There is a reference to the Rapture in the Old Testament. This passage in Isaiah clearly shows that the Rapture will take place BEFORE the judgments begin:
First the resurrection:
"Your dead shall live; together with my dead body they shall arise. Awake and sing, you who dwell in dust; for your dew is like the dew of herbs, and the earth shall cast out the dead."
Then a hiding away:
"Come, my people, enter your chambers, and shut your doors behind you; hide yourself, as it were, for a little moment, until the indignation is past."
Then the judgments:
"For behold, the Lord comes out of His place to punish the inhabitants of the earth for their iniquity; the earth will also disclose her blood, and will no more cover her slain."
Isaiah 26:19-21