Increasing Risk of Severe Weather Saturday

Weather Blog

Peoria, Ill. (WMBD) – A series of storm systems will bring multiple rounds of rain to Central Illinois through the end of the week with a chance of strong to severe storms on Saturday.

What we know

  • Periods of showers and thunderstorms from Thursday through Saturday evening
  • Heaviest rain moves in Friday night and Saturday
  • Severe storms possible Saturday afternoon and early evening
    • Large hail, damaging winds and tornadoes are possible

A stalling front will remain draped across the state allowing multiple rounds of rain to push through the region through Friday before the main system moves in on Saturday. A few strong to severe storms could bring hail and gusty winds to Central Illinois Friday night before the main severe weather threat moves in Saturday.

Saturday Severe Weather Risk

The Storm Prediction Center has placed Central Illinois within a Moderate Risk for severe storms on Saturday. The previously mentioned front will begin to lift to the north as a warm front bringing a warm, muggy and unstable air mass to Central Illinois Saturday afternoon. With the surface low off to our northwest, a cold front along the Mississippi River and a strong jet streak aloft bringing strong wind shear to the area, the primary ingredients appear to be in place for strong to severe storms.

Scattered severe storms are expected to develop Saturday afternoon and continue through late afternoon and early evening. The current time frame for severe storms is between noon and 7 pm Saturday. Storms that develop could produce large hail up to 1.5″ in diameter, 60-70 mph wind gusts and a few tornadoes. The exact locations of where these storms is not yet known but conditions for theses storms exist everywhere in the region.

Rain moving through the region Saturday morning could alter the location of or act to limit the risk of severe storms however, most model guidance suggest that the atmosphere will recover once the morning rain moves north, but it’s something that will continue to be watched. If the Saturday morning rain last longer or the cold front moves through sooner than expected the severe weather threat could be lower.

Regardless of severe weather it appears moderate to heavy rain will still be likely. Rainfall amounts will generally range from 1 to 2 inches through Saturday night and will likely result in additional river level rises through next week.

With severe weather in the forecast make sure you have multiple ways to receive weather alerts. Mobile devices and apps are a good secondary source but should never be solely relied upon for warnings as cell towers can get bogged down. Your first line of defense against severe weather is always going to be a NOAA Weather Radio, so make sure your radio is in working order.

Be sure to monitor forecast from Your Local Weather Authority for the latest on this developing situation. Don’t forget to download our new CiProud2Go weather app for the latest information.

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