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Water School

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What are drought classifications?

Every year since 1999, the US Drought Monitor has issued maps that include levels of dryness and drought severity.  These maps note different classes of drought severity by color, ranging from D0, abnormally dry, to D4, exceptionally dry.  These maps are used to help determine and assess the drought conditions within the Brazos River basin and when or if a drought contingency plan should be implemented. For more information on drought classification and severity, view the video below.&...
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Why do lake levels fluctuate?

Despite a common misconception, there are very few “constant level lakes,” and none operated by the Brazos River Authority.  A constant level lake is one that is artificially managed to remain at a specific level essentially by using another source of water to replenish losses due to evaporation, etc.Several factors can affect a lake’s level and only some are within human control. The chief factor that is not controllable is the impact of climate.  Evaporation is a constant, natural part of t...
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What is a drought?

What is a drought?

A drought is generally considered to be a prolonged period of less-than-normal precipitation such that the lack of water causes below average streamflow or lake levels, lowered soil moisture, crop damage, or economic losses.
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What is a drought contingency plan?

A drought contingency plan is a strategy or combination of strategies for monitoring the progression of a drought and preparing a response to potential water supply shortages resulting from severe droughts or other water supply emergencies. The Brazos River Authority's drought contingency plan may be viewed here.
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What is a drought of record?

A drought of record is the worst recorded drought since compilation of meteorologic and hydrologic data began.  In terms of severity and duration, the devastating drought of the 1950s is considered the drought of record for many areas in the Brazos River basin. This drought lasted a decade in many places and covered much of the nation, including all of Texas.  In 2008-2009, some parts of the state recorded a new drought of record.
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What is Xeriscape?

Xeriscaping is a form of landscaping using native plants and those adapted to survive in areas with periods of low precipitation. Using such techniques can be especially helpful in conserving water or in dealing with periods of drought.
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The information provided on this site is intended as background on water within the Brazos River basin. There should be no expectation that this information is all encompassing, complete or in any way examines every aspect of this very complex natural resource.

If you have questions about a post or would like additional information, please contact us or call 888-922-6272.

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