Warm Today, Snow Tomorrow

Iowa Christmas HighsTo start off, a Merry Christmas to all and God bless. A large majority of the state must have been nice this year as Santa not only brought gifts, but he brought the sun and warmer weather with him. Today highs climbed into the upper 40’s to near 50 across southern Iowa. To the north, temperatures were cooler but still seasonal. However, changes are on their way by tomorrow.

Iowa High Temperatures 12/26The winds will be changing direction by early Friday due to a cold front that will be moving across the state. Winds today were out of the south, but by early Friday morning, winds will be switching out of the north. This will usher in colder air for most of the state by Friday afternoon. Moisture will also be on the increase which will provide a chance for light rain and eventually light snow across the state.

WRF Iowa Simulated ForecastLight rain/drizzle will be moving in from the south late morning Friday. Temperatures will be above freezing that any precipitation will be in the liquid form.

hires_ref_iowa_34It isn’t until Friday evening when precipitation becomes more widespread. By 9pm, snow will be likely across the northwest corner of the state. Precipitation across southern Iowa will still be in the liquid form as temperatures will still be above freezing.

hires_ref_iowa_37As the night continues, temperatures will continue to cool, so rain will begin to transition over to snow further to the southeast.

hires_snow_acc_iowa_20The greatest snowfall accumulations will be across northwest Iowa. This is where 2″ to 3″ of snow will be likely. Further to the southeast into central Iowa, less than an inch will be possible. Into southeast Iowa, little to no snowfall accumulations as the majority of the precipitation will be across northwest Iowa and most of it will fall as rain.

hires_t_precip_iowa_16Precipitation totals will range from a tenth of an inch to as much as 0.4″ across the state. After this system pulls out of the state by early Saturday morning, temperatures will not be warming up much during the day. In fact most of our highs will be reached in the early morning hours on Saturday. This will be change as we were adding to the record books today. As the National Weather Service in Des Moines points out,

“The temperature at the DSM Airport has hit 50 degrees this afternoon. If the high ends up being 50, today will tie for the 10th warmest Christmas Day on record at Des Moines. The last time Des Moines was at least 50 degrees or higher on Christmas Day was back in 1982. The high that day was 55 degrees. The all-time record high for Christmas Day is 58 degrees which occurred in 1936. We came close a few years ago hitting 48 in 2011.”

At least the sun returned today after not seeing the big bight light in the sky for quite some time. We hope you enjoyed your day today, whether it was spending it with family or friends, or simply watching the TV. From everyone here at the Iowa Storm Chasing Network, we wish you a Merry Christmas.

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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