A jet stream is a narrow variable band of very strong predominantly westerly air currents encircling the globe several miles above the earth.
.................... thats Hard...!!!?
A steep pressure gradient ( where isobars<span> are </span>close together<span>) </span>indicate<span> higher winds, a less steep pressure gradient (where </span>isobars<span> are farther apart) </span>indicate<span> slower air movement. ... Be able to interpret a </span>weather map<span> that shows the distribution of air pressure and wind flags.</span>
