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<br />showing small hail in them on radar, they all began to exhibit such <br />weak, dissipating tendencies that by 4:18 p.m. flights began Peing <br />terminated. Before all planes landed, two were diverted toward a <br />new line storms in northern Kearny and Hamilton counties as well as <br />a new cluster of storms in Wallace County northwest of Sharon <br />Springs. Beeding began on the Wallace storms at 5:50 p.m. and was <br />followed into Greeley county until seeding ended on it at 6:15 p.m. <br /> <br />The cloud top aircraft did some seeding on the portion of the <br />line of cells over Hamilton and Kearny counties beginning at 5:14 <br />p.m., but had to return for fuel at 6:48 p.m. The other three cloud <br />base aircraft were scrambled between 5:36 p.m. to 5:52 p.m. and <br />went to the strongest atorm within the line which layover northern <br />Kearny and southern Wichita counties, centerd over Lydia. As the <br />storm tracked east, it organized into a N~S line from north-central <br />Scott County to Garden City with aeeding continuing into southern <br />Scott and northern Finney where storm severity was highest. Storm <br />inten&itie'c' :!.c'.'!ered"significantly after the line had moved well <br />into Lane County. Then, at 7:56 p.m. seeding was discontinued and <br />all planes sent back to their bases. The cloud top aircraft had <br />gotten airborne again at 7:45 p.m. and provided some precautionary <br />seeding in Lane County between 8:15 and 8:25 p.m. Total flight <br />time for the 9 flights was 21.3 hours. <br /> <br />JULY 2nd - OPERATIONAL DAY i25: Severe storms developed first in <br />eastern Colorado in late afternoon. Storm movements were to the NE <br />to NNE, however, it was probably the case that the characteristic <br />bow~shaped line of storms, which began forming over western Stanton <br />County, was caused by a gust front pushing to the east out of the <br />Colorado storms. All planes were scrambled at 7:17 p.m. seeding <br />first began in BouthwesternHamilton County at 7:32 p.m. and along <br />the leading edge of the line in northwestern Stanton at 7:43 p.m. <br />The cloud top plane worked on the line with the two cloud base <br />aicraft as it moved northeasterly into Kearny County, havinq an <br />extension laying southward across Grant. <br /> <br />A separate, detached gtorm soon developed in northwest <br />Hamilton County and was seeded by one plane beginning at 7:50 p.m., <br />having been diverted to it earlier. A second plane joined at 8:16 <br />p.m. .Sseo.ing prJ?c;;)~Qg.ed acroSs Greeley.1nto southlJi!lstwallace and <br />.northwest'W1chita count1es~ At 9:02 p.m. the two pl~nea lost their <br />cloud updrafts and went to assist on the line of storms seeded by <br />the ether three planes in Kearny County. <br /> <br />Due to thunderstorms with heavy rainshowers at the Lakin radar <br />site around 9:15 p.m., attenuation became a significant problem for <br />~iewlng important cloud intensity changes and movements for about <br />an hour. In any event, all aircraft oontinued seeding in a north- <br />south manner, in front of the easterly moving north-south oriented <br />line of storms, as it moved through the target area counties of <br />Scott, Finney, Grant, Haskell, Gray and Lane. The cloUd top plane <br />ended seeding at 10: 07 p.m. ---all other aircraft ended between <br />10:50 and 10:56 p.m. Total flight time was 19.0 hours. <br /> <br /> <br />f::::ff.1~~ <br /> <br /> <br />Program Manager, <br />WastArn XanR~~ ~A~~n~T M~~~~;~~~~~~ <br />