At 07:48 CST, a Cessna 182M and a Cessna 208B collided in mid-air near McAlester Regional Airport. The pilot of the 182 was killed but the pilot of the Caravan was not injured. The pilot of the 182 had elected to divert to McAlester after getting an in-flight weather report that called for icing along his route of flight. The Caravan was departing when the pilot heard the 182 pilot call Unicom for an airport advisory. The Caravan pilot gave him the winds and active runway and heard no further transmissions. The Caravan was departing the pattern on an extended downwind when he saw the 182 making what appeared to be a normal crosswind to downwind turn. The Caravan pilot rolled right and descended, and the 182 struck the underside of the Caravans left wing.