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Atlantic Hurricane Season Outlook for June 2020
Atlantic Hurricane Season Outlook for June 2020 ELEVATED U.S. RISKS FROM HURRICANE SEASON 2020 AS VERY BUSY YEAR BEGINS… Outlook Overview ➢ WeatherTiger’s WeatherTiger's June outlook for the 2020 hurricane season is for a 75-80% chance of an above average year, with a 15-20% chance of near-normal and just a 5% chance of below-normal cumulative activity. The median of our forecast is about 180% of average hurricane season activity, or around 19 named storms, nine hurricanes and five major hurricanes. ➢ This is slightly above the consensus of some other recently issued forecasts, likely due to our model's bullishness towards a La Niña developing by late summer or early fall. However, almost all forecast groups project above normal activity. ➢ Overall, while model skill remains limited at this range, convergent lines of evidence from our objective modeling and seasonal analogs support an active season, with the potential for a risky steering current regime in the peak months. Updated Seasonal Outlook for Tropical Cyclone Activity On a lighter note: hurricane season. The devil you know is back. Unlike a pandemic, at least taking down the shutters after a storm won’t make it return. This doesn’t imply that hurricane season 2020 will be reasonable. WeatherTiger’s updated seasonal forecast and a consensus of other guidance favors an abnormally active year. We expect net activity of about three-quarters more than the average season, with 95% odds of more storms than Dr. Birx has scarves. I’ll get into the forecast rationale and what it may mean for Florida, but first, a quick orientation for new readers: I’m Dr. -
Tropical Cyclone Report for Hurricane Ivan
Tropical Cyclone Report Hurricane Ivan 2-24 September 2004 Stacy R. Stewart National Hurricane Center 16 December 2004 Updated 27 May 2005 to revise damage estimate Updated 11 August 2011 to revise damage estimate Ivan was a classical, long-lived Cape Verde hurricane that reached Category 5 strength three times on the Saffir-Simpson Hurricane Scale (SSHS). It was also the strongest hurricane on record that far south east of the Lesser Antilles. Ivan caused considerable damage and loss of life as it passed through the Caribbean Sea. a. Synoptic History Ivan developed from a large tropical wave that moved off the west coast of Africa on 31 August. Although the wave was accompanied by a surface pressure system and an impressive upper-level outflow pattern, associated convection was limited and not well organized. However, by early on 1 September, convective banding began to develop around the low-level center and Dvorak satellite classifications were initiated later that day. Favorable upper-level outflow and low shear environment was conducive for the formation of vigorous deep convection to develop and persist near the center, and it is estimated that a tropical depression formed around 1800 UTC 2 September. Figure 1 depicts the “best track” of the tropical cyclone’s path. The wind and pressure histories are shown in Figs. 2a and 3a, respectively. Table 1 is a listing of the best track positions and intensities. Despite a relatively low latitude (9.7o N), development continued and it is estimated that the cyclone became Tropical Storm Ivan just 12 h later at 0600 UTC 3 September. -
The Critical Role of Cloud–Infrared Radiation Feedback in Tropical Cyclone Development
The critical role of cloud–infrared radiation feedback in tropical cyclone development James H. Ruppert Jra,b,1, Allison A. Wingc, Xiaodong Tangd, and Erika L. Durane aDepartment of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA 16802; bCenter for Advanced Data Assimilation and Predictability Techniques, The Pennsylvania State University, University Park, PA 16802; cDepartment of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL 32306; dKey Laboratory of Mesoscale Severe Weather, Ministry of Education, and School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China; and eEarth System Science Center, University of Alabama in Huntsville/NASA Short-term Prediction Research and Transition (SPoRT) Center, Huntsville, AL 35805 Edited by Kerry A. Emanuel, Massachusetts Institute of Technology, Cambridge, MA, and approved September 21, 2020 (received for review June 29, 2020) The tall clouds that comprise tropical storms, hurricanes, and within an incipient storm