Geography 1000For Quiz #3(part 4 of 4)

1962 Oregon storm – wind

speeds more than 130 mph.

Some say:

“The jet stream comes down to the earth some

days.”

Similar storm in Utah 1994 –

winds greater than 105 mph.

Not only are warm waters less dense (expanded) but they contain much more energy to keep storms going.

So, warm water is higher elevation and storm conditions include low air pressure, allowing sea water to rise even more.

Notice how the storm lost intensity when it passed over dry land (Florida).

Cyclonic (counter-clockwise winds.

Red/Yellow radar echoes indicate

heavier rain.

This storm is hundreds of miles

wide.

Compare to Utah thunderstorms that may be less than two

miles wide.

Figure 9.31Notice that even this coastal hurricane tends to go SW NE.

Notice also that the ‘forecast’ path broadens with lead time.

This storm died out when it crossed over land and lost its ocean supply of heat and moisture.

Figure 9.E“Storm Chaser” to gather

wind, humidity, temperature and other data.

Computer projection of potential urban storm flooding

Notice how only a few feet of water can cause millions of dollars in damge - - wet drywall and ruined cars.

The kind of coastal construction now being required in New York and New Jersey after ‘Super-Storm Sandy’

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Rising air in a storm will cause down-drafts somewhere else. In 1975, an airliner was caught in a “micro-burst” downdraft, killing 75 people in

Salt Lake City.