Forecasters are warning that “life-threatening” blizzard conditions are heading toward Iowa this weekend ahead of the caucuses on Monday. A blizzard warning has been issued over much of Iowa for Friday into Saturday, with several areas under a winter storm warning, as well, the National Weather Service (NWS) advised. NWS predicts that 3-5 inches of snow could fall in Des Moines, and some areas could see up to 8 inches over the next three days. Winds are expected to increase Friday and create life-threatening blizzard conditions overnight into Saturday. Temperatures are expected to be dangerously low throughout the weekend and into early next week, with the wind chill down to minus 45 degrees, NWS said. The high temperature Sunday in Des Moines is predicted to be minus 5, and on Monday, it is expected to be minus 3 degrees, with temperatures dipping into the negative double digits overnight. The storm is shaking up the GOP primary as candidates attempt to make a final pitch to voters in the Hawkeye State.