locally increase the atmospheric trapping typhoons—or more generally, tropical cyclones (TCs)—are highly of infrared radiation, in turn locally warming the lower–middle effective at trapping the infrared radiation welling up from the sur- troposphere relative to the storm’s surroundings (35–39). This face. This cloud–infrared radiation feedback, referred to as the mechanism is a positive feedback to the incipient storm, as it “cloud greenhouse effect,” locally warms the lower–middle tropo- promotes its thermally direct transverse circulation (38, 39) sphere relative to a TC’s surroundings through all stages of its life (Fig. 1A). Herein, we examine the role of this feedback in the cycle. Here, we show that this effect is essential to promoting and context of TC development in nature. -
Fishing Pier Design Guidance Part 1
Fishing Pier Design Guidance Part 1: Historical Pier Damage in Florida Ralph R. Clark Florida Department of Environmental Protection Bureau of Beaches and Coastal Systems May 2010 Table of Contents Foreword............................................................................................................................. i Table of Contents ............................................................................................................... ii Chapter 1 – Introduction................................................................................................... 1 Chapter 2 – Ocean and Gulf Pier Damages in Florida................................................... 4 Chapter 3 – Three Major Hurricanes of the Late 1970’s............................................... 6 September 23, 1975 – Hurricane Eloise ...................................................................... 6 September 3, 1979 – Hurricane David ........................................................................ 6 September 13, 1979 – Hurricane Frederic.................................................................. 7 Chapter 4 – Two Hurricanes and Four Storms of the 1980’s........................................ 8 June 18, 1982 – No Name Storm.................................................................................. 8 November 21-24, 1984 – Thanksgiving Storm............................................................ 8 August 30-September 1, 1985 – Hurricane Elena ...................................................... 9 October 31, -
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. -
Hurricane Eyewall Slope As Determined from Airborne Radar Reflectivity Data: Composites and Case Studies
368 WEATHER AND FORECASTING VOLUME 28 Hurricane Eyewall Slope as Determined from Airborne Radar Reflectivity Data: Composites and Case Studies ANDREW T. HAZELTON AND ROBERT E. HART Department of Earth, Ocean, and Atmospheric Science, The Florida State University, Tallahassee, Florida (Manuscript received 19 April 2012, in final form 6 December 2012) ABSTRACT Understanding and predicting the evolution of the tropical cyclone (TC) inner core continues to be a major research focus in tropical meteorology. Eyewall slope and its relationship to intensity and intensity change is one example that has been insufficiently studied. Accordingly, in this study, radar reflectivity data are used to quantify and analyze the azimuthal average and variance of eyewall slopes from 124 flight legs among 15 Atlantic TCs from 2004 to 2011. The slopes from each flight leg are averaged into 6-h increments around the best-track times to allow for a comparison of slope and best-track intensity. A statistically significant re- lationship is found between both the azimuthal mean slope and pressure and between slope and wind. In addition, several individual TCs show higher correlation between slope and intensity, and TCs with both relatively high and low correlations are examined in case studies. In addition, a correlation is found between slope and radar-based eye size at 2 km, but size shows little correlation with intensity. There is also a tendency for the eyewall to tilt downshear by an average of approximately 108. In addition, the upper eyewall slopes more sharply than the lower eyewall in about three-quarters of the cases. Analysis of case studies discusses the potential effects on eyewall slope of both inner-core and environmental processes, such as vertical shear, ocean heat content, and eyewall replacement cycles. -
Eta Y Iota En Guatemala
