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