 Morning edition coming up tomorrow morning between 4 and 9 o'clock here on KUNR. There is an excessive heat warning in effect at least through 10 a.m. on Wednesday. Hot daytime temperatures near 105 degrees and limited overnight cooling will result in a prolonged period of major heat risk and health impacts. Drink plenty of fluids. Stay in an air-conditioned room if possible. Stay out of the sun. Check up on relatives and neighbors. At 640.