Evaluación de los efectos e impactos de las depresiones tropicales Eta y Iota en Guatemala México Belice Petén Huehuetenango Guatemala Quiché Alta Verapaz Izabal Baja Verapaz San Marcos Zacapa Quetzaltenango Chiquimula Honduras Guatemala Sololá Suchitepéquez Jutiapa Escuintla El Salvador Nicaragua Gracias por su interés en esta publicación de la CEPAL Publicaciones de la CEPAL Si desea recibir información oportuna sobre nuestros productos editoriales y actividades, le invitamos a registrarse. Podrá definir sus áreas de interés y acceder a nuestros productos en otros formatos. www.cepal.org/es/publications Publicaciones www.cepal.org/apps Evaluación de los efectos e impactos de las depresiones tropicales Eta y Iota en Guatemala Este documento fue coordinado por Omar D. Bello, Oficial de Asuntos Económicos de la Oficina de la Secretaría de la Comisión Económica para América Latina y el Caribe (CEPAL), y Leda Peralta, Oficial de Asuntos Económicos de la Unidad de Comercio Internacional e Industria de la sede subregional de la CEPAL en México, en el marco de las actividades del Programa Ordinario de Cooperación Técnica implementado por la CEPAL. Fue preparado por Álvaro Monett, Asesor Regional en Gestión de Información Geoespacial de la División de Estadísticas de la CEPAL, y Juan Carlos Rivas y Jesús López, Oficiales de Asuntos Económicos de la Unidad de Desarrollo Económico de la sede subregional de la CEPAL en México. Participaron en su elaboración los siguientes consultores de la CEPAL: Raffaella Anilio, Horacio Castellaro, Carlos Espiga, Adrián Flores, Hugo Hernández, Francisco Ibarra, Sebastián Moya, María Eugenia Rodríguez y Santiago Salvador, así como los siguientes funcionarios del Banco Interamericano de Desarrollo (BID): Ginés Suárez, Omar Samayoa y Renato Vargas, y los siguientes funcionarios del Banco Mundial: Osmar Velasco, Ivonne Jaimes, Doris Souza, Juan Carlos Cárdenas y Mariano González. -
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. -
1 a Hyperactive End to the Atlantic Hurricane Season: October–November 2020
1 A Hyperactive End to the Atlantic Hurricane Season: October–November 2020 2 3 Philip J. Klotzbach* 4 Department of Atmospheric Science 5 Colorado State University 6 Fort Collins CO 80523 7 8 Kimberly M. Wood# 9 Department of Geosciences 10 Mississippi State University 11 Mississippi State MS 39762 12 13 Michael M. Bell 14 Department of Atmospheric Science 15 Colorado State University 16 Fort Collins CO 80523 17 1 18 Eric S. Blake 19 National Hurricane Center 1 Early Online Release: This preliminary version has been accepted for publication in Bulletin of the American Meteorological Society, may be fully cited, and has been assigned DOI 10.1175/BAMS-D-20-0312.1. The final typeset copyedited article will replace the EOR at the above DOI when it is published. © 2021 American Meteorological Society Unauthenticated | Downloaded 09/26/21 05:03 AM UTC 20 National Oceanic and Atmospheric Administration 21 Miami FL 33165 22 23 Steven G. Bowen 24 Aon 25 Chicago IL 60601 26 27 Louis-Philippe Caron 28 Ouranos 29 Montreal Canada H3A 1B9 30 31 Barcelona Supercomputing Center 32 Barcelona Spain 08034 33 34 Jennifer M. Collins 35 School of Geosciences 36 University of South Florida 37 Tampa FL 33620 38 2 Unauthenticated | Downloaded 09/26/21 05:03 AM UTC Accepted for publication in Bulletin of the American Meteorological Society. DOI 10.1175/BAMS-D-20-0312.1. 39 Ethan J. Gibney 40 UCAR/Cooperative Programs for the Advancement of Earth System Science 41 San Diego, CA 92127 42 43 Carl J. Schreck III 44 North Carolina Institute for Climate Studies, Cooperative Institute for Satellite Earth System 45 Studies (CISESS) 46 North Carolina State University 47 Asheville NC 28801 48 49 Ryan E. -
Preparing Boats, Marinas for Hurricanes
THE BOATER'S GUIDE TO PREPARING BOATS & MARINAS FOR HURRICANES Boat owners from Maine to Texas have number of storm-free years, people in the marina when a hurricane threatens. reason to become edgy in the late summer some of the vulnerable areas will be less Ask the marina manager what hurricane and fall: Each year, on average, two hurri- wary of a storm’s potential fury. But to plan the marina has in place. canes will come ashore somewhere along residents of North Carolina and Virginia, crippled by Isabel in 2003, and people in the Gulf or Atlantic coast, destroying Planning where your boat will best survive Florida, ravaged from four giant storms homes, sinking boats, and