TEXAS AND OKLAHOMA SET ALL-TIME HEAT RECORDS IN THE SUMMER OF 2011
By Climatologist Cliff Harris
As we predicted would be the case in a recent
‘Gems’ article, the state of Texas endured the hottest June through August
in our nation’s recorded weather history for the entire country. The
National Weather Service said last week that the Lone Star State’s June
through August 2011 average (mean) temperature of 86.8 degrees beat out
Oklahoma’s long-standing 85.2 degrees mark set 77 years ago in 1934 during
the midst of the infamous Dust Bowl Days. Oklahoma set a monthly record for extreme heat this past July with an
average temperature of 89.1 degrees, the mid-point between the daily minimum
reading and the afternoon maximum temperature. Parts of Texas observed an all-time record of 68 days in-a-row with
triple-digit temperatures between late June and September 2. The previous
record was 43 consecutive afternoons at or above 100 degrees set 31 years
ago in the blistering summer of 1980. This year, only El Paso, Corpus
Christi and Brownsville did not set new record highs for the June through
August period in Texas. Texas and the surrounding areas of the heat-baked hard red winter wheat
regions of the southern Great Plains have not only been extremely hot in
2011, but these states have likewise, in many cases, seen the driest year on
record going back to at least 1895. The deadly combination of record heat and record drought has led to
widespread wildfires that have destroyed more than 5 million acres of
cropland, vegetation and trees in Oklahoma and Texas combined since last
November. During the first 8 days of September alone, more than 1,400 homes were
destroyed southeast of Austin, Texas by raging wildfires. Thousands of
people were forced to flee the wind-fanned unchecked blazes. At least two
people lost their lives. The recent U.S. Drought Monitor map released last week showed that the
entire state of Texas and at least 70 percent of Oklahoma are currently
locked in the "worst drought category." The searing heat and almost total lack of rainfall have really clobbered
agricultural and livestock operations from Kansas southward to the Texas
Gulf Coast. Total drought losses, as of September 12, exceeded $5.2 billion
and may eventually top $10 billion, especially if the extreme dryness hangs
on this fall delaying or even preventing the planting of our all-important
hard red winter wheat crop in the southern Great Plains, including Texas.
In Texas, the drought and scorching temperatures have destroyed cattle
grazing pastures and rangelands in the past 10 months. This has forced most
ranchers to severely cull their cattle herds. Those few ranchers that have
kept their stocks for the prospects of higher prices down the road are
paying skyrocketing prices for supplemental feed supplies and water hauled
sometimes from great distances. Producers of cotton in Texas have also lost most of their 2011 crop due
to the record dryness as well as the searing heat. Most cotton fields have
now been totally abandoned in the world’s largest contiguous growing patch
in north-central Texas near the city of Lubbock. Fish and wildlife reserves in Texas have likewise dried up in recent
weeks. More than 850 water suppliers have implemented mandatory restrictions
on water usage, especially in areas where private wells have run dry along
with the major aquifers in the state. On several occasions this torrid summer of 2011, Texas state power
officials have had to implement electric grid emergency measures in order to
conserve electricity and prevent those dreaded "rolling blackouts." A major
blackout occurred early this past week in Arizona, Southern California and
northern Mexico. The main reason for all the hot and dry weather this summer in Texas and
the surrounding southern Great Plains is not global warming, but actually
cooler than normal sea-surface temperatures associated with a slow to die
‘La Nina’ event in the waters of the eastern Pacific Ocean. The much-needed
warm and moist branches of the sub-tropical jet stream are still too weak to
produce any significant storm systems. Blue whales have been seen in large
numbers lately in the chilly waters off the coast of Southern California.
The water temperatures west of Los Angeles are the coolest since the 1970s
at this time of the year. While rains from Tropical Storm Lee did improve the water supply in early
September from Louisiana eastward to the Carolinas, it missed Texas and the
southern Great Plains. As of September 12, these regions, as well as much of
New Mexico and Arizona, remained locked in the destructive throes of an
exceptional drought of epic proportions. On Tuesday, September 13, Dallas observed its 70th afternoon
this blistering summer of 2011 with triple-digit readings. This topped the
previous mark of 69 such days in 1980. The day’s high on Tuesday of 107
degrees was the warmest reading Dallas has ever observed so late in the
summer season.