The gust speeds are a heck of a lot of wind. That can catch the side of your boat and spin you around like a top. 10-15 mph can be annoying, but can be managed. You might have to paddle on the lee side of the wind more strongly to counter-act it's attempt to turn you. How bad it is will depend upon the angle of the wind to the bow. If it's behind you, it helps push you along. It head-on, it'll slow you down, and you just have to concentrate on not letting the bow turn off the wind line to where it catches it, and it doesn't take much. The Brazos has a lot of meanders in that stretch that wander in all directions, so you'll be paddling in all possible directions relative to the wind. If you can get underneath the river bank on the up-wind side of the river, that helps the wind blow over top of you without being able to dip down onto the water and affect your boat. But no doubt, if that wind forecast comes true, there will be some areas where it will make things difficult. Sometimes I'll get tired of fighting the wind and just let the wind do what it wants, and drift with the current for forward progress, and if that happens to be sideways or backwards, so be it. When the wind slacks off, you can set things straight again. :-)