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National Weather Service Norman, Oklahoma: Difference between revisions
National Weather Service Norman, Oklahoma (view source)
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The forecast office has been responsible for advance warning dissemination and short-term forecasting during many severe weather and [[winter weather]] events that have happened within the County Warning Area, including notable [[tornado outbreak]]s and other significant weather events that the Norman office's area of responsibility has been the site of. | The forecast office has been responsible for advance warning dissemination and short-term forecasting during many severe weather and [[winter weather]] events that have happened within the County Warning Area, including notable [[tornado outbreak]]s and other significant weather events that the Norman office's area of responsibility has been the site of. | ||
During the first week of May 1999, [[1999 Oklahoma tornado outbreak|a major tornado outbreak]] affected portions of the [[Central United States|Central]] and [[Southeastern United States]], with the most severe activity impacting much of Oklahoma – especially locations within the Norman County Warning Area – on the late-afternoon and evening of May 3. [[1999 Bridge Creek–Moore tornado|The ninth tornado]] produced by the first [[supercell]] was the most significant, becoming the first tornado recorded to have produced damage costs surpassing [[United States dollar|US$]]1 billion.<ref>{{cite web|title=Unsettled Skies: Billion-Dollar Twister|url=http://www.atmo.arizona.edu/students/courselinks/spring08/atmo336s2/articles/Tornado_damage_SciAm_Sept2000.pdf|author=Robert Henson|periodical=[[Scientific American]]|publisher=Scientific American, Inc.|via=[[University of Arizona]]|date=2000|access-date=April 30, 2014}}</ref><ref name="NWS Outbreak Info May 1999">{{cite web|title=The Great Plains Tornado Outbreak of May 3-4, 1999|url=http://www.srh.noaa.gov/oun/?n=events-19990503|author=OUN Webmaster|website=National Weather Service Norman, Oklahoma|publisher=National Oceanic and Atmospheric Administration|date=April 28, 2014|access-date=April 30, 2014}}</ref> This tornado affected much of the southern portion of the [[Oklahoma City metropolitan area]], and as it progressed over [[Bridge Creek, Oklahoma|Bridge Creek]] in northeastern [[Grady County, Oklahoma|Grady County]], a mobile [[Doppler on Wheels]] radar recorded maximum wind speeds within the tornado at upper elevations at {{convert|301|±|20|mph|km/h|abbr=on}}, among the [[Tornado records#Highest winds observed in a tornado|highest winds known to have ever been observed]] on or near the Earth's surface.<ref>{{cite web|title=Doppler On Wheels |url=http://cswr.org/dow/DOW.htm |website=Center for Severe Weather Research |year=2014 |access-date=February 10, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20070205124033/http://www.cswr.org/dow/dow.htm |archive-date=February 5, 2007 }}</ref><ref name="May 3, 1999 Tornado Winds">{{cite web|title=Tornado Speeds May 3, 1999|url=http://www.sizes.com/natural/wind.htm|website=Sizes.com|publisher=Sizes, Inc.|year=2000|access-date=September 24, 2014}}</ref><ref name="USA Today on May 3 Winds">{{cite news|title=Doppler radar measures 318 mph wind in tornado|url=http://usatoday30.usatoday.com/weather/tornado/wtwur318.htm|author=Jack Williams|newspaper= | During the first week of May 1999, [[1999 Oklahoma tornado outbreak|a major tornado outbreak]] affected portions of the [[Central United States|Central]] and [[Southeastern United States]], with the most severe activity impacting much of Oklahoma – especially locations within the Norman County Warning Area – on the late-afternoon and evening of May 3. [[1999 Bridge Creek–Moore tornado|The ninth tornado]] produced by the first [[supercell]] was the most significant, becoming the first tornado recorded to have produced damage costs surpassing [[United States dollar|US$]]1 billion.<ref>{{cite web|title=Unsettled Skies: Billion-Dollar Twister|url=http://www.atmo.arizona.edu/students/courselinks/spring08/atmo336s2/articles/Tornado_damage_SciAm_Sept2000.pdf|author=Robert Henson|periodical=[[Scientific American]]|publisher=Scientific American, Inc.|via=[[University of Arizona]]|date=2000|access-date=April 30, 2014}}</ref><ref name="NWS Outbreak Info May 1999">{{cite web|title=The Great Plains Tornado Outbreak of May 3-4, 1999|url=http://www.srh.noaa.gov/oun/?n=events-19990503|author=OUN Webmaster|website=National Weather Service Norman, Oklahoma|publisher=National Oceanic and Atmospheric Administration|date=April 28, 2014|access-date=April 30, 2014}}</ref> This tornado affected much of the southern portion of the [[Oklahoma City metropolitan area]], and as it progressed over [[Bridge Creek, Oklahoma|Bridge Creek]] in northeastern [[Grady County, Oklahoma|Grady County]], a mobile [[Doppler on Wheels]] radar recorded maximum wind speeds within the tornado at upper elevations at {{convert|301|±|20|mph|km/h|abbr=on}}, among the [[Tornado records#Highest winds observed in a tornado|highest winds known to have ever been observed]] on or near the Earth's surface.