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International Agencies O World Meteorological Organization (Https
International Agencies o World Meteorological Organization (https://www.wmo.int/pages/index_en.html) o WMO Regional Climate Centers (http://www.wmo.int/pages/prog/wcp/wcasp/rcc/rcc.php) o World Air Quality Index (http://waqi.info) o International Research Institute for Climate and Society (https://iri.columbia.edu/) o Climate Research Institute (http://www.cru.uea.ac.uk) o Australia Bureau of Meteorology (http://www.bom.gov.au) o Cooperative Institute for Meteorological Studies (http://cimss.ssec.wisc.edu) U.S. Agencies National Centers for Environmental prediction (https://www.ncep.noaa.gov) o Aviation Weather Center (https://aviationweather.gov o Climate Prediction Center (http://www.cpc.noaa.gov) o Environmental Modeling Center (http://www.emc.ncep.noaa.gov) o National Hurricane Center (www.nhc.noaa.gov) o Ocean Prediction Center (http://www.opc.ncep.noaa.gov) o Space Weather Prediction Center (https://www.swpc.noaa.gov) o Storm Prediction Center (www.spc.noaa.gov) o Weather Prediction Center (www.wpc.ncep.noaa.gov) National Oceanic and Atmospheric Administration (https://noaa.gov) National Centers for Environmental Prediction (https://www.ngdc.noaa.gov) Formerly National Geophysical Data Center and National Climate Data Center National Severe Storms Laboratory (http://www.nssl.noaa.gov/) National Snow and Ice Data Center (http://nsidc.org/) National Operational Hydrologic Remote Sensing Center (www.nohrsc.noaa.gov) National Drought Mitigation Center (https://drought.unl.edu/) National Environmental Satellite, Data, & Information Service -
Worldwide Marine Radiofacsimile Broadcast Schedules
WORLDWIDE MARINE RADIOFACSIMILE BROADCAST SCHEDULES U.S. DEPARTMENT OF COMMERCE NATIONAL OCEANIC and ATMOSPHERIC ADMINISTRATION NATIONAL WEATHER SERVICE January 14, 2021 INTRODUCTION Ships....The U.S. Voluntary Observing Ship (VOS) program needs your help! If your ship is not participating in this worthwhile international program, we urge you to join. Remember, the meteorological agencies that do the weather forecasting cannot help you without input from you. ONLY YOU KNOW THE WEATHER AT YOUR POSITION!! Please report the weather at 0000, 0600, 1200, and 1800 UTC as explained in the National Weather Service Observing Handbook No. 1 for Marine Surface Weather Observations. Within 300 nm of a named hurricane, typhoon or tropical storm, or within 200 nm of U.S. or Canadian waters, also report the weather at 0300, 0900, 1500, and 2100 UTC. Your participation is greatly appreciated by all mariners. For assistance, contact a Port Meteorological Officer (PMO), who will come aboard your vessel and provide all the information you need to observe, code and transmit weather observations. This publication is made available via the Internet at: https://weather.gov/marine/media/rfax.pdf The following webpage contains information on the dissemination of U.S. National Weather Service marine products including radiofax, such as frequency and scheduling information as well as links to products. A listing of other recommended webpages may be found in the Appendix. https://weather.gov/marine This PDF file contains links to http pages and FTPMAIL commands. The links may not be compatible with all PDF readers and e-mail systems. The Internet is not part of the National Weather Service's operational data stream and should never be relied upon as a means to obtain the latest forecast and warning data. -
NWS Unified Surface Analysis Manual
Unified Surface Analysis Manual Weather Prediction Center Ocean Prediction Center National Hurricane Center Honolulu Forecast Office November 21, 2013 Table of Contents Chapter 1: Surface Analysis – Its History at the Analysis Centers…………….3 Chapter 2: Datasets available for creation of the Unified Analysis………...…..5 Chapter 3: The Unified Surface Analysis and related features.……….……….19 Chapter 4: Creation/Merging of the Unified Surface Analysis………….……..24 Chapter 5: Bibliography………………………………………………….…….30 Appendix A: Unified Graphics Legend showing Ocean Center symbols.….…33 2 Chapter 1: Surface Analysis – Its History at the Analysis Centers 1. INTRODUCTION Since 1942, surface analyses produced by several different offices within the U.S. Weather Bureau (USWB) and the National Oceanic and Atmospheric Administration’s (NOAA’s) National Weather Service (NWS) were generally based on the Norwegian Cyclone Model (Bjerknes 1919) over land, and in recent decades, the Shapiro-Keyser Model over the mid-latitudes of the ocean. The graphic below shows a typical evolution according to both models of cyclone development. Conceptual models of cyclone evolution showing lower-tropospheric (e.g., 850-hPa) geopotential height and fronts (top), and lower-tropospheric potential temperature (bottom). (a) Norwegian cyclone model: (I) incipient frontal cyclone, (II) and (III) narrowing warm sector, (IV) occlusion; (b) Shapiro–Keyser cyclone model: (I) incipient frontal cyclone, (II) frontal fracture, (III) frontal T-bone and bent-back front, (IV) frontal T-bone and warm seclusion. Panel (b) is adapted from Shapiro and Keyser (1990) , their FIG. 10.27 ) to enhance the zonal elongation of the cyclone and fronts and to reflect the continued existence of the frontal T-bone in stage IV. -
