Rain/Snow Thursday and Friday

Good evening Iowa Storm Chasing Network followers. We just wanted to break down the rest of the week, and show what the models are forecasting over the next 48 to 72 hours.

Iowa Simulated Radar Reflectivity

Temperatures will be warming up above freezing, which will keep any precipitation that falls on Thursday in the form of rain. It will not be until a strong cold front moves through the state Friday that temperatures will fall below freezing. This cold front will usher in temperatures in the teens, with wind chills 10 to 20-degrees below zero.

Iowa NAM Snowfall Forecast

As you can see from this graphic, this evenings 00z NAM shows a swath of accumulating snow across northwest Iowa. At the top of this post, the 00z WRF was also posted. Snowfall accumulation will begin Thursday evening and into the day Friday. Light snowfall accumulations of 1″ to 4″ will be possible. Strong winds near 35mph will create for blowing snow, which will reduce visibility.

gfs_6hr_snow_acc_iowa_13
The one thing we will be watching is how Saturday plays out. This afternoon, the 18z GFS had snow accumulating across central and eastern Iowa. This evening, it has shifted south, and is in agreement with the NAM and ECMWF. Due to this, would likely see accumulating snow on Saturday from central Missouri into western Illinois. At this point and time, looks like 3″ to 6″ may be possible. Still very early for rock solid numbers, but it will be something we certainly watch as we get closer to Saturday.

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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/

One Comment

  1. It is so very, very helpful for this site. Can help prevent a lot of accidents for many. Most have to go to work & don’t have a choice, but it is especially helpful for older people like me that can hold off on going out of town when we have a warning. A senior lady was just killed recently on their way to Omaha to the Doctor..We really need this info. Thank you

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