2020. o In the last decade, North Carolina has seen 19 severe storms that caused a total of $35.6 billion in damages and 182 deaths. o Scientists have linked increases in heavy snowfall events to climate change. In the past decade, North Carolina experienced four winter storms that caused $9.1 billion in damages and 77 deaths. • In North Carolina, climate change is also spurring an increase in drought conditions: o In the last decade, North Carolina has seen three droughts that caused a total of $22.1 billion in damages and 95 deaths. -
Historical Perspective
kZ _!% L , Ti Historical Perspective 2.1 Introduction CROSS REFERENCE Through the years, FEMA, other Federal agencies, State and For resources that augment local agencies, and other private groups have documented and the guidance and other evaluated the effects of coastal flood and wind events and the information in this Manual, performance of buildings located in coastal areas during those see the Residential Coastal Construction Web site events. These evaluations provide a historical perspective on the siting, design, and construction of buildings along the Atlantic, Pacific, Gulf of Mexico, and Great Lakes coasts. These studies provide a baseline against which the effects of later coastal flood events can be measured. Within this context, certain hurricanes, coastal storms, and other coastal flood events stand out as being especially important, either Hurricane categories reported because of the nature and extent of the damage they caused or in this Manual should be because of particular flaws they exposed in hazard identification, interpreted cautiously. Storm siting, design, construction, or maintenance practices. Many of categorization based on wind speed may differ from that these events—particularly those occurring since 1979—have been based on barometric pressure documented by FEMA in Flood Damage Assessment Reports, or storm surge. Also, storm Building Performance Assessment Team (BPAT) reports, and effects vary geographically— Mitigation Assessment Team (MAT) reports. These reports only the area near the point of summarize investigations that FEMA conducts shortly after landfall will experience effects associated with the reported major disasters. Drawing on the combined resources of a Federal, storm category. State, local, and private sector partnership, a team of investigators COASTAL CONSTRUCTION MANUAL 2-1 2 HISTORICAL PERSPECTIVE is tasked with evaluating the performance of buildings and related infrastructure in response to the effects of natural and man-made hazards. -
Gov. Pat Mccrory's Letter to the North Carolina Congressional Delegation
Governor McCrory’s Request for Federal Assistance for North Carolina’s Hurricane Matthew Recovery On behalf of the state of North Carolina, Governor Pat McCrory requests 1,028,32,144 to meet priority unmet needs to ensure North Carolina fully recovers and rebuilds from the devastation of Hurricane Matthew. O Hurricane Matthew was an extraordinarily severe and prolonged event that brought record-level flooding to many areas in eastern North Carolina’s coastal plain, sound and coastal communities. Hurricane Matthew hit North Carolina on October 8, 2016, as a Category 1 storm. The devastation of the storm was primarily caused by extensive rainfall as the slowly moving storm passed over the state. During a 36-hour period, impacted areas in central and eastern North Carolina experienced heavy rainfall ranging from four to 18 inches. The precipitation set new records for rainfall in a single day in 17 counties. Many counties that received a significant amount of rainfall from Hurricane Matthew were still recovering from devastating flooding caused by precipitation when the remnants of Tropical Storm Julia crossed eastern North Carolina just two weeks earlier. Riverine flooding began several days after Hurricane Matthew passed and lasted more than two weeks. Several larger rivers reached well above major flood levels, including the Tar, Cape Fear, Cashie, Lumber and Neuse. On October 24, 2016, the last river that had reached flood stages finally returned to normal levels. Although severe impacts were sustained throughout central and eastern North Carolina, the following areas sustained particularly catastrophic damages: v Edgecombe County (including the Town of Princeville) v Robeson County (including the City of Lumberton) v Columbus County (including the Town of Fair Bluff) v Wayne County (including the City of Goldsboro) v Lenoir County (including the City of inston) v Cumberland County (including portions of the City of Fayetteville) At the storm’s peak, 3,744 individuals were moved to 10 shelters across the region. -
Hurricane Season04.Pub
