cused on a secondary tornado outbreak over south- The chapter thanked Steven Koch and wished him western Oklahoma on the same day as the Andover, the best in his meteorological studies.—Benjamin T. Kansas, storm in 1991. Koch described the role of a Hendrickson. lower-tropospheric bore in the initiation of deep con- Asheville vection. Some of the science issues included explain- ing how traditional triggering mechanisms such as The chapter held the first meeting in 1999-2000 at cold fronts may not be a sufficient forcing for some Red Oak Conference Room and Whitman Room of convective outbreaks, observing the effect of frontal Ramsey Library at the University of North Carolina lifting on the atmosphere, and what roles bore or grav- at Asheville (UNCA) on 9 September. Thirty-two ity currents have on convection along and ahead of people attended the meeting. The topic of the meet- cold fronts. ing was "WNC (Western North Carolina) Meteorol- He also discussed how these storms evolved and the ogy Community." Representatives from various various types of phenomenon that were observed. As agencies gave a briefing on what each agency does. the front moved east, storms started to develop just Alex Huang, chair of the Department of Atmospheric north of the cold front/dry line merger. Koch pointed Sciences, presented a short description of the Depart- out that the soundings in two locations only 30 miles ment of Atmospheric Sciences at UNCA; Lt. Colonel apart were dramatically different. Obviously, the David Zdenek gave a presentation on Air Force Com- sounding closest to the cold front/dry line point had a bat Climatology Center (AFCCC); Larry Lee, SOO larger negative energy area, and a bigger boost from from NWS-WF O at Greer, South Carolina, discussed the atmosphere would be necessary to kick off any type NWS operations at Greenville/Spartanburg Airport, of convection. South Carolina; and Ken Davidson, deputy director of The presence of two bores would be jus t enough to the National Climatic Data Center (NCDC) talked about operations and organizations at NCDC. do that. Convection did not form along the first bore, but the second would trigger the sufficient lift that was The 1999-2000 officers were also elected at the needed. The result was an observation of towering meeting. They are Ron Lowther, president; Kenneth cumulus above and behind the roll cloud. It was im- Walters and Scott Stephens, co-vice presidents; Susan portant to note that the storms only formed to the north Tarbell, treasurer; and Alex Huang, secretary. of the cold front/dry line merger. The future meetings will be held once every two Koch was able to detect the bore features by tem- months and additional meetings will be announced perature and humidity observations, radar, and pres- whenever available. The next meeting is scheduled to sure readings. The bore phenomenon aided the be in Laurel Forum at UNCA on 18 November. Tom development of these storms and one of the most dev- Karl, Director of National Climatic Data Center, will astating tornado outbreaks in history. These observa- presen t a presentation titled "Observed Climate tions showed how deep convection occurs without the Change and Variability: A Preview of the IPCC 2000 support of "triggering mechanisms." Assessment Panel."—AlexHuan . • ±4 1081 Jeff Baskin 1082 Kevin Coskren 1083 Ron Percivalle 1999 1084 Scott J. Stuccio 1999 * \ 1085 Chad M. Sandwell 1999 1086 Charles Ewing 1999 2632 Vol. 80, No. 12,, December 1999
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Dec 1, 1999
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