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Why the record-breaking temperatures in Texas are being caused, in part, by the record drought

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BillyJack Donating Member (653 posts) Send PM | Profile | Ignore Mon Jun-27-11 03:33 PM
Original message
Why the record-breaking temperatures in Texas are being caused, in part, by the record drought
I didn't understand how drought effects temperature until I read this short article. Thought it was interesting and would share. (My apologies to the DU'ers who already "know this stuff" and will find this uninteresting or "duh"....not all of us are as 'scientifical' as many of you are ;-) )

<snip>
Hottest day on record in Texas Panhandle; fire threatens Los Alamos

The record-breaking temperatures in Texas are being caused, in part, by the record drought. Under normal conditions, the sun's heat expends part of its energy evaporating water from the soil and from vegetation. This energy is stored as "latent heat" in the water evaporated, and is not available to heat the air up. However, when a severe drought dries up the soil and kills the vegetation, there is much more heat available to go directly into heating up the air, since there is little moisture to evaporate. The increased temperatures help to strengthen the high pressure system dominating the drought region, making it even more difficult for rain-bearing low pressure systems to bring drought-busting rains. This positive feedback effect is a key reason why we expect more intense droughts and heat waves in a warmer climate.

Wunderground's weather historian Christopher C. Burt has many more details on the great Texas drought of 2011 in his latest post, updated Sunday night. He reports that Pecos, Texas has had no precipitation since September 23, 2010--one of the longest rain-free periods for a U.S. city in recorded history, outside of the desert regions of Arizona and California.
</snip>

Entire Article:
http://www.wunderground.com/blog/JeffMasters/comment.ht...
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LynneSin Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-27-11 03:34 PM
Response to Original message
1. I thought governor Goodhair Perry had a day of prayer to bring the rain about
how'd that work out?
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BillyJack Donating Member (653 posts) Send PM | Profile | Ignore Mon Jun-27-11 03:37 PM
Response to Reply #1
2. Apparently he only added more "hot air" to the situation, thus making it worse n/t
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WolverineDG Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-27-11 03:40 PM
Response to Reply #1
3. It rained
not a lot where I live, but it still rained.

dg
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TxVietVet Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-27-11 03:47 PM
Response to Reply #1
4. Probably got the wrong god or something wasn't right with the prayer or.....
his hair. Pretty Hair Perry f*cked up again. How's that profit thing working for you, Pretty Hair? I meant to say "prophet", like "prophet of doom".

:evilgrin:
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