Carolina Sky Watcher NOAA has been issuing hurricane seasonal for the last six years and they have been very accurate. They are based on NOAA's Accumulated Cyclone Energy – or ACE –Index. The ACE index measures the collective strength and duration of tropical storms and hurricanes in a given region. It has proven to be highly predict- able and is a key forecast parameter for NOAA hurricane outlooks. National Weather Service, Newport, NC Vol. 11, Number 2 (#39) Jun 1, 2004 - Nov 30, 2004 For 2004, NOAA predicts an above normal hurricane season. The outlook calls for * 12-15 tropical storms * 6-8 becoming hurricanes – 2004 at least 74 mph winds * 2-4 becoming major Hurricane hurricanes (Categories 3- 5) – at least 115 mph winds. Season Based on historical data, similar seasons have averaged two to three land-falling hurricanes in the continental During the prior, relatively in- United States, and 1-2 hurricanes in the region around the Caribbean Sea. active, 1970-1994 period, hurri- cane seasons averaged only 9 This above normal forecast is continuing the trend of above normal activity since 1995. Between 1995-2003, tropical storms, 5 hurricanes, Atlantic hurricane seasons have averaged 13 tropical storms, 8 hurricanes, and 4 major hurricanes. An and 2 major hurricanes. Only above-normal season features a lot of activity in the deep tropics of the Atlantic.. These become hurricanes three seasons during this entire and major hurricanes, and have general westward tracks toward the United States. This is why we have so period were classified as above many more hurricane landfalls in the U.S. -
1.1 the Climatology of Inland Winds from Tropical Cyclones in the Eastern United States
1.1 THE CLIMATOLOGY OF INLAND WINDS FROM TROPICAL CYCLONES IN THE EASTERN UNITED STATES Michael C. Kruk* STG Inc., Asheville, North Carolina Ethan J. Gibney IMSG Inc., Asheville, North Carolina David H. Levinson and Michael Squires NOAA National Climatic Data Center, Asheville, NC landfall than do weaker storms. For these reasons, the 1. Introduction primary impact areas of tropical cyclones are generally found along coastal (or near coastal) regions. Most In the United States, the impacts from tropical previous studies involving the inland-extent of tropical cyclones often extend well-inland after these storms cyclones have generally focused on their expected or make landfall along the coast. For example, after the modeled rate of decay post landfall (e.g., Tuleya et al. passage of Hurricane Camille (1969), more than 150 1984, Kaplan and DeMaria 1995; Kaplan and DeMaria casualties occurred in the state of Virginia, some 1300 2001), while others have focused on recurrence km inland from where the storm originally made landfall thresholds or probabilities of landfalls along a given along the Louisiana coast (Emanuel 2005). According to portion of the United States coastline (e.g., Bove et al. Rappaport (2000), a large portion of fatalities often occur 1998; Elsner and Bossak 2001; Gray and Klotzbach inland associated with a decaying tropical cyclone’s 2005; Saunders and Lea 2005). Results from Kaplan winds (falling trees, collapsed roofs, etc.) and heavy and DeMaria (1995) showed an idealized scenario for flooding rains. In the 1970s, ‘80s, and ‘90s, freshwater the maximum possible inland wind speed of a decaying floods accounted for 59 percent of the recorded deaths tropical cyclone based on both intensity at landfall and from tropical cyclones (Rappaport 2000), and such forward motion for the Gulf Coast and southeastern floods are often a combination of meteorological and United States, and for the New England area (Kaplan hydrological factors. -
The Development of a Hydrodynamics-Based Storm Severity Index
UNF Digital Commons UNF Graduate Theses and Dissertations Student Scholarship 2015 The evelopmeD nt of a Hydrodynamics-Based Storm Severity Index Gabriel Francis Todaro University of North Florida Suggested Citation Todaro, Gabriel Francis, "The eD velopment of a Hydrodynamics-Based Storm Severity Index" (2015). UNF Graduate Theses and Dissertations. 601. https://digitalcommons.unf.edu/etd/601 This Master's Thesis is brought to you for free and open access by the Student Scholarship at UNF Digital Commons. It has been accepted for inclusion in UNF Graduate Theses and Dissertations by an authorized administrator of UNF Digital Commons. For more information, please contact Digital Projects. © 2015 All Rights Reserved THE DEVELOPMENT OF A HYDRODYNAMICS-BASED STORM SEVERITY INDEX by Gabriel Todaro A thesis submitted to the School of Engineering in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering UNIVERSITY OF NORTH FLORIDA SCHOOL OF ENGINEERING November, 2015 Unpublished work © Gabriel Todaro The thesis "Development of a Hydrodynamics-Based Storm Severity Index" submitted by Gabriel Todaro in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering has been Approved by the thesis committee: Date: ___________________________ _______________________ Dr. William R. Dally, Ph.D., P.E. ______________________________ _______________________ Dr. Don T. Resio, Ph.D. __________________________ _______________________ Dr. Christopher J. Brown, Ph.D., P.E. Accepted for the School of Engineering: Dr. Murat Tiryakioglu, Ph.D., C.Q.E. Director of the School of Engineering Accepted for the College of Computing, Engineering, and Construction: Dr. Mark Tumeo, Ph.D., P.E. Dean of the College of Computing, Engineering, and Construction Accepted for the University: Dr.