In AustinOver 80% of Texas is now listed as experiencing an "exceptional drought" - darkest red (US Drought Monitor)Can you spot the outlier?From John Nielsen-Gammon, the Texas State Climatologist and a Professor of Atmospheric Sciences at Texas A&M University:
"In a recent post, I noted that over pretty much all time scales from three to twelve months, the current lack of rainfall in Texas is worse than ever recorded, with records going back to 1895. Now, there are three ways to get the worst one-year statewide drought. You can have fairly low rainfall totals affecting a larger fraction of the state than ever before, you can have a portion of the state affected by really severe rainfall deficits, or you can have some combination of the two. For the 2011 drought, which is it?
To find out, I asked my
slave graduate student Brent McRoberts to compute the rainfall totals for the 6-12 month periods ending in July over the past 100 years and rank them. I chose 100 years because that includes all the major droughts since 1895 and doesn’t require too much interpolation between the very sparse observing network of yesteryear. What he produced gives us a new insight into the nature of this drought and tells us where it’s truly unprecedented in anyone’s lifetime."
http://blog.chron.com/climateabyss/2011/08/texas-drought-where-is-it-worst/