Www.lcra.org Texas Drought Update TWCA Mid-Year Conference June 18, 2009 Bob Rose, Meteorologist, Lower Colorado River Authority TWCA Mid-Year Conference.

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Presentation transcript:

Texas Drought Update TWCA Mid-Year Conference June 18, 2009 Bob Rose, Meteorologist, Lower Colorado River Authority TWCA Mid-Year Conference June 18, 2009 Bob Rose, Meteorologist, Lower Colorado River Authority

Drought Progression

Rainfall

Rainfall, Departure from Normal More than 20 inches below normal

Rainfall Statistics For the state as a whole, 2008 ranked 31 st driest out of 113 years with in. (normal is 27.92). December 2008 ranked 4 th driest statewide out of 113 years with 0.45 in. Normal is 1.90 In comparison, 2007 was the 6 th wettest year on record.

South Central Texas Drought Statistics, 2008 Austin-Mabry inches, inches below normal. 4 th driest dating back to driest since San Antonio inches, inches, 3 rd driest dating back to driest since 1954 Victoria inches, inches, 5 th driest on record. ( inches, 2 nd wettest year on record).

March Drought Monitor

Rainfall

Rainfall Past 60 Days 10 to 15 inches

Rainfall, Departure from Normal 8 to 12 inches below

Soil Moisture Anomaly

Latest Drought Monitor

Latest National Drought Monitor

La Niña to El Niño June 15th

A Growing Trend Toward El Niño

Typical Rainfall Associated with La Nina

Current “Unusual” Jet Stream