NASA's Aqua Satellite Sees Typhoon Francisco Approaching Japan 22 October 2013, by Rob Gutro

Total Page:16

File Type:pdf, Size:1020Kb

NASA's Aqua Satellite Sees Typhoon Francisco Approaching Japan 22 October 2013, by Rob Gutro NASA's Aqua satellite sees Typhoon Francisco approaching Japan 22 October 2013, by Rob Gutro quadrants of the storm as Francisco moved toward Japan. The image was created by the NASA MODIS Rapid Response Team at NASA's Goddard Space Flight Center in Greenbelt, Md. On Oct. 22 at 1500 UTC/11 a.m. EDT, Typhoon Francisco had maximum sustained winds near 75 knots/86.1 mph/138.9 kph. It was centered about 350 nautical miles east-southeast of Kadena Air Base, Okinawa, Japan, near 23.2 north and 133.1 east. The strongest winds, typhoon-force extend 40 nautical miles/46 miles/74 km from the center, or 80 nautical miles/92 miles/148 km in diameter. Tropical-storm-force winds extend as far as 130 nautical miles/149.6 miles/ 240.8 km from the center, making the storm over 260 miles in diameter. Francisco was moving to the northwest at 7 knots/8 mph/12.9 kph, but is expected to turn to the northeast in the next day or two. As Francisco heads toward Japan, the storm is stirring up very rough seas with wave heights topping 30 feet, according to the Joint Typhoon Warning Center. On Oct. 22, Japan's southern islands were all under On Oct. 22 at 04:30 UTC/12:30 a.m. EDT, NASA's Aqua advisory status for high waves and/or gale force satellite captured this stunning visible image of Typhoon winds. Francisco approaching Japan (top left corner in the Pacific Ocean. Credit: NASA Goddard MODIS Rapid Francisco continues to slowly weaken and is Response Team expected to become extra-tropical after passing southern Japan in the next couple of days. Typhoon Francisco was already spreading fringe Provided by NASA's Goddard Space Flight Center clouds over southern Japan when NASA's Aqua satellite flew overhead and captured a picture of the storm from space. On Oct. 22 at 04:30 UTC/12:30 a.m. EDT, NASA's Aqua satellite captured a stunning visible image of Typhoon Francisco approaching Japan that showed a large storm with a tightly wound center and small eye. Bands of thunderstorms wrapped into the center from the northern and southern 1 / 2 APA citation: NASA's Aqua satellite sees Typhoon Francisco approaching Japan (2013, October 22) retrieved 27 September 2021 from https://phys.org/news/2013-10-nasa-aqua-satellite-typhoon- francisco.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. 2 / 2 Powered by TCPDF (www.tcpdf.org).
Recommended publications
  • Characteristics of Satellite-Based Ocean Turbulent Heat Flux Around the Korean Peninsula and Relationship with Changes in Typhoon Intensity
    remote sensing Article Characteristics of Satellite-Based Ocean Turbulent Heat Flux around the Korean Peninsula and Relationship with Changes in Typhoon Intensity Jaemin Kim and Yun Gon Lee * Atmospheric Sciences, Department of Astronomy, Space Science, and Geology, Chungnam National University, Daejeon 34134, Korea; [email protected] * Correspondence: [email protected]; Tel.: +82-042-821-7107 Abstract: Ocean-atmosphere energy exchange is an important factor in the maintenance of oceanic and atmospheric circulation and the regulation of meteorological and climate systems. Oceanic sensible and latent heat fluxes around the Korean Peninsula were determined using satellite-based air-sea variables (wind speed, sea surface temperature, and atmospheric specific humidity and temperature) and the coupled ocean-atmosphere response experiment (COARE) 3.5 bulk algorithm for six years between 2014 and 2019. Seasonal characteristics of the marine heat flux and its short- term fluctuations during summer typhoons were also investigated. Air-sea variables were produced through empirical relationships and verified with observational data from marine buoys around the Korean Peninsula. Satellite-derived wind speed, sea surface temperature, atmospheric specific humidity, and air temperature were strongly correlated with buoy data, with R2 values of 0.80, 0.97, 0.90, and 0.91, respectively. Satellite-based sensible and latent heat fluxes around the peninsula were also validated against fluxes calculated from marine buoy data, and displayed low values in summer and higher values in autumn and winter as the difference between air-sea temperature and specific humidity increased. Through analyses of spatio-temporal fluctuations in the oceanic turbulent heat Citation: Kim, J.; Lee, Y.G.