'Service Assessment': Hurricane Isabel September 18-19, 2003
Service Assessment Hurricane Isabel September 18-19, 2003 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Weather Service Silver Spring, Maryland Cover: Moderate Resolution Imaging Spectroradiometer (MODIS) Rapid Response Team imagery, NASA Goddard Space Flight Center, 1555 UTC September 18, 2003. Service Assessment Hurricane Isabel September 18-19, 2003 May 2004 U.S. DEPARTMENT OF COMMERCE Donald L. Evans, Secretary National Oceanic and Atmospheric Administration Vice Admiral Conrad C. Lautenbacher, Jr., U.S. Navy (retired), Administrator National Weather Service Brigadier General David L. Johnson, U.S. Air Force (Retired), Assistant Administrator Preface The hurricane is one of the most potentially devastating natural forces. The potential for disaster increases as more people move to coastlines and barrier islands. To meet the mission of the National Oceanic and Atmospheric Administration’s (NOAA) National Weather Service (NWS) - provide weather, hydrologic, and climatic forecasts and warnings for the protection of life and property, enhancement of the national economy, and provide a national weather information database - the NWS has implemented an aggressive hurricane preparedness program. Hurricane Isabel made landfall in eastern North Carolina around midday Thursday, September 18, 2003, as a Category 2 hurricane on the Saffir-Simpson Hurricane Scale (Appendix A). Although damage estimates are still being tabulated as of this writing, Isabel is considered one of the most significant tropical cyclones to affect northeast North Carolina, east central Virginia, and the Chesapeake and Potomac regions since Hurricane Hazel in 1954 and the Chesapeake-Potomac Hurricane of 1933. Hurricane Isabel will be remembered not for its intensity, but for its size and the impact it had on the residents of one of the most populated regions of the United States. -
To Marine Meteorological Services
WORLD METEOROLOGICAL ORGANIZATION Guide to Marine Meteorological Services Third edition PLEASE NOTE THAT THIS PUBLICATION IS GOING TO BE UPDATED BY END OF 2010. WMO-No. 471 Secretariat of the World Meteorological Organization - Geneva - Switzerland 2001 © 2001, World Meteorological Organization ISBN 92-63-13471-5 NOTE The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the World Meteorological Organization concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. TABLE FOR NOTING SUPPLEMENTS RECEIVED Supplement Dated Inserted in the publication No. by date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 CONTENTS Page FOREWORD................................................................................................................................................. ix INTRODUCTION......................................................................................................................................... xi CHAPTER 1 — MARINE METEOROLOGICAL SERVICES ........................................................... 1-1 1.1 Introduction .................................................................................................................................... 1-1 1.2 Requirements for marine meteorological information....................................................................... 1-1 1.2.1 -
Weather, Current and Routing Brief the Clipper 11/12 Round the World
Weather, Current and Routing Brief The Clipper 11/12 Round the World Race Prepared for the Race Skippers by Simon Rowell 27th April 2011 1. Leg One - Europe to Rio de Janeiro (early August to mid September) 4 1.1. The Route 4 1.2. The Weather 6 1.2.1. The Iberian Peninsula to the Canaries 6 1.2.2. The Canaries 10 1.2.3. The Canaries to the ITCZ, via the Cape Verdes 11 1.2.4. The ITCZ in the Atlantic 13 1.2.5. The ITCZ to Cabo Frio 16 1.3. Currents 18 1.3.1. The Iberian Peninsula to the Equator 18 1.3.2. The Equator to Rio 20 2. Leg 2 – Rio de Janeiro to Cape Town (mid September to mid October) 22 2.1. The Route 22 2.2. The Weather 22 2.3. Currents 27 3. Leg 3 – Cape Town to Western Australia (October to November) 29 3.1. The Route 29 3.2. The Weather 30 3.2.1. Southern Indian Ocean Fronts 34 3.3. Currents 35 3.3.1 Currents around the Aghulas Bank 35 3.3.2 Currents in the Southern Indian Ocean 37 4. Leg 4 –Western Australia to Wellington to Eastern Australia (mid November to December) 4.1. The Route 38 4.2. The Weather 39 4.2.1. Cape Leeuwin to Tasmania 39 4.2.2. Tasmania to Wellington and then to Gold Coast 43 4.3. Currents 47 5. Leg 5 – Gold Coast to Singapore to Qingdao (early January to end of February) 48 5.1. -
Manual on Marine Meteorological Services
