– Moist air mass originating over the ocean.

– Mesoscale Convective System. A large cluster of thunderstorms and rain. Can be a squall line, multi-cells or a mesoscale convective complex.

Precipitation of 0.01″ or more.

-The rotating updraft in a supercell thunderstorm

– The study of the atmosphere and atmospheric phenomena.

– Meteorologist In Charge.

– Small downbursts, less than 2.5 miles in outflow diameter, with peak winds lasting 2 to 5 minutes. They may induce dangerous wind and downflow wind shears which can affect aircraft performance.

– a local set of atmospheric conditions that differ from those in the surrounding areas, often slightly but sometimes substantially.