DOCSLIB.ORG

Cyclone Season 2009-2010

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cyclone Season 2009-2010 + 12 10 + 1 0 + 10 2 + 12 0 0 + 100 02 1 1 8 1 0 0 + A 2 0 4 4 + 1 + 02 Centre des 1023 1 1 + 0 00 0 16 0 0 10 + 8 1 + 0 1 1 01 6 8 6 2 2 + 101 Cyclones Tropicaux 0 100 + 1 D 1 + 8 0 0 9924 1 + SAISONA 1 0 993 02 de La Réunion 4 1 + 2 2 0 0 1033 1 8 1 0 100 D 1 + 8 6 D A 8 1024 1 + 100 2 0 1096 d 0 0 1 24 4 10 1012 + + + + + + + 1 1 0 0 1 1 La Reunion 0 1 A 0 6 0 2 0 016 + 102 1 8 1015 988 00 100 1012 1 8 2 04 1 10 99 1 10 0 0 Tropical Cyclone 10 00 4 99 0 97 CYCLONIQUE6 00 6 1 6 99 99 2 99 2 6 97 98 Centre 6 1008 8 Sud-Ouest de l'océan Indien TRMM 15 dBZ Météo-France Météo-France Copyright Météo-France 1 D 0 A 1 + + 6 1017 1016 + A + 10 + 4 20 1024 2 0 + 1 012 1 + 1 0 + 10 2 + 12 0 Copyright+ 10 0 0 102 1 1 8 0 00 + A 2 4 4 + 1 + 2009 1023 02 1 1 + 0 00 0 16 0 0 10 + + 8 1 CYCLONE SEASON 0 1 1 012 6 8 6 + 101 2 0 D 100 + 1 1 + 8 0 0 9924 1 + A 1 0 993 4 02 1 + 2 South-West2 Indian Ocean 0 0 1033 1 8 1 0 100 D 1 6 2010 + D 8 1024 + 00 A 8 1 1d 2 0 1096 0 0 1 24 4 10 1012 + + + + + + + 1 1 0 0 1 1 0 1 A 0 6 0 2 016 + 1020 1 1015 988 008 100 1012 1 8 2 04 1 10 99 1 10 0 0 10 00 4 99 0 976 6 100 6 99 99 2 99 2 6 97 98 6 1Copyright008 8 D Saison cyclonique 2009-2010 Sud-Ouest de l'océan Indien Cyclone season South-West Indian Ocean Sommaire Contents Introduction .............................................................................................. Page 2 Météo-FranceIntroduction Liste et intensité maximale des perturbations Page 6 List of tropical disturbances with their maximum intensities Cartographie des trajectoires .................................................................... Page 7 Map of trajectories Caractéristiques de la saison cyclonique et données statistiques .............. Page 8 Main featuresMétéo-France of the cyclone season and statistical data Note explicative sur l'analyse individuelle des perturbations ..................... Page 11 Explanatory note on the individual analysis of disturbances Analyse chronologique des perturbations de la saison ............................... Page 12 Copyright Analysis of the disturbances of the season in chronological order Terminologie .............................................................................................Météo-FrancePage 78 Terminology Directeur de la publication : Yves GREGORIS Classification des systèmes dépressionnaires Rédaction et réalisation : dans le Sud-Ouest de l'océan Indien .......................................................... Page 79 Philippe CAROFF Classification of tropical disturbances used in the South-West Indian Ocean PAO : Jean-François BOYER CopyrightAvec la contribution des prévisionnistes cyclone du CMRS de La Réunion : Catherine BIENTZ Thierry DUPONT Sébastien LANGLADE Hubert QUETELARD © METEO FRANCE - DIRECTION INTERREGIONALE DE LA REUNION BP 4 - 97491 SAINTE-CLOTILDE Cedex - FRANCE Géraldine RAYOT CopyrightReproduction interdite - Loi n° 92-597 du 1er juillet 1992 relative au code de la propriété intellectuelle. Météo-France Météo-France Copyright Météo-FranceSud-OuestCYCLONIQUE de l'océanSAISON Indien CYCLONE SEASON Copyright South-West Indian Ocean Copyright 2009 -2010 12 10 + 1 0 + 10 2 A + 12 0 + + 100 1023 1 1 8 0 0 + 2 04 4 1 + 02 1 1 + 0 00 0 0 0 + 8 1 + D 0 1 1 01 6 8 6 2 2 + 101 992 0 100 + 1 + A 1 993 + 8 0 + 0 1033 4 1 1 D 02 0 4 1 + D 2 1024 + 2 A 0 0 1 8 d 1 1096 0 100 1 8 6 1 100 8 1012 0 2 0 0 4 4 1 02 + + + 1 + + + A + + 1 1015 1 0 0 1 1 0 1 0 6 0 2 0 016 102 1 8 00 100 1012 1 8 2 04 1 10 99 1 10 0 0 10 00 4 99 0 6 100 6 99 99 2 99 Introduction2 6 La saison cyclonique 2009-2010 dans le Sud-Ouest de l’océan Indien The 2009/2010 Cyclone season