gov.noaa.ncdc:C00506 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce 20000801 document http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http browser NOAA National Data Center (NNDC) Online Store More information and pricing for this document order 1998-1999 Tornadoes and a Long Term U.S. Tornado Climatology is a technical report, created by and available from, the National Climatic Data Center (NCDC). This report provides long-term climatological summaries and maps for tornadoes in the United States, with specific information concerning tornadoes during 1998-1999. The years 1998 and 1999 were quite active for tornadoes in the US, with well-above average numbers of fatalities. It is interesting to note that the winter-spring of 1998 was dominated by El Nino conditions, while the winter-spring of 1999 was dominated by La Nina, thus showing that active tornado seasons may occur in either situation. However, the 1998 season was much more active in the southeast, while 1999 saw a shift of activity farther west--very much as expected. Also, these 2 years produced a total of 3 tornadoes of F5 intensity and 11 tornadoes of F4 intensity, for a total of 14 in the violent F4-F5 category. To make a wide range of climatic data available to researchers and the public. technical report C00506 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 18800101 19991231 Ground Condition Complete As Needed 170.0 -66.0 72.0 15.0 ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 health 009 society 016 structure 017 GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > TORNADOS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS EARTH SCIENCE > HUMAN DIMENSIONS > HUMAN HEALTH > VITAL STATISTICS EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE > BUILDINGS EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > METEOROLOGICAL HAZARDS GGCMD Earth Science Services EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING GCMD Location Valids UNITED STATES OF AMERICA GCMD Location Valids LAND SURFACE 1 None None http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 NCDC Online Store: Image or description of the product or data set provided Image or description of the Product or Data Set provided Not provided Unknown Completeness information not available. Unknown Unknown 1998-1999 Tornadoes and a Long Term U.S. Tornado Climatology is a technical report that is available at the NCDC. None National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.orders@noaa.gov 8:00 - 6:00 Eastern http://www.ncdc.noaa.gov/oa/about/ncdcordering.html Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. PDF http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=C00506-PUB-A0001 http browser NOAA National Data Center (NNDC) Online Store More information and pricing for this document order Fees, if applicable, are displayed on the web page for obtaining these data; fees are also dependent on customer order specifications. Please contact NCDC for further information on fees and terms for retrieving these data. Visit the web page for ordering these data online, or contact NCDC to place an order through Customer Services. For more information about ordering from NCDC, visit http://www.ncdc.noaa.gov/oa/about/ncdcordering.html. 20070424 20070424 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.metadata@noaa.gov 8:00 - 6:00 Eastern Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/remote-sensing-metadata Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 http://www.eis.noaa.gov/fgdc/fgdcleg.html NOAA Supplemental Information in Description (NOAA legacy extension to FGDC)