    [Show full text]
  • Lecture 15 Hurricane Structure
    MET 200 Lecture 15 Hurricanes Last Lecture: Atmospheric Optics Structure and Climatology The amazing variety of optical phenomena observed in the atmosphere can be explained by four physical mechanisms. • What is the structure or anatomy of a hurricane? • How to build a hurricane? - hurricane energy • Hurricane climatology - when and where Hurricane Katrina • Scattering • Reflection • Refraction • Diffraction 1 2 Colorado Flood Damage Hurricanes: Useful Websites http://www.wunderground.com/hurricane/ http://www.nrlmry.navy.mil/tc_pages/tc_home.html http://tropic.ssec.wisc.edu http://www.nhc.noaa.gov Hurricane Alberto Hurricanes are much broader than they are tall. 3 4 Hurricane Raymond Hurricane Raymond 5 6 Hurricane Raymond Hurricane Raymond 7 8 Hurricane Raymond: wind shear Typhoon Francisco 9 10 Typhoon Francisco Typhoon Francisco 11 12 Typhoon Francisco Typhoon Francisco 13 14 Typhoon Lekima Typhoon Lekima 15 16 Typhoon Lekima Hurricane Priscilla 17 18 Hurricane Priscilla Hurricanes are Tropical Cyclones Hurricanes are a member of a family of cyclones called Tropical Cyclones. West of the dateline these storms are called Typhoons. In India and Australia they are called simply Cyclones. 19 20 Hurricane Isaac: August 2012 Characteristics of Tropical Cyclones • Low pressure systems that don’t have fronts • Cyclonic winds (counter clockwise in Northern Hemisphere) • Anticyclonic outflow (clockwise in NH) at upper levels • Warm at their center or core • Wind speeds decrease with height • Symmetric structure about clear "eye" • Latent heat from condensation in clouds primary energy source • Form over warm tropical and subtropical oceans NASA VIIRS Day-Night Band 21 22 • Differences between hurricanes and midlatitude storms: Differences between hurricanes and midlatitude storms: – energy source (latent heat vs temperature gradients) - Winter storms have cold and warm fronts (asymmetric).
    [Show full text]
  • FEMA Daily Situation Report
    The Disaster Center is dedicated to the idea that disaster mitigation is cost effective and individuals pursuing their own interest are the greatest potential force for disaster reduction. Please consider making a small donation to the Disaster Center When disaster mitigation is cost effective, we are on the road to bringing disasters to an end. •Daily Operations Briefing Friday, October 18, 2013 8:30 a.m. EDT 1 Significant Activity: Oct 17 – 18 Significant Events: None Tropical Activity: • Atlantic – Tropical cyclone activity is not expected during the next 48 hours • Eastern Pacific – Area 1 (20%) • Central Pacific – Area 1 (10%) • Western Pacific – Typhoon Francisco (26W) Significant Weather: • Slight risk of severe thunderstorms – west central Texas • Heavy rainfall – Gulf Coast • Critical Fire Weather Areas / Red Flag Warnings: None • Space Weather: Past 24 hours: Minor/R1 radio blackouts observed; 24 hours: None predicted Earthquake Activity: No significant activity Declaration Activity: • Amendment No. 3 to FEMA-4129-DR-NY • Major Disaster Declaration requests for California, Arizona and the Santa Clara Pueblo 2 Atlantic – Tropical Outlook Updates at 2:00 am/pm and 8:00 am/pm EDT 3 Eastern Pacific – Tropical Outlook http://www.nhc.noaa.gov/gtwo_epac.shtml This product is updated at approximately 5 AM, 11 AM, 5 PM, and 11 PM PDT from May 15 to November 30. Special outlooks may be issued as conditions warrant. 4 Eastern - Area 1 As of 8:00 a.m. EDT • Located 425 miles south of Gulf of Tehuantepec • Producing disorganized showers and thunderstorms • Conducive for slow development during next several days • Probability of tropical cyclone development: • Next 48 hours: Low ( 20%) • Next 5 days: Medium ( 40%) 5 Central Pacific – Tropical Outlook http://www.prh.noaa.gov/hnl/cphc/ This product is updated at approximately 5 AM, 11 AM, 5 PM, and 11 PM PDT from May 15 to November 30.