In the South-West Indian Ocean a saison cyclonique 2009-2010 a de tropicales s’étant transformées en un indice ENSO nettement positif). Ce nouveau été marquée par une activité cyclones tropicaux matures (5 cyclones, basculement vers une phase chaude El nettement inférieure à la normale, dont trois intenses et un autre classé très Niño, n’a donc en rien modifié la donne L malgré un nombre de phénomènes intense), on a, en effet, retrouvé un ratio pour ce qui est de l’activité cyclonique, qui s’est maintenu à un niveau légèrement normal de développement et, plus géné- qui est restée atone, tant à l’échelle supérieur à la moyenne climatologique. ralement, une répartition plus équilibrée planétaire, qu’au niveau du bassin du On peut d’ailleurs légitimement considérer des phénomènes entre les différentes Sud-Ouest de l’océan Indien. Et le que cette saison cyclonique 2009-2010 catégories d’intensité. Mais hormis ce nouveau revirement intervenu à la fin est restée dans la continuité de l’exercice distinguo d’avoir vu se développer de l’été austral 2009-2010, avec dévelop- précédent, nombre de caractéristiques davantage de systèmes matures, cette pement rapide d’une phase La Niña, n’a de la saison 2008-2009 s’étant rééditées saison 2009-2010 a présenté un compor- pas eu davantage d’effet, si ce n’est que (ou perpétuées, comme l’on voudra). Outre tement malgré tout très similaire à celui d’amplifier encore la chute de l’activité le nombre équivalentMétéo-France de dix systèmes de sa devancière, le fait marquant étant cyclonique du bassin normalement le baptisés, le nombre de jours d’activité donc la persistance de la faible activité plus productif au monde et le plus tou- perturbée (nombre de jours cumulés perturbée sur le bassin. ché par la léthargie actuelle, à savoir le avec présence, sur le Sud-Ouest de Pacifique Nord-Ouest, qui a ainsi battu l’océan Indien, d’un système dépres- Celle-ci est à replacer dans un contexte un record d’inactivité sur les 50 dernières sionnaire d’intensité au moins égale à plus général : c’est toute l’activité années (les données fiables sur ce bassin la tempête tropicale modérée), est resté cyclonique à l’échelle du globe qui datant de 1960). identique, soit 36 jours (à comparer avec est entrée dans une phase d’apathie une moyenne climatologique de 51 jours étonnante depuis deux ans. Totalement Cette saison 2009-2010 du Sud-Ouest et une médiane fixée à 48 jours). à contre-courant du message que conti- de l’océan Indien a donc vu cinq cyclo- Cette stabilité, que l’on peut en l’occur- nuent, imperturbablement, de véhiculer nes tropicaux se développer, dont rence qualifier de stagnation, de l’activité les médias depuis l’ouragan Katrina de trois cyclones tropicaux intenses et perturbée à un niveau réellement faible, 2005 etMétéo-France des contre-vérités régulièrement un cyclone tropical très intense. Ceci n’a donc pas eu pour origine un déficit assénées –sans aucune vérification– est particulièrement méritoire et remar- de cyclogénèses, mais s’explique, comme quant à un pseudo "accroissement" du nom- quable, si l’on considère la durée de vie lors de la saison précédente, par la durée bre de cyclones, c’est, bien au contraire, à moyenne très réduite de l’ensemble des de vie réduite que les phénomènes un effondrement de l’activité perturbée perturbations de la saison. Pour pouvoir ont, en moyenne, passée à une intensité auquel on a littéralement assisté depuis atteindre de telles intensités dans un significative. Inchangée par rapport à 4 ans, chute ramenant l’activité cyclonique laps de temps aussi contraint et limité, 2008-2009, cette durée de vie moyenne mondiale à un niveau que l’on n’avait cela n’a pu être rendu possible que par (4,3 jours passés au stade de dépres- pas