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Old 04-16-2013, 04:58 PM
 
Location: Las Vegas, Nevada
12,686 posts, read 36,236,739 times
Reputation: 5516

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Quote:
Originally Posted by MAXIALE02 View Post
My question is what's with this dust? I never really paid attention before. Now I know why I get severe headaches on windy days. I'm staying inside until the dust settles, literally.
It's desert. You should have seen it back in the old days before the Kalifornians invaded our state, and people planted trees and grass, and paved over the rest. I remember times when INDOORS you couldn't see across a casino floor. With two sets of doors, we almost had to shut down production at our TV studio on Boulder Highway and DI a few times due to it being filled with dust. In our houses and apartments we would always have a inch of sand on the window sills. It blew right through block walls. Be glad it's not really that bad now.
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Old 04-16-2013, 05:03 PM
 
Location: Las Vegas, Nevada
12,686 posts, read 36,236,739 times
Reputation: 5516
Quote:
Originally Posted by kttam186290 View Post
The meteorological definition of a monsoon is a seasonal and marked change in both the humidity and wind patterns. So, if you were to go strictly by the meteorological definition, then the Southwest U.S. does indeed go through a monsoonal period

A haboob is simply a phenomenon closely associated with the monsoon.

Starting in May, thuderstorms began to build over the Pacific-facing mountains in Mexico, they start to "stockpile" tropical moisture there. By June, the High pressure system that was weak over the four corners (AZ, NM, UT, CO) has grown much stronger and it begans to pull (clockwise) that stockpiled moisture out of those mountains, the Gulf of California (Baja) and off the Pacific itself. When it does this, it creates an upper, mid and low-level wind current full of moisture and drives it almost straight up from Mexico toward the U.S. That moist wind current is the actual "monsoon", not the thunderstorms themselves. The thunderstorms are just the "symptom".

Now, when the ridge of high pressure builds way out or shifts slightly to the west, that moisture current will basically drive right up the Colorado River and that's when all of you in Las Vegas have your greatest chance of seeing those awesome thunderstorms!

The monsoonal pattern usually ends with the first strong cold front coming down from the Pacific Northwest (usually in late Sept. or Oct.) which knocks the high pressure center over the four corners region out of kilter. The last of the monsoon-associated storms that come in September and October are usually the most violent because of the clash of air masses.

Recall that September of last year brought lots of flooding to Las Vegas. October of 2010 brought some very violent thunderstorms that spawned tornadoes in the Flagstaff AZ area, which is very typical of the last part of the monsoon season.
Thanks for clearing that up, Al Roker.
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Old 04-16-2013, 05:12 PM
 
Location: Las Vegas, Nevada
12,686 posts, read 36,236,739 times
Reputation: 5516
Quote:
Originally Posted by dynimagelv View Post
I take exception to the terms MONSOON and HABOOB.

monsoons occur in Asia, HABOOBS occur in the middle east......

We have summer thunderstorms and dust storms.....
The haboobs blow hard here making big boobs out of mole hill boobs, and that's where you get the monsoon like weather which causes it to get real nippy at times, and that can be very nice in tight conditions.
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Old 04-16-2013, 05:18 PM
 
Location: Studio City, CA 91604
3,049 posts, read 4,512,972 times
Reputation: 5960
Quote:
Originally Posted by Buzz123 View Post
Thanks for clearing that up, Al Roker.
He seems like more of a TV talking head and less of an actual meteorologist, like some of the busty bimbos they have making weather reports here in Los Angeles who couldn't tell you the difference between a cumulus cloud and a stratus cloud.
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Old 04-16-2013, 05:26 PM
 
Location: Studio City, CA 91604
3,049 posts, read 4,512,972 times
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The worst dust storm in which I have ever found myself was on the I-15 between Mesquite and Las Vegas, heading toward Las Vegas. This was in August 1992 and I believe it was a haboob generated by a monsoonal thunderstorm out over Valley of Fire.
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Old 04-16-2013, 05:27 PM
 
1,376 posts, read 3,072,625 times
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Quote:
Originally Posted by kttam186290 View Post
ike some of the busty bimbos they have making weather reports here in Los Angeles who couldn't tell you the difference between a cumulus cloud and a stratus cloud.
Jillian Barberie made weather worth watching.
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Old 04-16-2013, 06:11 PM
 
Location: Studio City, CA 91604
3,049 posts, read 4,512,972 times
Reputation: 5960
Quote:
Originally Posted by aggrofish View Post
Jillian Barberie made weather worth watching.
My point exactly...and what were her actual credentials?
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Old 04-16-2013, 06:15 PM
 
53 posts, read 85,193 times
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Vegas last I checked a few years back is averagely the the windiest city for a major metropolitan area. Living there most of my wife, that would be true. I remember 3 years ago in Mountains Edge all the trees were bent of broke, despite being propped with wooden poles.
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Old 04-16-2013, 07:21 PM
 
Location: Studio City, CA 91604
3,049 posts, read 4,512,972 times
Reputation: 5960
Quote:
Originally Posted by krystsyde View Post
Vegas last I checked a few years back is averagely the the windiest city for a major metropolitan area. Living there most of my wife, that would be true. I remember 3 years ago in Mountains Edge all the trees were bent of broke, despite being propped with wooden poles.
The predominant flow of wind in the Las Vegas Valley for eight months of the year is from west to east. This pattern only breaks in the summer months and very early in fall (Late Sept./early Oct) because of the Four Corners high pressure ridge that influences the monsoon season in Summer.

The west-to-east wind flow in Las Vegas for eight months of the year is accelerated by the fact that, geographically, you are just east of the Sierra Nevada mountain range in California. So when the wind current comes off of the Pacific Ocean and hits the Sierra Nevada range, it is forced up and then it heads back down on the dry eastern side of the Sierras. As it heads back down, it accelerates and gains speed and channels directly into the Las Vegas Valley. Mt. Charleston acts like somewhat of a barrier, so Las Vegas actually doesn't get the worst of the wind. If you want to know who does...talk to the people in Beatty, Pahrump or Indian Springs!
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