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Wednesday in Des Moines, Iowa, a very strong low pressure system headed east out of the Rocky Mountains into the Des Moines area, producing heavy snow on the western side of the state, as shown in the tweet below. Six hours earlier, severe thunderstorms producing tornadoes occurred on the eastern side of the state.
Nebraska is today’s weather prize winner. pic.twitter.com/Cr5y5WNW4P
— Ian Livingston (@islivingston) November 11, 2015
The combination of the warm temperatures, high humidity, and perfect jet stream dynamics put Iowa right in the path for severe thunderstorms.
Radar rotational tracks match up well to the reported damage this evening in central Iowa. #iawx #iowaweather pic.twitter.com/PFT0R2jx1y
— NWS Des Moines (@NWSDesMoines) November 12, 2015
Tornado west of Yorktown, IA ~1230. Small debris kicked up crossing HWY 2. Video later. @NWSOmaha @USTornadoes pic.twitter.com/KoC4XRg5iX — Sam Dienst (@samdienst) November 11, 2015
Around 3:30 pm, the Des Moines International airport recorded a tornado, and then about 6 hours later, the same airport recorded snowfall! As that low pressure system shifted east, cold air began to pour into the region.
How’s this for a wild day? The Des Moines Airport observations recorded a tornado & then light snow around 6 hours apart Wednesday. #iawx — NWS Des Moines (@NWSDesMoines) November 12, 2015
Weather conditions reported by the Des Moines Airport yesterday. Rain, Storms, a tornado, and snow. Only in #iowa? pic.twitter.com/r2BaoonHIh
— Jason Sydejko KCCI (@JSydejkoKCCI) November 12, 2015
For more information on this story, check out the Capital Weather Gang article.