![]() The user assume the entire risk associated with the use of this data. Check your conditions before you launch and only launch in conditions that you are familiar with and are certified to fly in. Regardless of what this program has forecasted, it is not intended to be a substitution for good common sense. The contents, including graphics and display format, are under copyright by Air Sports Net. The Raw Data used in this forecast was obtained from the National Weather Service's National Blend of Models and is not subject to copyright protection. ![]() Search for the Nearest Winds Aloft Forecast Station Of upper and lower values of current conditions amongst 59 locations Station: KDSM North: 41.53 West: -93.65 Timezone: Central Daylight Saving Time UTC: -5 Model: National Blend of Models - Aviation Format Tim Webber is a data visualization specialist for the Register.Aviation Weather Forecast at Des Moines, Iowa Follow winter safety tips and keep an eye on the Des Moines Register for more updates. This week's storm isn't currently forecast to cause wind chills quite that low, but it will still be dangerous. The Thursday and Friday before Christmas 1989 were similarly frigid, with the wind chill dipping below minus 46.Īnd 1968 left Iowans in the cold when Des Moines reported a wind chill of minus 43 on the last day of the year. Only once has the wind chill ever dropped lower. In 1983, Des Moines had a wind chill of minus 51.7 on Christmas Eve, part of a historic freeze that affected much of the country. Most of the city's most severe wind chills were recorded in January, but a late-December blizzard is not without precedent. That was in 2019, when a polar vortex plunged the state into bitter cold in January. Such a cold snap has been even rarer recently Des Moines has recorded a wind chill that low just once in the past 25 years. Since 1945, the year for which hourly weather data at the Des Moines International Airport is first available from the National Centers for Environmental Information, the wind chill has dipped below minus 40 a total of just 16 times. If the wind chill indeed drops below minus 40 in Des Moines, this weekend could join rarefied company in the city's weather history. Not the coldest Christmas in Des Moines - but close By Friday morning, virtually the entire state could see wind chills below minus 30. The weather service forecasts the wind chill to drop sooner - and drop lower - in the northern and western parts of the state. By Thursday morning, it's forecast to reach 25 below zero at Des Moines International Airport the most severe wind chill will likely occur late Thursday night into Friday morning, when it could hit minus 40. It also shows how quickly frostbite can occur.Īs of Tuesday afternoon, the National Weather Service was forecasting the wind chill to plummet starting late Wednesday evening. ![]() The National Weather Service has a chart that can be used for a quick estimation of wind chill based on current temperature and wind speed. More: Iowa braces for winter storm to bring dangerous blizzard conditions, snow, wind up to 50 mph That's what's expected to happen over the next few days, and it could lead to frostbite on exposed skin in less than 10 minutes. So when temperatures drop below zero and wind speeds reach more than 30 mph (gusting to 45), the wind chill plummets to potentially historic levels. As wind speed increases, wind chill decreases. The formula for wind chill appears complex, but at its core, it's intuitive: As temperature decreases, so does wind chill. That could be particularly dangerous to anyone caught outside. Instead, the main dangers will be the high winds - which could gust to nearly 50 mph and cause whiteouts - and the wind chill, which could sink below minus 40 in some parts of the state. Forecasters don't expect massive snow accumulation with this storm. Meteorologists in Iowa and across the surrounding region are warning of a winter storm over the next several days that could escalate into blizzard conditions. Watch Video: Winter driving tips: Staying safe on icy, snowy roads in Iowa ![]()
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