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A Few Storms Possible Tonight, Then Severe Storms Possible Tomorrow

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Our recent streak of quiet weather will come to an end tonight and tomorrow as we'll see a couple of opportunities for showers and storms. Some storms may become severe later in the day tomorrow.

Initially, a warm front will move through the area overnight and into tomorrow morning. While severe weather isn't expected with these, any scattered storms that form could produce locally heavy rain and hail.

Any of these showers and storms could end by the early to mid-morning hours tomorrow, and then we'll be much warmer tomorrow afternoon behind this warm front. Highs could reach the upper 70s tomorrow afternoon.

Given the increase in temperature, as well as additional moisture and wind shear, we will have to watch tomorrow afternoon to see if any storms pop-up. If they do, we could see a few discrete cells moving through the area. These storms, again should they form, could produce a large hail and isolated tornado threat. The timing for this would be mainly during middle of the afternoon through early tomorrow evening.

Our best chance for thunderstorms and any severe weather will come tomorrow evening into early tomorrow night as a cold front approaches from the west. We will likely see a squall line move through the area between 8 PM and 12 AM. The linear structure of this squall line should help reduce (but not completely eliminate) any tornado risk, and it also means that high, damaging winds will become the main severe weather hazard. High winds of 60+ mph will be possible as this line moves through.

To recap, all three threats of high winds, large hail, and isolated tornadoes will be possible at different times tomorrow. If we can manage to see any storms pop-up during the afternoon, they would be isolated, discrete cells that could produce large hail or possibly even a tornado. Heading into late tomorrow evening into tomorrow night, the squall line moving through will primarily be a high wind risk.

Make sure you are weather aware from 4 PM through midnight tomorrow and that you have ways to receive any severe weather warnings that are issued. The best way is through a NOAA Weather Radio, but you can also download our Heart of Illinois ABC app and get warnings sent to your mobile device. You can also track storms once they arrive using our interactive radar.

We'll continue to update you with the latest timing and threats on-air, online, and on social media.

Brian Walder

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