Community | May 10, 2011 | 3 comments

Drought descends on Texas and surrounding states

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JanforGore
While much of the nation focuses on a spring marked by historic floods and deadly tornadoes, Texas and parts of several surrounding states are suffering through a searing drought that has created desert-like conditions.

Some parts of the Lone Star State have not seen any significant precipitation since August. Bayous, cattle ponds and farm fields are drying up, and residents are living under constant threat of wildfires, which have already burned across thousands of square miles.

Parts of Texas are bone dry, with scarcely any moisture to be found in the top layers of soil. In some places, grass is so dry it crunches underfoot. The nation's leading cattle-producing state just endured its driest seven-month span on record, and some ranchers are culling their herds to avoid paying supplemental feed costs.

May is typically the wettest month in Texas, and farmers planting on non-irrigated acres are clinging to hope that relief arrives in the next few weeks.

"It doesn't look bright right at the moment, but I haven't given up yet," said cotton producer Rickey Bearden, who grows about two-thirds of his 9,000 acres without irrigation in West Texas. "We'll have to have some help from Mother's Nature."

That the drought is looming over the Southwest while floodwaters rise in the Midwest and South reflects a classic signature of the La Nina weather oscillation, a cooling of the central Pacific Ocean.

This year's La Nina is the sixth-strongest in records dating back to 1949.

"It's a shift of the jet stream, providing all that moisture and shifting it away from the south, so you've seen a lot of drought in Texas," Mike Halpert, deputy director of the federal government's Climate Prediction Center in Silver Spring, Md.

He said the pattern is "kind of on its last legs," and he expects a neutral condition for much of the summer.

Victor Murphy of the National Weather Service in Fort Worth said the location for the wet weather and the drought "is textbook."

"You tend to get real strong demarcation, and this year the magnitude of the extremes is exaggerated," Murphy said.

Texas' state climatologist, John Nielsen-Gammon, said the state's average rainfall from October through April was 5.82 inches. The previous seven-month record came at the end of March 1918, when the statewide average was 5.85 inches.

For comparison, many parts of the Sahara desert in north Africa receive less than 5 inches of rain a year.

Houston has received only 1.5 inches in the last three months.


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3 comments // Drought descends on Texas and surrounding states

  • JanforGore
  • JanforGore
  • JanforGore
    • 0
      JanforGore  
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    • http://climateprogress.org/2011/05/10/hell-and-high-water-texas-drought-wildfire...

      NOAA reports "April 2011: historic U.S. extremes in rains, floods, tornadoes, and fires"

      May 10, 2011

      NOAA’s National Climatic Data Center: “April was a month of historic climate extremes across much of the United States, including: record breaking precipitation that resulted in historic flooding; recurrent violent weather systems that broke records for tornado and severe weather outbreaks; and wildfire activity that scorched more than twice the area of any April this century.”

      The NCDC report for April reads like something out of a book titled … oh, I don’t know, Hell and High Water.

      Multiple scientific studies find that indeed the weather has become more extreme, as expected, and that it is extremely likely that humans are a contributing cause (see “Two seminal Nature papers join growing body of evidence that human emissions fuel extreme weather, flooding that harm humans and the environment” and links therein).

      Equally important, human-caused climate change is exacerbating the extreme events we would normally experience — by making deluges more intense (because of the extra water vapor in the atmosphere) and by making droughts hotter.

      “All extreme weather events are now subject to human influence,” said Dr. Peter Gleick, a climate & water scientist and president of the Pacific Institute, at a Capitol Hill briefing on Monday organized by the American Meteorological Society. “We are loading the dice and painting higher numbers on them.”

      As the reinsurer Munich Re put in in September, “The only plausible explanation for the rise in weather-related catastrophes is climate change”

      cont.

    • 1 year ago
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