WMOD00043 - Laserfiche WebLink

Home Browse Search

expected severe storm growth did not materialize. stimulation was performed from 8:05 p.m. until 8:15 patrolling of the cloud system continued until 8:30 flights were terminated. Some p.m. p.m. rainfall Further when all JUNE 5th - OPERATIONAL DAY #18: One flight was initially scrambled to fly to the secondary target area at the Hitch Ranch in the Oklahoma Panhandle at 4:40 p.m.; a second at 5:10 p.m. An ENE-WSW line of severe storms and developing storms had formed in the Panhandle and movements were easterly to east-southeasterly. New propagation of storms were to the north, back toward the target area. Seeding for rain began at 5:38 p.m., however, by the time seeding started, the new growth storms being affected was close to Stevens County and would not affect the Hitch Ranch. At 5:52 p.m. both the first and second planes up were west of 'Stevens County and both began .seedh!'J fo:!:' hail suppression. ' Another large cluster of weak storms had moved near Hamilton County by 5:46 p.m., very similar to those seen in late afternoon the day before in the same area. All other planes were scrambled earlier. Seeding began near Coolidge at 6:12 p.m.; two others began seeding the same storm at 6:17 p.m. and a 4th at 6:22 p.m. As the Stevens County storm exited that county, the two planes seeding it diverted to the Hamilton-Grant-Kearny county area to assist the others on what had become an extensive line of storms north-to-south as it moved into and through Kearny and Grant counties. The cloud top plane began seeding in the Ulysses area at 7:04 p.m. With the passage of time, seeding proceeded along the easterly and southeasterly parts of the line into Finney and Grant counties and further east into eastern Finney, Haskell and Gray counties. Seeding was performed on the line system as it moved into ,and out of Ford County ending at 9:08 p.m. JUNE 6th - OPERATIONAL DAY #19: An early morning frontal passage produced an ENE-WSW line of storms moving into the extreme NE part of the target area near' Lane County. Initially, one plane was scrambled to check it out at 5:30 a.m. After examining the line and doing no seeding, it returned to its ,base. By 7~20 ,a,mc the line had pushed deeper to the southeast into' the target.' area, however, one storm began intensifying to become severe (hail- bearing) east of, Garden City and the line of cells extending southwest across Grant and Stanton counties. One plane was initially scrambled at 7:20 a.m., and three more at 7:40 a.m. and the 5th at 7:48 a.m. Seeding for hail was first performed north of Cimarron at 8:10 a.m. with a second joining in at 8:15 a.m. Two other cloud base planes went further south on the line at the same time. By 8:26 a.m. the cells being seeded for hail had decreased in intensi ty and updrafts, so both seeding aircraft reverted to rainfall stimulation. The cloud top plane began seeding at 8:36 a.m. at which time the line of storms along the frontal boundary lay from near Spearville to the southwest near Montezuma. The first