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Show TABLE 18 FREQUENCY OF .VARIOUS SEEDABILITY CONDITIONS BASED ON 700 MB TEMPERATURE CLIMATOLOGY Month Highly seedable from ground with mixed nucleation processes, -15C levels: 12,000 ft MSL Airborne seedable -15Clevel too high* Non-seedable due to 14, 000 ft MSL cloud-top temperatur s: -2 4C (too cold) Nov 18% 82% 0% Dec 38% 51 o/o 11 % Jan 41 % 41 o/o 18% Feb 37 o/o 41 % 22% Mar 42% 36% 22% Apr 15% 84% 1% *-l 5C level > 12, 000 ft MSL and also possible dis solution of seeding mate rial at T> -4C 322 |