It's going to look like a snow globe out there with snow blowing everywhere, with blizzard or near-blizzard conditions." "We're talking whiteout conditions" with visibility cut to a couple hundred feet, Curtis said. Northern and northwest Iowa's wind chill will fall to minus 45 degrees. Wind chill is expected to drive "feel-like" temperatures as low as minus 40 degrees in most parts of the state, Curtis said. More: Wind chills in Iowa could drop below minus 40. Iowa is expected to get 4 to 7 inches of snow, with eastern Iowa seeing the heaviest accumulation. Snowfall in central Iowa will begin around midday Wednesday, with winds gusting up to almost 50 mph Thursday and Friday, said Allan Curtis, a National Weather Service meteorologist in Johnston. Just across the border in south central Minnesota, it issued a full-fledged blizzard warning. The National Weather Service on Tuesday afternoon issued a winter storm warning for most of Iowa and a wind chill warning for northwest Iowa. Iowa is bracing for one of the worst snowstorms to hit the state in a decade, with residents emptying grocery shelves, shopping for shovels and generators, and city, county and state snowplow crews prepping for a five-day, road-clearing marathon. Wind chill ( ☏) = 35.75 + 35.75V 0.16 + 0.4275TV 0.Watch Video: What to do if your car doesn't start in the coldįor the latest on the developing winter storm, see the Des Moines Register's live weather blog. Each person spent four 90-minute sessions in the tunnel, where the wind and temperatures were cranked up and down. Thermal transducers were stuck to their faces to measure heat flow from the cheeks, forehead, nose and chin, while walking three miles an hour on a treadmill. The current index, implemented in 2001, is based on heat loss from exposed skin, and was tested (safely) on humans.ĭuring the trial, 12 volunteers, male and female, were placed in a chilled wind tunnel, according to the National Weather Service. As a result, it underestimated the time of freezing and overestimate the chilling effect of the wind. They measured the cooling rate of water, which freezes faster than flesh. Warning signs include shivering, memory loss, disorientation, incoherence, slurred speech and drowsiness.Įarly wind chill research was conducted in 1945 by Antarctic explorers. Hypothermia is an abnormally low body temperature (below 95°). Medical attention is needed immediately, and those areas should be SLOWLY re-warmed.
Some symptoms include loss of feeling or a white or pale appearance. The most common and susceptible parts are extremities such as fingers, toes and ears. Frostbite is a condition in which the body tissue actually freezes.
Those exposed to dangerous wind chills run the risk of frostbite and hypothermia. Please make plans to check on your elderly neighbors, and those without a source of heating this coming weekend.
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