Sentences with phrase «upper level winds»

Arctic warming is altering the heat balance between the North Pole and the equator, which is what drives the strong current of upper level winds in the northern hemisphere commonly known as the jet stream.

Strong upper level winds provided support for supercell thunderstorms, which are thunderstorms that have persistent rotation associated with them, and can cause tornadoes and damaging large hail.

Climatology was aware of this decades ago as it became aware of changing variability, especially of mid-latitude weather, with changes in upper level winds.

The case for a connection between Arctic warming and summertime extreme weather events rests on the Arctic's crucial role as a pacesetter and shapemaker of the jet stream, the powerful ribbon of upper level winds that steer weather systems from west to east across the Northern Hemisphere.

Tornadoes require strong upper level winds, up to three miles above the ground, to contrast with slower currents near ground level in what's called wind shear.

WALLOPS ISLAND, Va — Concerns about high - upper level winds and cloud ceilings failed to materialize this -LSB-...]

The exact path, the upper level winds, the moisture content of the air: These all contribute to the strength of a cyclone.

The major climate system indices that are operationally used at ICPAC include evolution of monsoons, medium and upper level winds, Madden - Julian Oscillation (MJO), Quasi Biennial Oscillation (QBO), El Niño Southern Oscillation, Indian Ocean dipole (IOD), tropical cyclones, sea surface temperature gradients among many others that have been derived from general circulation.

Great circle routes take Asian bound aircraft across the general westerly flow of the upper level winds.