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Storm Alert: Heavy rain, storms and snow to roll through St. Louis

Flash flooding will be an issue Friday

ST. LOUIS — We've known the rain was coming and now it's just starting to impact St. Louis. 

During the day on Friday, rain will be off and on. Steady, heavy rain will kick in Friday night and stretch into Saturday. It's during the heavy rain that flash flooding is expected. 

Credit: KSDK
Flash Flood Watch issued for 5 On Your Side coverage area

Two to four inches of rainfall is forecast between Friday morning and Saturday morning. Heavy rain will quickly overwhelm creeks, streams and drainage areas. Thunderstorms also are expected Friday, and the storms could produce even higher rain totals over very localized areas. 

Credit: KSDK
Marginal risk for severe storms on Friday capable of producing damaging wind gusts for St. Louis

With the heavy rain Friday evening, there also will be a marginal risk for severe weather. Some storms may grow strong enough to produce damaging wind gusts or a tornado.

Once all the rain is through, cold air will push in and there will be a brief round of light snow in St. Louis. 

Credit: KSDK
Light snow forecast for St. Louis on Saturday

The rain will transition to snow around sunset Saturday. Snow totals for St. Louis will be minimal. The further west and north you travel from St. Louis, the more likely you are to come across heavy snowfall. 

Sunday morning will be tricky for drivers. The bout of snowfall will stick overnight, with a hard freeze in the mid-20s. Then, all will melt away as the sun comes out and highs jump into the low 40s. 

Download the free 5 On Your Side app to get the latest watches and warnings and track conditions live with our interactive radar. Use the links below to download now.

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