Manual on Marine Meteorological Services Volume I – Global Aspects Annex VI to the WMO Technical Regulations 2012 edition Updated in 2018 WEATHER CLIMATE WATER CLIMATE WEATHER WMO-No. 558 Manual on Marine Meteorological Services Volume I – Global Aspects Annex VI to the WMO Technical Regulations 2012 edition Updated in 2018 WMO-No. 558 EDITORIAL NOTE The following typographical practice has been followed: Standard practices and procedures have been printed in bold. Recommended practices and procedures have been printed in regular font. Notes have been printed in smaller type. METEOTERM, the WMO terminology database, may be consulted at http://public.wmo.int/en/ resources/meteoterm. Readers who copy hyperlinks by selecting them in the text should be aware that additional spaces may appear immediately following http://, https://, ftp://, mailto:, and after slashes (/), dashes (-), periods (.) and unbroken sequences of characters (letters and numbers). These spaces should be removed from the pasted URL. The correct URL is displayed when hovering over the link or when clicking on the link and then copying it from the browser. WMO-No. 558 © World Meteorological Organization, 2012 The right of publication in print, electronic and any other form and in any language is reserved by WMO. Short extracts from WMO publications may be reproduced without authorization, provided that the complete source is clearly indicated. Editorial correspondence and requests to publish, reproduce or translate this publication in part or in whole should be addressed -
Regional Science Centers and Related Labs and Field Stations
NOAA’s National Weather Service (NWS) In Your Neighborhood Facilities National Support and Specialized Centers Alaska Aviation Weather Unit (AAWU) – Anchorage, AK AAWU provides en-route aviation weather forecasts and warnings for all of Alaska. The Unit also includes the Volcanic Ash Advisory Center for the North Pacific, which provides worldwide warnings and advisories to aviation interests regarding volcanic ash hazards. Central Pacific Hurricane Center (CPHC) – Honolulu, HI CPHC issues tropical cyclone warnings, watches, advisories, discussions, and statements for all tropical cyclones in the Central Pacific. Hydrologic Information Center (HIC) – Silver Spring, MD HIC provides real-time updates of current hydrologic conditions, flood watches & warnings, river forecasts, droughts, and related information. NOAA’s Office of Legislative Affairs Tel: 202-482-4981 http://www.legislative.noaa.gov March 2008 1 Hydrologic Research Laboratory (HRL) – Silver Spring, MD HRL conducts studies, investigations and analyses leading to the application of new scientific and computer technologies for hydrologic forecasting and related water resources problems. National Centers for Environmental Prediction (NCEP) – Camp Springs, MD NCEP gives overarching management to nine centers, which include the: • Aviation Weather Center (AWC) – Kansas City, MO: The AWC provides aviation warnings and forecasts of hazardous flight conditions at all levels within domestic and international air space. • Climate Prediction Center (CPC) – Camp Springs, MD: The CPC monitors and forecasts short-term climate fluctuations and provides information on the effects climate patterns can have on the nation. • Environmental Modeling Center (EMC) - Camp Springs, MD: The EMC develops and improves numerical weather, climate, hydrological and ocean prediction through a broad program in partnership with the research community. -
6A.4 the National Weather Service Unified Surface Analysis
6A.4 THE NATIONAL WEATHER SERVICE UNIFIED SURFACE ANALYSIS Robbie Berg* NWS/NCEP/National Hurricane Center, Miami, FL James Clark NWS/NCEP/Ocean Prediction Center, Camp Springs, MD David Roth NWS/NCEP/Hydrometeorological Prediction Center, Camp Springs, MD Thomas Birchard NWS/Honolulu Forecast Office, Honolulu, HI 1. INTRODUCTION 2. HISTORY The Unified Surface Analysis is a near- For several decades, various offices within hemispheric surface analysis created every six the NWS and its predecessor the U. S. Weather hours at the four synoptic times and produced by Bureau produced separate surface analyses which four different offices within the U. S. National covered geographic areas important to their Weather Service—the Hydrometeorological forecast and warning operations. These analyses Prediction Center (HPC), the Ocean Prediction usually overlapped and led to a duplication of Center (OPC), the National Hurricane Center effort by the offices—and often brought confusion (NHC), and the Honolulu Weather Forecast Office to users who would see features analyzed (HFO). While each office produces separate differently from office to office. To remedy this analyses to suit their own operational needs and redundancy, the various analysis centers agreed objectives, a process is in place whereby a to limit their analyses to their respective areas of collaboration between the four offices results in responsibility and to combine them to create one one seamless analysis covering an area of seamless Unified Surface Analysis covering much 177,106,111 km 2 , or about 70% of the Northern of the Northern Hemisphere (Figure 1). This effort Hemisphere. was intended to make the entire process more Users of any of the various surface efficient and to allow each center to bring its own analyses produced within the NWS may not be particular regional and meteorological expertise to aware that all contain contributions from the other the analysis process. -
Oceanic Cyclone Analysis and Forecasting at the NCEP/Ocean Prediction Center: the Role of Observations & Progress in Medium Range Forecasting
