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<br />However, at 8 p.m. two resupplied planes were ,both airborne <br />out of the Scott City Airport and were flying to assist seeding the <br />line. By then the WNW-ESE oriented line of storms had pushed south <br />and lay across eastern Wallace, central Logan, northeast Scott and <br />north-central Lane. The first plane began seeding at 8;10 p.m, in <br />southeast Wallace County; the second, north of the Scott City at <br />8:11 p.m. A third resupplied plane was airborne at 8:25 p.m. and <br />began working immediately along the line in eastern Scott and <br />western Lane counties. By 8;30 p,m. a separate, easterly-moving, <br />NE-SW oriented line of storms in eastern Colorado neared Hamilton <br />and Greeley counties; in addition, northeasterly moving severe <br />storm clusters in Seward, Meade and Clark counties also were moving <br />toward Ford and Gray counties. However, only one of those severe <br />storm clusters were to affect us in the extreme southeast part of <br />Ford County, near Bucklin, between 8:50 - 9;10 p.m. By 9 p.m. the <br />Colorado storms had linked up with the old line of seeded severe <br />storms'to its east formino_,anew NE-,SW. line of l>,=vere storms ,which <br />ran from NW Hamilton across Wichita into NW Sc~tt County. FromNW <br />Scott County, the line bent southeast across central Lane County. <br /> <br />The remaining two planes which ended their flights at 8;28 and <br />8:48 p.m. were airborne again at 9;08 and 9;35 p.m, respectively. <br />Both had landed to resupply, The Cloud top plane was airborne a <br />second time at 8:44 p.m. and started seeding along the line just <br />south of Dighton at 9:05 p.m. After 9 p.m. new severe storm growth <br />proceeded rapidly due to the considerable convergence between the <br />two merging lines of thunderstorms---one from Colorado, the other <br />being the seeded line of storms. One resupplied cloud base plane <br />began seeding in NW Hamilton at 9:19 p.m., another at 9:37 p.m. <br />near Lakin. Without airborne radar, the cloud top plane was put <br />into a potentially hazardous situation and released from seeding at <br />9;35 p.m. Cloud base seeding became concentrated across Hamilton, <br />Kearny and Finney counties before the entire system collapsed into <br />weaker, dissipating thunderstorms around 10:36 p.m. There were a <br />couple of areas of embedded severe storme which could not be seeded <br />after that time, one of which was in eastern Finney, near Kalvesta. <br />Seeding ended between 10;36 and 10:48 p.m. over Grant, Haskell and <br />Stevens counties. <br /> <br />It appears that hail daIllagethis date wasparticufarlysevere' <br />in Lane County and in Dighton. What we were dealing with here was <br />the moet severe type of storm, the supercell, Supercells have the <br />potential to produce the most violent tornadoes on the force-scale <br />used to rate tornadoes. Although some factors needed to produce the <br />high-force type tornadoes were absent this day, a funnel cloud was <br />seen in the Lane supercell, tornado warnings were issued and the <br />National Weather Service radar showed indications of a tornado 16 <br />milesNW of Leoti at 8;45 p.m. As a supercell, the Lane one was <br />very short-lived---both in time and distance---traversing only half <br />a county (about 30 miles) and lasting for about an hour. Supercells <br />most often have lifetimes of several hours and tracks easily more <br />than a hundred miles, often much more. Although it was heavily <br />seeded, not all parts of the storm could be adequately seeded nor <br />with the amounts of seeding agent needed. It appears likely that <br />