connu depuis une trentaine d’année l’occurrence de cycles de vie accélérés, sion tropicale ou plus – i.e. tempête et le creux majeur d’inactivité précédent i.e. associés à des taux d’intensification Copyrightou cyclone) est demeurée proche des de la fin des années 1970. (ou/et d’affaiblissement) très rapides. plus bas niveaux historiques, étant Simple cycle naturel ou signe d’unMétéo-France Et de fait, un des traits marquants de de nouveau tirée vers le bas par des changement plus profond et durable, cette saison aura été la récurrence du météores à l’existence rendue parti- les raisons de cette faiblesse actuelle développement explosif ou à des taux culièrement éphémère du fait d’un atter- de l’activité cyclonique mondiale font d’intensification anormalement rapides rissage prématuré sur Madagascar, alors présentement défaut. En tout cas, de plusieurs phénomènes : cela aura, en qu’ils venaient tout juste de commencer difficile a priori d’aller incriminer un des particulier, été le cas du cyclone CLEO, de s’intensifier (tempêtes tropicales FAMI facteurs potentiels de modulation du et à un degré légèrement moindre des et HUBERT). climat auxquels on pense habituellement cyclones EDZANI et ANJA. La seule différence notable par rapport en premier, à savoir l’oscillation australe. La saison aurait pu s’achever de manière à 2008-2009, est venue du nombre de L’été austral 2009-2010 a été placé sous extrêmement précoce, dès la fin mars, Copyrightjours cycloniques, qui a doublé par rap- le signe d’un épisode El Niño modéré sans l’occurrence d’un système port à la saison précédente, remontant dans le Pacifique Sud, alors que la saison extrêmement tardif, presque hors à 14 jours, ce qui reste malgré tout en chaude précédente avait été associée à saison, la dépression subtropicale deçà de la normale (qui est de 19 jours un pseudo-épisode La Niña ("pseudo", JOEL, développée sur le Sud du Canal avec présence d’un cyclone tropical sur car tous les critères d’un épisode La Niña de Mozambique, à proximité des côtes le bassin).
Load more

Recommended publications
  • Open Space Plan • Bradford County Subdivision and Land Development Ordinance
    Bradford County 2015 Hazard Mitigation Plan Certification of Annual Review Meetings DATE OF PUBLIC OUTREACH YEAR SIGNATURE MEETING ADDRESSED?* 2015 2016 2017 2018 2019 *Confirm yes here annually and describe on record of change page. Page | 1 Bradford County 2015 Hazard Mitigation Plan Record of Changes DESCRIPTION OF CHANGE MADE, CHANGE MADE BY CHANGE MADE BY DATE MITIGATION ACTION COMPLETED, OR (PRINT NAME) (SIGNATURE) PUBLIC OUTREACH PERFORMED Updated profiles for all hazards from the previous mitigation plan and added extreme temperatures, invasive species and radon 09/02/2014 Michael T. Rearick exposure. Updated the mitigation action plan and worked with the municipalities to develop new project opportunities. Completed additional revisions required by 12/17/2014 FEMA. Updated hazard profiles. Added the Michael T. Rearick Levee Failure profile. REMINDER: Please attach all associated meeting agendas, sign-in sheets, handouts, and minutes. Page | 2 Bradford County 2015 Hazard Mitigation Plan Table of Contents Certification of Annual Review Meetings .................................................................................... 1 Record of Changes .................................................................................................................... 2 1. Introduction ......................................................................................................................... 6 1.1 Background ........................................................................................................................................