    [Show full text]
  • A Climatology of Tropical Cyclone Size in the Western North Pacific Using an Alternative Metric Thomas B
    Florida State University Libraries Electronic Theses, Treatises and Dissertations The Graduate School 2017 A Climatology of Tropical Cyclone Size in the Western North Pacific Using an Alternative Metric Thomas B. (Thomas Brian) McKenzie III Follow this and additional works at the DigiNole: FSU's Digital Repository. For more information, please contact [email protected] FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES A CLIMATOLOGY OF TROPICAL CYCLONE SIZE IN THE WESTERN NORTH PACIFIC USING AN ALTERNATIVE METRIC By THOMAS B. MCKENZIE III A Thesis submitted to the Department of Earth, Ocean and Atmospheric Science in partial fulfillment of the requirements for the degree of Master of Science 2017 Copyright © 2017 Thomas B. McKenzie III. All Rights Reserved. Thomas B. McKenzie III defended this thesis on March 23, 2017. The members of the supervisory committee were: Robert E. Hart Professor Directing Thesis Vasubandhu Misra Committee Member Jeffrey M. Chagnon Committee Member The Graduate School has verified and approved the above-named committee members, and certifies that the thesis has been approved in accordance with university requirements. ii To Mom and Dad, for all that you’ve done for me. iii ACKNOWLEDGMENTS I extend my sincere appreciation to Dr. Robert E. Hart for his mentorship and guidance as my graduate advisor, as well as for initially enlisting me as his graduate student. It was a true honor working under his supervision. I would also like to thank my committee members, Dr. Vasubandhu Misra and Dr. Jeffrey L. Chagnon, for their collaboration and as representatives of the thesis process. Additionally, I thank the Civilian Institution Programs at the Air Force Institute of Technology for the opportunity to earn my Master of Science degree at Florida State University, and to the USAF’s 17th Operational Weather Squadron at Joint Base Pearl Harbor-Hickam, HI for sponsoring my graduate program and providing helpful feedback on the research.
    [Show full text]
  • Pdf | 431.12 Kb
    ASIA PACIFIC REGION 22 - 28 October, 2013 Weekly Regional Humanitarian Snapshot from the OCHA Regional Office in Asia and the Pacific 1 PHILIPPINES Probability of Above/Below As of 21 Oct, the 7.2M earthquake in Bohol had killed 186 people, affected some 3 Normal Precipitation r" million, and left nearly 381,000 people displaced of whom 70% or 271,000 were staying (Nov 2013 - Jan 2014) outside of established evacuation centers. These people were in urgent need of shelter Above normal rainfall and WASH support. Psycho-social support was identified as an urgent need for children traumatized by the earthquake, which has produced well over 2,000 aftershocks so far. Recently repaired bridges and roads have opened greater access to affected locations M O N G O L I A normal in Bohol. The Government has welcomed international assistance. Source: OCHA Sitrep No. 4 DPR KOREA Below normal rainfall 2 CAMBODIA 5 Floods across Cambodia have claimed 168 lives, displaced almost 145,000 and 5 RO KOREA JAPAN r" p" u" affected more than 1.7 million. Waters have begun to recede across the country with the worst affected provinces being Battambang and Banteay Meanchey, where many parts C H I N A LEKIMA KOBE remain flooded. Communities are in urgent need of clean water, basic sanitation and BHUTAN emergency shelter. NEPAL p" 5 Source: HRF Sitrep No. 4 KATHMANDU 3 INDIA PA C I F I C Heavy rainfall has been affecting the states of Andhra Pradesh and Odisha, SE India, in BANGLADESH FRANCISCO I N D I A u" the last few days.
