ATM 103 Lecture Notes - Lecture 14: Saharan Air Layer, 1900 Galveston Hurricane, Hurricane Wilma
6 Mar 2017
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Document Summary
In some of the strongest hurricanes, the convection in the wall of the eye is replaced by an outer ring of storms. Can happen multiple times during the lifecycle of a storm. Hurricane wilma (2005: strongest atlantic basin hurricane ever recorded, 882 mb central pressure, 185 mph 1-minute sustained winds. Deep well-mixed, dry adiabatic layer over cool, moist low-level air. Temperature inversion at the base of the sal. When tropical waves, tropical disturbances, or pre-existing tropical cyclones (tcs) ingest the. Sal, it"s dry air, temperature inversion, and strong vertical wind shear (associated with the midlevel easterly jet) can inhibit their ability to strengthen. Intensity: 145 mph and 936 mbar - 15 foot storm surge. In 1915 there was another storm with a 12 ft storm surge - only 53 people died. Remains the deadliest tropical cyclone ever recorded, with a death toll of up to 500,000 people!