    [Show full text]
  • Storm Naming: the First Season of Naming by the South-West Group: Spain-Portugal-France
    Storm naming: the First Season of Naming by the South-west Group: Spain-Portugal-France Paula Leitao (IPMA- Instituto Português do Mar e da Atmosfera), Bernard Roulet (Meteo France), Jaime Rey (AEMET) Introduction gust associated with the passage of a storm or low pressure (regional winds such as the Mistral are not Following the success of storm naming by MetEireann taken into account). and the Met Office in 2016-2017 (cf WGCEF Task Team • Area: Atlantic Ocean and western on Storm Naming in Europe ; Authors Cusack, Mediterranean Sea. Paterson, Lang, Csekits, WGCEF newsletter N°22), • The NMS who first issues an orange/red warn- three other countries in the south-western part of ing (or Vigilance) names the storm and informs the Europe - Spain, Portugal and France - decided to join three others. the process of storm naming, following recommenda- • A named Storm keeps the same name its whole tions of the Task Team. life. System specifications were discussed by partners The coordination with the North-west Group is crucial during the year 2017 via mail exchanges, then web- to ensure that the same storm gets a single name. If a conferences during Autumn 2017 allowed the Group storm is named by one group and moves to the other to finalise the process of storm naming for the south- group, it keeps the same name. In the rare cases west. The month of November was then used as a where a barotropic storm is a post-tropical storm, it blank test, before the system entered its operational keeps the name given by NHC Miami preceded by ‘Ex’.
    [Show full text]
  • Madagascar Enawo Report En.Pdf
    Preparedness and response to cyclones From the Prime Minister Head of Government, and floods in Madagascar, a concrete Minister of Interior and Decentralization progress Madagascar is the most exposed country to cyclone in Africa and the third most vulnerable to climate change in the World. An annual average of his report is based on the passage of 1 to 2 cyclones directly strike the country, causing immediate and long-term Intense Tropical Cyclone Enawo which direct consequences. They weaken both the affected households and the Taffected Madagascar in March 2017, economy of the country. The economic losses caused by a strong cyclone the strongest cyclone experienced by the are typically around 4% of the national Gross Domestic Product. country over the last 10 years. Fully aware of this real and permanent threat, the Malagasy Government, with the support of all partners, has yclone Enawo came in through the reinforced its efforts to strengthen resilience, reduce risks and prepare for disasters in Madagascar. Between North East of the country, at the level of 2015 and 2017, approximately $US 30 million were invested in this area which targeted the most vulnerable CAntalaha district, as a strong category regions to natural disasters. These efforts have obviously started to bear fruit if we refer to the results achieved 4 cyclone on Monday 06 March 2017 at night. Enawo then swept through the country striking when Intense Tropical Cyclone Enawo struck in March 2017. The resilience capacity of the community allowed to the highlands and got out of the country on limit damages and losses incurred by the passage of this cyclone.
    [Show full text]
  • Ref. Accweather Weather History)
    NOVEMBER WEATHER HISTORY FOR THE 1ST - 30TH AccuWeather Site Address- http://forums.accuweather.com/index.php?showtopic=7074 West Henrico Co. - Glen Allen VA. Site Address- (Ref. AccWeather Weather History) -------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------- AccuWeather.com Forums _ Your Weather Stories / Historical Storms _ Today in Weather History Posted by: BriSr Nov 1 2008, 02:21 PM November 1 MN History 1991 Classes were canceled across the state due to the Halloween Blizzard. Three foot drifts across I-94 from the Twin Cities to St. Cloud. 2000 A brief tornado touched down 2 miles east and southeast of Prinsburg in Kandiyohi county. U.S. History # 1861 - A hurricane near Cape Hatteras, NC, battered a Union fleet of ships attacking Carolina ports, and produced high tides and high winds in New York State and New England. (David Ludlum) # 1966 - Santa Anna winds fanned fires, and brought record November heat to parts of coastal California. November records included 86 degrees at San Francisco, 97 degrees at San Diego, and 101 degrees at the International airport in Los Angeles. Fires claimed the lives of at least sixteen firefighters. (The Weather Channel) # 1968 - A tornado touched down west of Winslow, AZ, but did little damage in an uninhabited area. (The Weather Channel) # 1987 - Early morning thunderstorms in central Arizona produced hail an inch in diameter at Williams and Gila Bend, and drenched Payson with 1.86 inches of rain. Hannagan Meadows AZ, meanwhile, was blanketed with three inches of snow. Unseasonably warm weather prevailed across the Ohio Valley. Afternoon highs of 76 degrees at Beckley WV, 77 degrees at Bluefield WV, and 83 degrees at Lexington KY were records for the month of November.
