As the Houston Chronicle's SciGuy says:
If this were September we'd definitely need to be wary about Richard aiming toward Texas and strengthening back into a hurricane. But it's late October and there are a couple of reasons why we need not be concerned.
First is upper-level wind shear, which disrupts the circulation of hurricanes and can literally rip them apart. Wind shear values of less than 20 knots are generally favorable for storm intensification.
The following graphic shows average (climatology) and measured (current) wind shear values across the Gulf of Mexico basin, and values bottom out between mid-July and mid-September. By this time of year, however, shear values are much higher....MOREVia Wunderblog: