Unseasonably Warm

NCEP 4 km NAM Composite Reflectivity

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Unseasonably warm temperatures will continue to stick around in the state on Sunday, with highs in the 50’s once again. It is possible for a few 60 degree readings across the south. However, this unseasonably warm weather can not last forever, and sadly it will be coming to an end as our next system approaches the state by Sunday evening.

hires_ref_iowa_40Light drizzle will be possible throughout the day on Sunday, with some breaks in the clouds across southern Iowa by afternoon. These clouds have had an impact on our temperatures. If the sun was able to break out, our temperatures would be warming up even more. However, the fog and clouds will be with us once again on Sunday like they were today. Rain will be on the increase by Sunday evening from the southwest, and will continue to lift off to the northeast during the morning hours Monday. The rain will begin to enter southwest Iowa after midnight Sunday.

hires_ref_iowa_55The rain will continue into Monday, and as it does, colder air will be building into the state from the northwest. This will transition any rain across northwest Iowa over to a mix, and then eventually to snow. During this transition, a freezing rain may occur across northwest Iowa. Surface temperatures look to fall below freezing before temperatures aloft, and this may cause a light glazing of ice. Not expecting much in the way of ice accumulation, however, it will be enough to make things slick.

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Due to temperatures staying above freezing longer than originally expected, this has had an impact on snowfall totals. Not expecting much in the way of snowfall. Totals will remain on the light side, with only around an inch possible across northwest Iowa. If temperatures cool off faster during the day Monday, then it is possible to see more snow. At this time, temperatures look to stay warm enough during the bulk of this system, that the majority of the precipitation will fall as rain.

After this system pulls out, seasonal temperatures will finish out the week with our next chance of precipitation working into the state by Thursday. There are still many questions regarding this system, so we will continue to keep an eye on this, and will bring you all the very latest updates right here at www.iowachase.com.

Zach Sharpe

My name is Zach Sharpe. I am the president and forecaster for the Iowa Storm Chasing Network. You can find me on Twitter @Stormchaserzach and on Facebook at: https://www.facebook.com/stormchaserzach/

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