    [Show full text]
  • A Study of the Interaction Between Typhoon Francisco (2013) and a Cold-Core Eddy. Part II: Boundary Layer Structures
    AUGUST 2020 M A E T A L . 2865 A Study of the Interaction between Typhoon Francisco (2013) and a Cold-Core Eddy. Part II: Boundary Layer Structures ZHANHONG MA,JIANFANG FEI,XIAOGANG HUANG,XIAOPING CHENG, AND LEI LIU College of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China (Manuscript received 11 December 2019, in final form 12 June 2020) ABSTRACT In Part II of this study, the influence of an oceanic cold-core eddy on the atmospheric boundary layer structures of Typhoon Francisco (2013) is investigated, as well as a comparison with the cold wake effect. Results show that the eddy induces shallower mixed-layer depth and forms stable boundary layer above and near it. The changes of these features shift from northwest to southeast across the storm eye, following the translation of Francisco over the eddy. Nonetheless, the decrease in mixed-layer depth and formation of stable boundary layer caused by the cold wake are located at right rear of the storm. The sensible heat fluxes at the lowest atmospheric model level are mostly downward over the sea surface cooling region. Due to their different relative locations with Francisco, the diabatic heating in the northwest quadrant of the storm can be more effectively inhibited by the cold-core eddy than by the cold wake. The asymmetric characteristics of surface tangential wind are less sensitive to sea surface cooling than those of surface radial wind, implying a change in surface inflow angle. Different from previous studies, the surface inflow angle is found to be reduced especially above the cold-core eddy and cold wake region.
    [Show full text]
  • Tropical Cyclones 2019
    << LINGLING TRACKS OF TROPICAL CYCLONES IN 2019 SEP (), !"#$%&'( ) KROSA AUG @QY HAGIBIS *+ FRANCISCO OCT FAXAI AUG SEP DANAS JUL ? MITAG LEKIMA OCT => AUG TAPAH SEP NARI JUL BUALOI SEPAT OCT JUN SEPAT(1903) JUN HALONG NOV Z[ NEOGURI OCT ab ,- de BAILU FENGSHEN FUNG-WONG AUG NOV NOV PEIPAH SEP Hong Kong => TAPAH (1917) SEP NARI(190 6 ) MUN JUL JUL Z[ NEOGURI (1920) FRANCISCO (1908) :; OCT AUG WIPHA KAJIK() 1914 LEKIMA() 1909 AUG SEP AUG WUTIP *+ MUN(1904) WIPHA(1907) FEB FAXAI(1915) JUL JUL DANAS(190 5 ) de SEP :; JUL KROSA (1910) FUNG-WONG (1927) ./ KAJIKI AUG @QY @c NOV PODUL SEP HAGIBIS() 1919 << ,- AUG > KALMAEGI OCT PHANFONE NOV LINGLING() 1913 BAILU()19 11 \]^ ./ ab SEP AUG DEC FENGSHEN (1925) MATMO PODUL() 191 2 PEIPAH (1916) OCT _` AUG NOV ? SEP HALONG (1923) NAKRI (1924) @c MITAG(1918) NOV NOV _` KALMAEGI (1926) SEP NAKRI KAMMURI NOV NOV DEC \]^ MATMO (1922) OCT BUALOI (1921) KAMMURI (1928) OCT NOV > PHANFONE (1929) DEC WUTIP( 1902) FEB 二零一 九 年 熱帶氣旋 TROPICAL CYCLONES IN 2019 2 二零二零年七月出版 Published July 2020 香港天文台編製 香港九龍彌敦道134A Prepared by: Hong Kong Observatory 134A Nathan Road Kowloon, Hong Kong © 版權所有。未經香港天文台台長同意,不得翻印本刊物任何部分內容。 © Copyright reserved. No part of this publication may be reproduced without the permission of the Director of the Hong Kong Observatory. 本刊物的編製和發表,目的是促進資 This publication is prepared and disseminated in the interest of promoting 料交流。香港特別行政區政府(包括其 the exchange of information. The 僱員及代理人)對於本刊物所載資料 Government of the Hong Kong Special 的準確性、完整性或效用,概不作出 Administrative Region
    [Show full text]
  • OFFICE of the GOVERNOR Honorable Governor Eloy S
