There is a long history of God retaliating against nations which act to harm Israel.
I will bless those who bless you, and whoever curses you I will curse; and all peoples on earth will be blessed through you." (Genesis 12:3)
“Behold, all those who are angered at you will be shamed and dishonored; hose who contend with you will be as nothing and will perish." (Isaiah 41:11)
....I will contend with those who contend with you. (Isaiah 49:25)
If Barack Obama would stop participating in the dividing of Israel, the violent weather around the nation would stop. But we know that's not going to happen. We know that Israel will be divided and what does God do about it?
For behold, in those days and at that time, when I restore the fortunes of Judah and Jerusalem,
I will gather all the nations and bring them down to the valley of Jehoshaphat. Then I will enter into judgment with them there on behalf of My people and My inheritance, Israel, whom they have scattered among the nations; and they have divided up My land. (Joel 3:1,2)
Just like America is under the curse of God for our elected government's treatment of Israel, we will also be among the nations who are directly judged by God for our participation in dividing Israel.
God means what He says and He does what He says He will do.
Why should Christian relief organizations like Samaritan’s Purse give any assistance to people who are suffering in these tornados if they are a result of God’s judgment?