    [Show full text]
  • ANNUAL SUMMARY Atlantic Hurricane Season of 2005
    MARCH 2008 ANNUAL SUMMARY 1109 ANNUAL SUMMARY Atlantic Hurricane Season of 2005 JOHN L. BEVEN II, LIXION A. AVILA,ERIC S. BLAKE,DANIEL P. BROWN,JAMES L. FRANKLIN, RICHARD D. KNABB,RICHARD J. PASCH,JAMIE R. RHOME, AND STACY R. STEWART Tropical Prediction Center, NOAA/NWS/National Hurricane Center, Miami, Florida (Manuscript received 2 November 2006, in final form 30 April 2007) ABSTRACT The 2005 Atlantic hurricane season was the most active of record. Twenty-eight storms occurred, includ- ing 27 tropical storms and one subtropical storm. Fifteen of the storms became hurricanes, and seven of these became major hurricanes. Additionally, there were two tropical depressions and one subtropical depression. Numerous records for single-season activity were set, including most storms, most hurricanes, and highest accumulated cyclone energy index. Five hurricanes and two tropical storms made landfall in the United States, including four major hurricanes. Eight other cyclones made landfall elsewhere in the basin, and five systems that did not make landfall nonetheless impacted land areas. The 2005 storms directly caused nearly 1700 deaths. This includes approximately 1500 in the United States from Hurricane Katrina— the deadliest U.S. hurricane since 1928. The storms also caused well over $100 billion in damages in the United States alone, making 2005 the costliest hurricane season of record. 1. Introduction intervals for all tropical and subtropical cyclones with intensities of 34 kt or greater; Bell et al. 2000), the 2005 By almost all standards of measure, the 2005 Atlantic season had a record value of about 256% of the long- hurricane season was the most active of record.
    [Show full text]
  • 5.4.1 Severe Storms
    SECTION 5.4.1: RISK ASSESSMENT – SEVERE STORM 5.4.1 SEVERE STORMS This section provides a profile and vulnerability assessment for the severe storm hazards. HAZARD PROFILE Hazard profile information is provided in this section, including information on description, extent, location, previous occurrences and losses and the probability of future occurrences within Delaware County. Description For the purpose of this HMP and as deemed appropriated by Delaware County, the severe storm hazard includes hailstorms, windstorms, lightning, thunderstorms, tornadoes, and tropical cyclones (e.g. hurricanes, tropical storms, and tropical depressions), which are defined below. Since most northeasters, (or Nor’Easters) a type of an extra-tropical cyclone, generally take place during the winter weather months, Nor’Easters have been grouped as a type of severe winter weather storm, further discussed in Section 5.4.2 (Severe Winter Storm). Hailstorm: According to the National Weather Service (NWS), hail is defined as a showery precipitation in the form of irregular pellets or balls of ice more than five millimeters in diameter, falling from a cumulonimbus cloud (NWS, 2009). Early in the developmental stages of a hailstorm, ice crystals form within a low-pressure front due to the rapid rising of warm air into the upper atmosphere and the subsequent cooling of the air mass. Frozen droplets gradually accumulate on the ice crystals until, having developed sufficient weight; they fall as precipitation, in the form of balls or irregularly shaped masses of ice. The size of hailstones is a direct function of the size and severity of the storm. High velocity updraft winds are required to keep hail in suspension in thunderclouds.