    COMMONWEALTH OF THE NORTHERN MARIANA ISLANDS HOMELAND SECURITY AND EMERGENCY MANAGEMENT OFFICE OF THE GOVERNOR Honorable Governor Eloy S. Inos Marvin K. Seman, SAHSEM Honorable Lt. Governor Jude U. Hofschneider SPECIAL MARINE ADVISORY (HIGH SURF AND SMALL CRAFT ADVISORY) OCTOBER 18, 2013 2:50 P.M. BASED ON THE INFORMATION RECEIVED FROM THE NATIONAL WEATHER SERVICE, TIYAN GUAM AND COMPILED AT THE CNMI HOMELAND SECURITY AND EMERGENCY MANAGEMENT, OFFICE OF THE GOVERNOR, GOVERNOR ELOY S. INOS WOULD LIKE TO INFORM THE GENERAL PUBLIC THAT, TYPHOON FRANCISCO REMAINS WEST-NORTHWEST OF GUAM. THE STORM IS EXPECTED TO CONTINUE MOVING TO THE NORTHWEST OVER THE NEXT 12 HOURS. LARGE NORTHWEST SWELL FROM THE TYPHOON WILL CONTINUE TO REACH THE MARIANAS THE NEXT FEW DAYS. ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 3 PM CHST TUESDAY... SURF WILL BE HAZARDOUS AT 9 TO 11 FEET ALONG SOUTH WEST AND NORTH FACING REEFS THROUGH FRIDAY. SURF WILL DIMINISH SLIGHTLY OVER THE WEEKEND BUT REMAIN HAZARDOUS THROUGH TUESDAY. .. A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CHST SUNDAY... A SMALL CRAFT ADVISORY MEANS THAT SEAS 10 FEET OR GREATER AND SUSTAINED WINDS OF 25 TO 38 MPH ARE EXPECTED TO PRODUCE CONDITIONS HAZARDOUS TO SMALL CRAFT. * WINDS OF 20 TO 30 KNOTS WITH OCCASIONAL GUSTS TO GALE FORCE ARE EXPECTED THROUGH FRIDAY. * SEAS WILL RANGE BETWEEN 10 AND 14 FEET THROUGH FRIDAY, THEN GRADUALLY DIMINISH. SEAS WILL STAY AT OR ABOVE 10 FEET THROUGH SUNDAY MORNING. TROPICAL STORM WATCH REMAINS IN EFFECT FOR ROTA, TINIAN, SAIPAN AND THE ADJACENT COASTAL WATERS OUT TO 40 NM PRECAUTIONARY/PREPAREDNESS ACTIONS..
    [Show full text]
  • MEMBER REPORT [Republic of Korea]
    MEMBER REPORT [Republic of Korea] ESCAP/WMO Typhoon Committee 14th Integrated Workshop Guam, USA 4 – 7 November 2019 CONTENTS I. Overview of tropical cyclones which have affected/impacted Member’s area since the last Committee Session 1. Meteorological Assessment 2. Hydrological Assessment 3. Socio-Economic Assessment II. Summary of Progress in Priorities supporting Key Result Areas 1. The Web-based Portal to Provide Products of Seasonal Typhoon Activity Outlook for TC Members (POP1) 2. Technology Transfer of Typhoon Operation System (TOS) to the Macao Meteorological and Geophysical Bureau (POP4) 3. 2019 TRCG Research Fellowship Scheme by KMA 4. Co-Hosted the 12th Korea-China Joint Workshop on Tropical Cyclones 5. Improved KMA’s Typhoon Intensity Classification 6. Operational Service of GEO-KOMPSAT-2A 7. Developing Typhoon Analysis Technique for GEO-KOMPSAT-2A 8. Preliminary Research on Establishment of Hydrological Data Quality Control in TC Members 9. Task Improvement to Increase Effects in Flood Forecasting 10. Enhancement of Flood Forecasting Reliability with Radar Rainfall Data 11. Flood Risk Mapping of Korea 12. Expert Mission 13. Setting up Early Warning and Alert System in Lao PDR and Vietnam 14. The 14th Annual Meeting of Typhoon Committee Working Group on Disaster Risk Reduction 15. Sharing Information Related to DRR I. Overview of tropical cyclones which have affected/impacted Member’s area since the last Committee Session 1. Meteorological Assessment (highlighting forecasting issues/impacts) Twenty typhoons have occurred up until 18 October 2019 in the western North Pacific basin. The number of typhoons in 2019 was below normal, compared to the 30-year (1981-2010) average number of occurrences (25.6).
