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<br />the west toward Stanton County. One of the other two cloud base <br />planes seeded in the Stevens County area from 2:23'p.m. onward, <br />making it four planes in all. The last cloud base plane was moved <br />to three areas of separate storm development before settling in one <br />workable area just south of Ford County, near Minneola; seeding <br />there was from 3:20 to 3:30 p,m, before storms collapsed. As time <br />passed, seeding moved into the southwestern and southern part of <br />Stanton County as well as over southern Haskell County. At 3:42 <br />p.m. one aircraft landed to refuel and resupply, made some quick <br />generator adjustments and was airborne again by 4:25 p.m. <br /> <br />What happened during afternoon operations appeared to be that <br />the frontal boundary was moving northward through the southern part <br />of the target area and new storms built over it. At 4 p.m. the <br />cloud top plane had to land for fuel. When another cloud base plane <br />had to, land at 4:35 p.m~, the rema.ining planes concentrated seeding <br />in two areas,' each wi thtwo planes: (1) near, Johrlson, and (:2) near, <br />Ulysses. A separate, isolated storm near Bucklin was being checked <br />out by the fifth plane. Three of the cloud base planes had to land <br />for supplies or fuel soon afterward at 4:42, 4:43 and 4:48 p.m., <br />respectively. Overall ,storm intensities began waning about the <br />same time that planes went in for landing. After seeding ended at <br />4:48p.m., no seeding was performed by any Of the planes on their <br />second flights, Three planes were airborne a second time. The cloud <br />top plane was not launched a second time. <br /> <br />JULY 5th - OPERATIONAL DAY #37: Intense surface heating on high <br />ground in' east:ern Colorado, sufficient low-level moisture and <br />cooling aloft contributed to numerous afternoon storms building. <br />With time, some organized into lines. Individually, storms tracked <br />east-sout:heast t:o the Kansas border about two hours before sunset. <br /> <br />The first four cloud base planes were scrambled at 6:44 p.m. <br />to a hail-bearing storm was in eastern Colorado about 20 miles NNW <br />of Towner. The last cloud base plane was kept on standby in Stanton <br />County to await Colorado storms either developing, or moving, from <br />there into Stanton County. The cloud top plane also was on standby. <br /> <br />As the storm, NNW of,'!'owner wa,5'being'p.xamined;a separate new <br />storm grew above a gust front in northwest Greeley County which had <br />been thrust to the southeast earlier from the area of storms being <br />examined. The cloud top plane was scrambled at 7:28 p.m, Cloud base <br />seeding for hail began on the Greeley storm at 7:30 p.m. Three more <br />planes joined in seeding at 7:35,7:42 and 7:43 p.m., respectively, <br />as the storm grew into a large cluster spreading into southwestern <br />Wallace County. At 7:51 p.m. another storm center, distinct from, <br />but near the Greeley one, appeared to be attenuated (not well seen) <br />by radar and may have been hail-bearing about 10 miles southwest: of <br />Sharon Springs where it had formed. Two planes were sent to it at <br />8:02 p.m. after radar intensities and updrafts on the Greeley storm <br />cells had become low. The other two planes seeding the same storms <br />moved to Tribune but found nothing significant there. Subsequently, <br />they went on to another new area of storm growth near the Hamilton- <br />Greeley County line and found more vigorous updrafts; seeding began <br />