    [Show full text]
  • The European Forecaster September 2018 (Full Version Pdf)
    The European Forecaster Newsletter of the WGCEF N° 23 September 2018 C ontents 3 Introduction Minutes of the 23rd Annual Meeting of the Working Group on Co-operation 4 Between European Forecasters (WGCEF) Sting Jets and other processes leading to high wind gusts: 10 wind-storms “Zeus” and “Joachim” compared 16 Forecasting Freezing Rain in the UK – March 1st and 2nd 2018 24 The Extreme Wildfire, 17-19 July 2017 in Split 30 Changing the Way we Warn for Weather Storm naming: the First Season of Naming by the South-west Group: 33 Spain-Portugal-France 38 Can we forecast the sudden dust storms impacting Israel's southernmost city? 45 The 31st Nordic Meteorological Meeting 46 Representatives of the WGCEF Cover: Ana was the first storm named by the Southwest Group (Spain, Portugal, France) during winter 2017-2018. It affected three countries with great impacts. Printed by Meteo France Editors Stephanie Jameson and Will Lang, Met Office Layout Kirsi Hindstrom- Basic Weather Services Published by Météo-France Crédit Météo-France COM/CGN/PPN - Trappes I ntroduction Dear Readers and Colleagues, It’s a great pleasure to introduce the 23rd edition of our newsletter ‘The European Forecaster’. The publica- tion is only possible due to the great work and generosity of Meteo-France, thus we want to express our warmest gratitude to Mr. Bernard Roulet and his colleagues. We kindly thank all the authors for submitting articles, particularly as they all work in operational forecasting roles and thus have only limited time for writing an article. Many thanks go to Mrs.
    [Show full text]
  • Madagascar: Cyclone Enawo Overview
    Madagascar: Cyclone Enawo Situation Report: No. 1 March 9, 2017 This report is issued by the Bureau National de Gestion des Risque et des Catastrophes (BNGRC) and the Humanitarian Country Team in Madagascar. It covers the period from 7 to 8 March 2017. Cyclone Enawo is wreaking havoc across Madagascar: towns and cities flooded; houses, schools, hospitals and critical infrastructure destroyed; and thousands of people displaced. Power outages are widespread in affected areas. More than 760,000 people in nine regions are expected to be directly affected by the strongest cyclone to strike the island nation in 13 years. Conditions are comparable to Cyclone Gafilo in 2004, which left 250,000 Malagasies displaced and 100,000 homes damaged in its wake. Another recent major tropical storm, Cyclone Ivan, affected more than half a million people and displaced nearly 200,000 in 2008. According to the national meteorological authority, threat levels remain highest (Red Alert) in the following regions: Diana, Sofia, Savan Analanjirofo, Atsinanana, Alaotra Mangoro, Boeny, Betsinoka, and Ny Faritanin’ Antananarivo. Madagascar also suffers from severe and chronic drought, particularly in the south of country. More than 850,000 people are severely food insecure. Overview Intense Tropical Cyclone Enawo struck northeastern Madagascar on the morning of March 7, travelling at two to three hundred kilometers per hour. On March 8, Enawo weakened from an “intense” to a “moderate” tropical storm, with an average speed of 80km/hour with peaks of 112km/hour. As Enawo moves further inland, the Government’s disaster management agency (BNGRC), the United Nations and NGOs are evacuating affected populations, passing on life-saving information to affected communities and responding to growing humanitarian needs.
    [Show full text]
  • Severe Storm
    Section 5.4.5: Risk Assessment – Severe Storm 5.4.5 Severe Storm The following section provides the hazard profile (hazard description, location, extent, previous occurrences and losses, probability of future occurrences, and impact of climate change) and vulnerability assessment for the severe weather hazard in Montgomery County. 5.4.5.1 Profile Hazard Description For the purpose of this HMP and as deemed appropriated by Montgomery County, the severe storm hazard includes hailstorms, windstorms, lightning, thunderstorms, tornadoes, and tropical cyclones [which include tropical depressions, tropical storms, and hurricanes], which are defined below. Since most northeasters, (or Nor’Easters) a type of an extra-tropical cyclone, generally take place during the winter weather months, Nor’Easters have been grouped as a type of severe winter weather storm, further discussed in Section 5.4.6 (Severe Winter Storms). Hailstorm Hail forms inside a thunderstorm where there are strong updrafts of warm air and downdrafts of cold water. If a water droplet is picked up by the updrafts, it can be carried well above the freezing level. Water droplets freeze when temperatures reach 32°F or colder. As the frozen droplet begins to fall, it may thaw as it moves into warmer air toward the bottom of the thunderstorm. However, the droplet may be picked up again by another updraft and carried back into the cold air and re-freeze. With each trip above and below the freezing level, the frozen droplet adds another layer of ice. The frozen droplet, with many layers of ice, falls to the ground as hail. Most hail is small and typically less than two inches in diameter (NWS 2010).