Oceanic Cyclone Analysis and Forecasting at the NCEP/Ocean Prediction Center: The Role of Observations & Progress in Medium Range Forecasting James D Clark – National Center for Environmental Prediction, Camp Springs, MD 1. Introduction The Ocean Prediction Center’s (OPC) primary responsibility is the issuance of marine warnings, forecasts, and guidance in both text and graphical formats for maritime users over the Northern hemisphere Atlantic and Pacific marine areas extending from 20°N to 67°N for purposes of protection of life and property, safety at sea, and the enhancement of economic opportunity. In addition, these forecast products fulfill the US obligations under the World Meteorological Organization and Safety of Life at Sea Convention. A brief summary of US National Weather Service marine and coastal weather services and OPC forecast operations will be given in section two. This paper emphasizes OPC’s handling of atmospheric and oceanographic observations over the data sparse oceans from a fore - caster’s perspective, specifically, the visualization techniques utilized to rapidly determine model initialization errors, model trends, and global model differences. Examples focusing on the use of observations in the forecast and verification of extreme events will be presented in the third portion. The fourth section of this paper centers on the recent progress made in medium range forecasting at OPC, including warning criteria probabilities through the use of the NCEP Global Ensemble Forecast System and ECMWF Ensemble Prediction System members. In the final part of this paper a summary with upcoming OPC science priorities will be offered. Fig. 1 OPC Atlantic 500 hPa analysis. Fig . -
Report from Australia
REPORT FROM AUSTRALIA 1. Introduction Australia has responsibility under the GMDSS as the Issuing Service for MSI for Metarea X. The meteorological services of New Zealand and Fiji are recognised as Preparation Services for the eastern margins of the Metarea. The meteorological services of Mauritius and France (Reunion) are considered to be Preparation Services for the western margins. GMDSS services in Australia are restricted to broadcasts of the GMDSS SafetyNET broadcasts via Inmarsat-C. For mainly historical, geographical and economic reasons NAVTEX has not been established in Australia. Recently, following the takeover of Xantic, the operator of the Perth LES, by Stratos, operation of the MSI broadcasts for Metarea X for both the IOR and POR will be transferred to the Burum LES in the Netherlands during the first half of 2007. On the whole, this change is expected to be transparent to SafetyNET users, with the exception of a few transition issues. These issues will be discussed further in section 5 of this paper. 2. The SafetyNET service in Metarea X The SafetyNET service in Metarea X comprises high seas forecasts and warnings for the Northern, North Eastern, South Eastern and Western areas of the high seas within the Australian area of responsibility (See Fig. 1) including services for selected coastal waters regions. The likelihood that the service may one day be extended to all Australian coastal zones has been canvassed at various times over recent years. It has not been demonstrated that demand is strong enough for such an extension. In addition, there is a continuing concern that bandwidth in the system will not be sufficient enough to allow a significant increase in ongoing routine traffic given the number and size of the additional messages that would be involved. -
ARCTIC Special Interest Group
ARCTIC Special Interest Group It is my pleasure to share with you to the first ARCTIC-SIG Newsletter. We are sure that you will soon share our sense of satisfaction in setting in place this already growing association under the auspices of the Canadian Meteorology and Oceanography Society (CMOS). We hope that you will take advantage of the collaborations that this Special Interest Group can facilitate as a national hub of collaboration and exchange of arctic and northern ideas. The most direct tangible benefits for members is a better awareness of the significant body of meteorological and oceanographic research and operations taking place in our Arctic, and to foster new collaborations, partnerships and opportunities. From the onset, the Arctic-SIG has received significant financial support from the CMOS National Council to help stand-up this important forum. The SIG’s Executive also chose to the not levy a fee for SIG membership. We will therefore be seeking corporate, academic & Government funding to help put in place required operating funds to move forward on the SIG agenda. In addition, we are also calling to the SIG members to consider making a donation through your CMOS membership registration to be allocated directly to the SIG. Any amount will be welcomed. As we progress, it is my hope that the Arctic-SIG will move forward from a small Arctic- forum to a growing association that is fully engaged in scientific research, discussions to better foster collaborations. Most importantly, we can provide to you a voice to arctic and northern scientific issues related to meteorology and oceanography.