    [Show full text]
  • Forecasting Tropical Cyclones in the Western North Pacific Basin Using
    JUNE 2016 T A L L A P R AGADA ET AL. 877 Forecasting Tropical Cyclones in the Western North Pacific Basin Using the NCEP Operational HWRF Model: Model Upgrades and Evaluation of Real-Time Performance in 2013 a a,b,d a,b a a,b VIJAY TALLAPRAGADA, CHANH KIEU, SAMUEL TRAHAN, QINGFU LIU, WEIGUO WANG, a,b a,b a,b a,b c ZHAN ZHANG, MINGJING TONG, BANGLIN ZHANG, LIN ZHU, AND BRIAN STRAHL a NOAA/NWS/NCEP/Environmental Modeling Center, College Park, Maryland b I. M. Systems Group, Rockville, Maryland c Joint Typhoon Warning Center, Pearl Harbor, Hawaii d Atmospheric Science, Department of Geological Sciences, Indiana University, Indiana (Manuscript received 22 October 2014, in final form 19 October 2015) ABSTRACT This study presents evaluation of real-time performance of the National Centers for Environmental Prediction (NCEP) operational Hurricane Weather Research and Forecast (HWRF) modeling system upgraded and implemented in 2013 in the western North Pacific basin (WPAC). Retrospective experiments with the 2013 version of the HWRF Model upgrades for 2012 WPAC tropical cyclones (TCs) show significant forecast improvement compared to the real-time forecasts from the 2012 version of HWRF. Despite a larger number of strong storms in the WPAC during 2013, real-time forecasts from the 2013 HWRF (H213) showed an overall reduction in intensity forecast errors, mostly at the 4–5-day lead times. Verification of the H213’s skill against the climate persistence forecasts shows that although part of such improvements in 2013 is related to the different seasonal characteristics between the years 2012 and 2013, the new model upgrades im- plemented in 2013 could provide some further improvement that the 2012 version of HWRF could not achieve.
    [Show full text]
  • MWL Aug 2014 Draft 1A BOX
    MarinersMariners WEATHER LOGWEATHER LOG Volume 58, Number 2 August 2014 From the Editor Greetings! Welcome to another edition of the Mariners Weather Log. We are smack dab in the middle of hurricane season and our first named storm of the season, Arthur, occurred on July 1st. Tropical Storm Arthur reached hurricane strength on July 3rd off the coast of Mariners Weather Log South Carolina making for a very soggy 4th of July Independence ISSN 0025-3367 Day celebration. Hurricane Arthur has become the first hurricane to make landfall in the continental U.S. since hurricane Isaac struck U.S. Department of Commerce Louisiana on August 28/29th in 2012. With this, I want to remind you Dr. Kathryn D. Sullivan that your marine weather observations really do matter. The data we Under Secretary of Commerce for Oceans and Atmosphere & Acting NOAA Administrator receive from you gets ingested directly into the models, thus you give Acting Administrator the National Weather Service a much better confidence in forecasts National Weather Service and analysis…thank you in advance and we count on your participa- Dr. Louis Uccellini tion. For a full complement of hurricane information you can always NOAA Assistant Administrator for Weather Services go to the National Hurricane Center. For a full explanation on how Editorial Supervisor the Climate Prediction Center in collaboration with the hurricane Paula M. Rychtar experts from the National Hurricane Center and the Hurricane Research Division produce their seasonal outlook you can go to: Layout and Design Stuart Hayes http://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml.
    [Show full text]
  • Report for Typhoon
    Country Report ( 2007 ) For the 40th Session of the Typhoon Committee ESCAP/WMO Macao, China 21–26 November 2007 People’s Republic of China 1 I. Overview of Meteorological and Hydrological Conditions 1. Meteorological Assessment From Oct. 1st 2006 to Sep. 30th 2007, altogether 23 tropical cyclones (including tropical storms, severe tropical storms, typhoons, severe typhoons and super typhoons) formed over the Western North Pacific and the South China Sea (Fig. 1.1). Among them, 8 TCs formed from Oct. 1st to Dec. 31st in 2006 and 4 of them affected China’s coastal waters but didn’t land on China’s coastal areas. They were super typhoon Cimaron (0619), super typhoon Chebi 0620), super typhoon Durian (0621) and severe typhoon Utor (0622). In 2007, 15 tropical cyclones formed over the Western North Pacific and the South China Sea. The number was obviously less than the average (19.7) during the corresponding period from 1949 to 2006. And 9 of them developed into typhoons or beyond, which accounted for 60.0% of the total. The percentage was higher than the average (58.6%). During the same period, 4 TCs formed over the South China Sea. The number was slightly less than the average (4.7). Moreover, 6 TCs made landfalls over China coastal areas, all of them exceed tropical storm category. They were tropical storm Toraji (0703), severe tropical storm Pabuk 0706), tropical storm Wupit 0707), super typhoon Sepat (0708), super typhoon Wipha 0712) and tropical storm Francisco (0713). The total landed TC number was slightly less than the average (about 6.79), but the percentage of landed TCs (40.0%) was obviously above the average (30.8%).
    [Show full text]