turning people’s a storm, and what protective steps you in 2004, the hurricane threat won’t soon lives topsy-turvy for weeks, or even need to take when a hurricane threatens, be forgotten. months. This year, who knows? Florida is should begin before hurricane season. The struck most often, but every coastal state BoatU.S. Marine Insurance claim files is a potential target. Developing a Plan have shown that the probability of damage can be reduced considerably by choosing Experts predict that in the next 20 years If you own a boat, the first step in devel- the most storm-worthy location possible there will be much more hurricane oping a preparation plan is to review and having your plan ready long before a activity than has been seen in the past your dock contract for language that may hurricane warning is posted. -
Nicaragua: Hurricanes Eta and Iota Nicaragua: Hurricanes Eta and Iota
Emergency Plan of Action (EPoA) Nicaragua: Hurricanes Eta and Iota Nicaragua: Hurricanes Eta and Iota Emergency Appeal N° MDR43007 Glide N°: TC-2020-000218-NIC Date of issue: 22 December 2020 Emergency Appeal launch: Expected timeframe: 18 months 8 November 2020 Expected end date: 31 May 2022 IFRC Category allocated to the of the disaster or crisis: Orange IFRC funding requirements: 5,013,270 Swiss francs (CHF) National Society Response Plan funding requirements: 14,000,000 American dollars (USD) DREF allocated: 440,000 CHF Number of exposed people: Over 3 million Number of people to be This EPoA: 42,500 people (8,500 people assisted families) Total NS response: 60,000 people (12,000 families) Municipalities affected: 56 Regions targeted: Municipalities of Puerto Cabezas, Waspam, and Prinzapolka in the North Atlantic Region, and Jinotega, Rivas, Bluefields and Managua regions. Host National Societies presence: The Nicaraguan Red Cross has 1500 volunteers activated for the NS response in the whole country in addition to 500 staff in 32 branches, active particularly in Puerto Cabezas and Bonanza, in the Caribe Norte region. Red Cross Red Crescent Movement partners actively involved in the operation: International Federation of the Red Cross (IFRC), International Committee of the Red Cross (ICRC), Spanish Red Cross (SRC) and Italian Red Cross (IRC) Other partner organizations actively involved in the operation: National System for the Prevention, Mitigation of, and Attention to Disasters (SINAPRED),Ministry of Health (MINSA), World Vision, Nestle, Walmart, Fideicomiso Juntos Vamos a Superarlo, American Nicaraguan Foundation (ANF), Walmart Foundation (Banco de Alimentos), World Food Program, Banpro, Aceitera de Nicaragua. -
P1.28 a Digital Archive of Significant Florida Weather Events to Improve the Public’S Response to Future Warnings
P1.28 A Digital Archive of Significant Florida Weather Events to Improve the Public’s Response to Future Warnings Charles H. Paxton1,2, Jennifer M. Collins2, Kortnie J. Pugh1,2,3, and Jennifer L. Colson1 1. National Weather Service, Tampa Bay Florida 2. University of South Florida, Tampa, FL 3. National Marine Fisheries Service, St. Petersburg, FL I. Introduction other artifacts. These resources are of immense The past is our guide, our manual, it helps value not only to NOAA but also the American illuminate actions for the future. Through a NOAA people their true owners. Two frail leather-bound Preserve America Initiative grant obtained in U.S. Weather Bureau means books dating back to collaboration between the NWS (Tampa Bay 1890 needed rebinding. The office also has a region) and the University of South Florida (USF) wealth of other record books, older original two students were hired by NMFS Regional office weather maps depicting major events, news to work at the Tampa Bay Area NWS to document articles, and photos of major past events. historic weather events (Fig 1) and preserve weather relics. In an effort to save items of historical content, President Bush through his Preserve America executive order (E.O. 13287) called on NOAA and other federal agencies to inventory, preserve, and showcase federally- managed historic, cultural, or "heritage" resources and foster tourism in partnership with local communities. Fig. 2. Scanned weather photos. Many old weather artifacts from the past have been photographed and existing photographs of past weather events were scanned too (Fig. 2). When in electronic form, the pages of the books make accessible viewing on the Internet.