www.lcra.org texas drought update twca mid-year conference june 18, 2009 bob rose, meteorologist,...

www.lcra.org

Texas Drought UpdateTexas Drought Update

TWCA Mid-Year ConferenceJune 18, 2009

Bob Rose,Meteorologist, Lower Colorado River

Authority

TWCA Mid-Year ConferenceJune 18, 2009

Bob Rose,Meteorologist, Lower Colorado River

Authority

www.lcra.orgDrought Progression 2008-2009Drought Progression 2008-2009

www.lcra.org2008 Rainfall2008 Rainfall

www.lcra.org2008 Rainfall, Departure from Normal2008 Rainfall, Departure from Normal

More than20 inchesbelow normal

www.lcra.org2008 Rainfall Statistics2008 Rainfall Statistics

• For the state as a whole, 2008 ranked 31st driest out of 113 years with 24.60 in. (normal is 27.92).

• December 2008 ranked 4th driest statewide out of 113 years with 0.45 in. Normal is 1.90

• In comparison, 2007 was the 6th wettest year on record.

www.lcra.org

South Central Texas Drought Statistics, 2008

South Central Texas Drought Statistics, 2008

• Austin-Mabry 16.07 inches, 17.58 inches below normal. 4th driest dating back to 1856. driest since 1956.

• San Antonio 13.76 inches, -19.16 inches, 3rd driest dating back to 1871. driest since 1954

• Victoria 21.71 inches, -18.39 inches, 5th driest on record. (2007--71.76 inches, 2nd wettest year on record).

www.lcra.orgMarch Drought MonitorMarch Drought Monitor

www.lcra.org2009 Rainfall2009 Rainfall

www.lcra.orgRainfall Past 60 DaysRainfall Past 60 Days

10 to 15 inches

www.lcra.org2009 Rainfall, Departure from Normal2009 Rainfall, Departure from Normal

8 to 12 inches below

www.lcra.orgSoil Moisture AnomalySoil Moisture Anomaly

www.lcra.orgLatest Drought MonitorLatest Drought Monitor

www.lcra.orgLatest National Drought MonitorLatest National Drought Monitor

www.lcra.orgLa Niña to El NiñoLa Niña to El Niño

June 15th

www.lcra.orgA Growing Trend Toward El Niño A Growing Trend Toward El Niño

www.lcra.org

Typical Rainfall Associated with La NinaTypical Rainfall Associated with La Nina

www.lcra.orgCurrent “Unusual” Jet StreamCurrent “Unusual” Jet Stream