The Climate Prediction Center says there is now a 50/50 chance of a return to La Nina conditions this fall.
La Nina is an expansive area of cooler-than-normal water in the Pacific Ocean. This cooling alters weather patterns across the U.S., and almost always results in drier than normal conditions for Texas and most of the South. And, when we’re drier than normal, we tend to be hotter than normal.
This is very bad news for Texas, as the 2010-11 La Nina is the reason for our existing drought and heat wave. Think the drought and summer heat is bad now (the Mid-West and East had a heat wave, what we are having is a heat tsunami), if we have a 2011-12 La Nina, this drought could reach epic proportions by next summer.