    [Show full text]
  • Application and Verification of ECMWF Products 2018
    UK UK Application and verification of ECMWF products 2018 Met Office. Contributing authors: Dan Suri, Marion Mittermaier, Rob Neal, Ric Crocker, Helen Titley and Becky Stretton. 1. Summary of major highlights ECMWF output is widely used by the Met Office at many timescales, especially the week 2 period where the Met Office is particularly dependant on ECMWF output. The heaviest users of ECMWF output are the Chief and Deputy Chief Meteorologists, who provide forecast guidance across the organisation for areas around the world and hydrometeorologists at the Flood Forecasting Centre. ECMWF output also forms part of 'BestData', a multi-model blend producing site-specific forecasts available, for example, on the Met Office public website. Meanwhile, the Met Office have been actively engaged in producing some novel and innovative tools to help operational meteorologists visualize ensemble output, creating and verifying regional weather regime forecasts via a tool known internally as the Decider system and developing a global hazard map, which includes a focus on tropical cyclones. 2. Use and application of products 2.1 Post-processing of ECMWF model output 2.1.1 Statistical adaptation Nothing to report. 2.1.2 Physical adaptation Nothing to report. 2.1.3 Derived fields The end of February and first days of March 2018 saw the most severe outbreak of cold winter weather in the UK for several years, as well as over much of western Europe, compounded by Storm Emma which came from the south and generated exceptional blizzards and freezing rain in the south of the country. The cold outbreak had been well predicted in advance, firstly from long-range predictions of a Sudden Stratospheric Warming increasing the risk of blocking, and then two weeks ahead from the Decider system.
    [Show full text]
  • Madagascar: Tropical Cyclones
    DREF n° MDRMG004 Madagascar: GLIDE n° TC-2009-000019-MDG TC-2009-000026-MDG 6 February 2009 Tropical cyclones The International Federation’s Disaster Relief Emergency Fund (DREF) is a source of un-earmarked money created by the Federation in 1985 to ensure that immediate financial support is available for Red Cross and Red Crescent response to emergencies. The DREF is a vital part of the International Federation’s disaster response system and increases the ability of national societies to respond to disasters. CHF 244,043 (USD 208,782 or EUR 162,122) has been allocated from the Federation’s Disaster Relief Emergency Fund (DREF) to support the National Society in delivering immediate assistance to some 5,000 families. Unearmarked funds to repay DREF are encouraged. Summary: Two tropical events hit Madagascar in succession between 18 and 24 January 2009. These caused extensive damage and flooding in three regions across the island, affecting more than 50,000 people and leaving more than 4,000 people homeless. Immediately after the cyclone political unrest occurred in the county. The unrest has resulted in injuries and extensive damage to property, and created further challenges to the ability of humanitarian agencies to mobilize an Satellite image of Tropical Storm Eric (east of effective response to the areas affected by Island) and Tropical Cyclone Fanale (West of the cyclones, leaving tens of thousands of Island) on 19th January 2009: people without assistance The Madagascar Red Cross Society (MRCS) has mobilized volunteers in all affected areas to distribute basic relief items and manage camps for the displaced.
    [Show full text]
  • Spatial and Temporal Variability of Tropical Storm and Hurricane Strikes
    Louisiana State University LSU Digital Commons LSU Master's Theses Graduate School 2007 Spatial and temporal variability of tropical storm and hurricane strikes in the Bahamas, and the Greater and Lesser Antilles Alexa Jo Andrews Louisiana State University and Agricultural and Mechanical College, aandre4@lsu.edu Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_theses Part of the Social and Behavioral Sciences Commons Recommended Citation Andrews, Alexa Jo, "Spatial and temporal variability of tropical storm and hurricane strikes in the Bahamas, and the Greater and Lesser Antilles" (2007). LSU Master's Theses. 3558. https://digitalcommons.lsu.edu/gradschool_theses/3558 This Thesis is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Master's Theses by an authorized graduate school editor of LSU Digital Commons. For more information, please contact gradetd@lsu.edu. SPATIAL AND TEMPORAL VARIABILITY OF TROPICAL STORM AND HURRICANE STRIKES IN THE BAHAMAS, AND THE GREATER AND LESSER ANTILLES A Thesis Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Master of Science in The Department of Geography and Anthropology by Alexa Jo Andrews B.S., Louisiana State University, 2004 December, 2007 Table of Contents List of Tables.........................................................................................................................iii
    [Show full text]