The "ways" aren't exactly mysterious. You live in the great plains, you're going to get floods and tornadoes.
Sure - be serious! But since we're here, my thoughts on exactly why places like yours tend to the religious.
A drive through the countryside in my area will show a lot of farms with presumably fundamentalist religious owners, if the signs are to be believe. Plenty of "The wages of sin is death" friendly reminders to see.
Giving some thought to the matter, who more likely to be really religious. Religion is the desire to influence events that you have no influence over. A Farmer has to have some sort of trust that the rains will come, the temperatures will moderate, and the crops will grow. Economic and some times actual life critical.
So they pray a lot, and in earlier times, when weather patterns were not known, it was not outside the realm of reason that abundant years were signs of Godly approval, and bad years were signs of offense.
But then you have the odd happening of the "faithful" being hammered by nature like this. Then it becomes silly season. The leaders scurry to find blame and attach it to the usual sources (Katrina, The mess in New Jersey, and Haiti come to mind).
So we have the elite, gay loving people of the northeast getting pummeled by a hurricane as proof of gawd's wrath against homosexuals, and it's accepted by the devout.
And there will be some insane excuses regarding these floods in Texas and Oklahoma that might be completely opposite in nature, but likewise gobbled up as proof of gawd's something something.
But let's take Haiti. One of gawd's mouthpieces, Pat Robertson gave the massive earthquake in Haiti as divine retribution http://www.cnn.com/2010/US/01/...
Now the fact that haiti sits on a shallow plate of geology that has been there long before there were those Hatians that presumably made a pact with the devil, apparently has nothing to do with it.
I wonder what Pat's comments on the present day mess in Texas and Oklahoma are? It will probably be along the lines of having to purge the sinners among the faithful, or if not fully prepared, back to the old "Mysterious ways" catchall.
So back to Oklahoma and Texas. They don't want to believe they have no control over these disasters, they see the destruction, and since humans have this strong approval blame thing going on, they feel they need to do something. Religion to the rescue.
Whereas the smart money says move elsewhere.