By Robb Ellis

CHICAGO (CBS) —  A line of slow moving storms may develop into severe storms Monday afternoon and sweep across our area into the evening.

A pair of tornado warnings were issued in DeKalb county around 4:30 p.m. At least two possible tornadoes were spotted, including one near Kirkland and another near Monroe Center.

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According to CBS 2 meteorologist Robb Ellis, the line will begin to develop more distinctly between 4:00 p.m. and 5:00 p.m. and likely continue sweeping across the entire viewing area through 9:00-10:00 this evening.

A tornado watch has been issued until 10 p.m.

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The greatest potential for severe storms appears to be between 5:00 p.m. and 8:00 p.m. An ongoing flooding threat may persist through midnight.

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The line of storms will likely contain gusty winds and a few tornadoes are possible. Because the storms are slow moving, there may be some localized flooding.

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The threat is greater later in the evening between 7:00 p.m. and 10:00 p.m. and farther south (south Chicago to Kankakee to northwest Indiana.

The primary threat includes gusty winds. The secondary threat has tornadoes and flooding.

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There is a possibility of severe thunderstorm warnings by the evening newscasts. A tornado warning or two cannot be ruled out. Flash flood warnings will begin to emerge as the dominate threat. Heavy downpours will occur in a short time.

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It’ll be steamy and stormy through Thursday with another round of strong storms possible on Tuesday night.

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And it’ll be slightly cooler but much drier weather by Friday through the weekend.