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Old 03-30-2010, 05:17 PM
BlueAngel BlueAngel is offline
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Join Date: May 2007
Posts: 7,932
Default Re: Contrails cannot form into clouds (proof!)

Originally Posted by JazzRoc View Post
"Unfortunately very little is known about the results of these experiments other than the fact that 9 storms were seeded."
That's about one "storm" per year? What size "storm" might that be? Weather? You joke with me.
Cloud-seeding is and has been regularly undertaken in the midwest US for sixty years now. It is used to prevent large storms from building (by causing them to precipitate sooner than they otherwise would). This limits the hailstone size to that not large enough to damage crops. It's BIG BUSINESS and also a jolly good thing to do.
But is it weather modification?
Of course it ******* isn't.
"Weather" is what you get on your TV. You know, THE BIG STUFF - cyclones, anticyclones, fronts, winds, jetstreams, temperatures, precipitations..

It is what YOU are doing that is misinformation. You are confabulating "cloud-seeding" with "weather modification" in an unscientific and antisocial manner right now.
That was one bit of information.

There's plenty more available regarding cloud-seeding.

Do a search and than re-calculate.

Your example of cloud-seeding in the midwest would be weather modification.

If cloud seeding changes the weather.

It modifies it.

Just the same as spewing water from the back of jets on a clear day can cause changes in the atmosphere and hence, modify the weather, by producing water vapour clouds.

Just look at the sky on a clear day when the jets are out spraying in criss-cross patterns.

Soon, the long white streaks fan out into thin, but wide, white clouds.

Take note as to what type of weather follows.


In the atmosphere, condensation produces clouds, fog and precipitation (usually only when facilitated by cloud condensation nuclei). The dew point of an air parcel is the temperature to which it must cool before water vapor in the air begins to condense.

Water vapor or water vapour (see spelling differences), also aqueous vapor, is the gas phase of water. Water vapor is one state of water within the hydrosphere. Water vapor can be produced from the evaporation of boiling liquid water or from the sublimation of ice. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation. Water vapour is lighter than air and triggers convection currents that can lead to clouds. Water vapor is a greenhouse gas along with other gases such as carbon dioxide and methane.

Last edited by BlueAngel : 03-30-2010 at 05:33 PM.
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