LAKE COUNTY, Fla. – More than 19 inches of rain fell in just a few hours in Lake County, Florida , Sunday night, prompting the National Weather Service office in Melbourne to issue a rare Flash Flood Emergency .

KNOW YOUR FLOOD TERMINOLOGY: WHAT FLOOD WATCHES, WARNINGS AND EMERGENCIES REALLY MEAN

The flooding was caused by severe thunderstorms that rolled through the Gulf Coast Sunday night and into Monday morning. This was the same potent area of low pressure in the upper atmosphere that caused storms in Texas on Saturday that knocked out power to hundreds of thousands .

Cars were swamped as inundation remained through the early-morning hours of Monday in Central Florida.

Images from Florida Department of Transportation cameras showed State Route 46 near Sanford completely underwater,

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