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9:30 Mon Night Update: Squall line develops

Issued Monday, April 27, 2026

The squall line is taking shape at this hour in Missouri. I can now narrow our main threat timeframe to 3:00 a.m. to 5:00 a.m., with the main bulk of the line arriving around 4:00 a.m. on the plateau. Some storms could develop ahead of the line, as shown on some short-term models, but they shouldn’t be severe.

At this time, the storms are very severe over Missouri, with tornado watches being issued. The line will intensify over the next few hours and is likely to impact West TN with the potential for areas of significant severe weather, including some strong tornadoes. If you have family and friends in West TN, you may want to make sure they’re paying attention to the weather tonight.

As that line enters Middle TN, it will begin to weaken in our more stable atmosphere. By the time it arrives here, we will have the threat for some damaging wind gusts. Hopefully, it just weakens down to rain and thunder. The risk for tornadoes for us is very low.

So, we’ll be tracking this line through the night. Make sure your weather radio is on before going to bed just in case we get a warning.

We have another threat Tuesday night, but right now it looks like the worst of that will stay west of us. I’ll continue to keep an eye on that.

You all take care. I’ll be here if anything comes up that you need to know about.

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