ATOC 185 Lecture Notes - Lecture 8: Tornado Alley, Fujita Scale, Rail Delivery Group
1 Dec 2017
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November 12, 2105: recall that when rising air becomes saturated, latent heat is released, and slows the rate of cooling. This is called the moist adiabatic lapse rate, and it is not a constant value. If relative humidity is under 100%, we lift it along the dry adiabatic lapse rate, colder than the environment and will go back to its original position so it is stable (unsaturated) If relative humidity is 100% we have instability (saturated: soundings, this sounding is stable. The lapse rate is 0 so it(cid:495)s stable. No sense: any mechanism which lifts a parcel of air up to the point where it, lifting mechanisms becomes buoyant can trigger a thunderstorm, triggering in the form of forced lift occurs along the front range of the. Rocky mountains and along the sea-breeze convergence zone in. Florida: stages of a thunderstorm life cycle, supercell thunderstorms downdrafts and system self destructs, 1. Cumulus (warm, buoyant plume with updrafts: 2.