<ref>{{cite web|title=Doppler On Wheels |url=http://cswr.org/dow/DOW.htm |website=Center for Severe Weather Research |year=2014 |access-date=February 10, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20070205124033/http://www.cswr.org/dow/dow.htm |archive-date=February 5, 2007 }}</ref><ref name="May 3, 1999 Tornado Winds">{{cite web|title=Tornado Speeds May 3, 1999|url=http://www.sizes.com/natural/wind.htm|website=Sizes.com|publisher=Sizes, Inc.|year=2000|access-date=September 24, 2014}}</ref><ref name="USA Today on May 3 Winds">{{cite news|title=Doppler radar measures 318 mph wind in tornado|url=http://usatoday30.usatoday.com/weather/tornado/wtwur318.htm|author=Jack Williams|newspaper=USA Today|publisher=[[Gannett Company]]|date=May 13, 1999|access-date=October 14, 2013}}</ref><ref name="BBC On May 3 Tornado Speeds">{{cite news|title=US tornado breaks records|url=http://news.bbc.co.uk/2/hi/science/nature/342507.stm|author=David Whitehouse|website=[[BBC News]]|publisher=[[BBC]]|date=May 13, 1999|access-date=October 14, 2013}}</ref> | ||
At 6:57 p.m. [[Central Time Zone|Central Time]] that evening, as the tornado tracked near [[Newcastle, Oklahoma|Newcastle]], the Norman office disseminated the first [[tornado emergency]] ever issued by the National Weather Service for [[Moore, Oklahoma|Moore]] and southern Oklahoma City; the enhanced warning statement – which in its initial version, was issued as a separate Severe Weather Statement, and is now incorporated within a newly issued or a Special Weather Statement on an existing tornado warning to denote a damaging tornado affecting densely populated areas – was drafted by staff meteorologist David Andra (who would later be appointed Meteorologist in Charge of the Norman office in 2012), in order to convey to the public and local media outlets the heightened danger and imminent impact of the destructive tornado.<ref>{{cite web|title=First Ever Tornado Emergency Message|url=http://www.alabamawx.com/?p=6715|author=Bill Murray|website=[[WBMA-LD]]|publisher=[[Allbritton Communications Company]]|date=May 2, 2008|access-date=April 30, 2014}}</ref><ref>{{cite web|title=South Oklahoma Metro Tornado Emergency|url=http://www.srh.noaa.gov/images/oun/wxevents/19990503/tornadoemergency.png|publisher=National Weather Service in Norman, Oklahoma|date=May 3, 1999|access-date=October 1, 2010}}</ref><ref>{{cite journal|title=May 3rd, 1999 from the NWS's Perspective|journal=The Southern Plains Cyclone|url=http://www.srh.noaa.gov/oun/newsletter/spring2004|publisher=National Weather Service|volume=2|issue=2|date=Spring 2004|access-date=February 15, 2008|archive-url=https://web.archive.org/web/20041108065124/http://www.srh.noaa.gov/oun/newsletter/spring2004/#19990503|archive-date=November 8, 2004}}</ref> | At 6:57 p.m. [[Central Time Zone|Central Time]] that evening, as the tornado tracked near [[Newcastle, Oklahoma|Newcastle]], the Norman office disseminated the first [[tornado emergency]] ever issued by the National Weather Service for [[Moore, Oklahoma|Moore]] and southern Oklahoma City; the enhanced warning statement – which in its initial version, was issued as a separate Severe Weather Statement, and is now incorporated within a newly issued or a Special Weather Statement on an existing tornado warning to denote a damaging tornado affecting densely populated areas – was drafted by staff meteorologist David Andra (who would later be appointed Meteorologist in Charge of the Norman office in 2012), in order to convey to the public and local media outlets the heightened danger and imminent impact of the destructive tornado.<ref>{{cite web|title=First Ever Tornado Emergency Message|url=http://www.alabamawx.com/?p=6715|author=Bill Murray|website=[[WBMA-LD]]|publisher=[[Allbritton Communications Company]]|date=May 2, 2008|access-date=April 30, 2014}}</ref><ref>{{cite web|title=South Oklahoma Metro Tornado Emergency|url=http://www.srh.noaa.gov/images/oun/wxevents/19990503/tornadoemergency.png|publisher=National Weather Service in Norman, Oklahoma|date=May 3, 1999|access-date=October 1, 2010}}</ref><ref>{{cite journal|title=May 3rd, 1999 from the NWS's Perspective|journal=The Southern Plains Cyclone|url=http://www.srh.noaa.gov/oun/newsletter/spring2004|publisher=National Weather Service|volume=2|issue=2|date=Spring 2004|access-date=February 15, 2008|archive-url=https://web.archive.org/web/20041108065124/http://www.srh.noaa.gov/oun/newsletter/spring2004/#19990503|archive-date=November 8, 2004}}</ref> | ||