Heavy rain threatens 18 states this week

Forecasters are warning of a soaking week ahead, with up to 18 states on alert for heavy rain that could bring flash flooding and overflowing waterways. Several states are bracing for two or more inches of rain through the week.

The states on alert include Arizona, Colorado, Illinois, Indiana, Iowa, Kansas, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Wisconsin, and Arkansas, cutting across some of the country's busiest freight corridors.

The National Weather Service also issued coastal flood statements for parts of Florida, including Mainland Monroe and far southern Miami-Dade County, warning of water on low-lying roads through Monday.

Officials remind drivers to stay clear of flood-prone areas, be extra cautious at night when flood dangers are harder to see, and never drive into water of unknown depth. Most flash flood deaths happen when vehicles are driven into floodwaters.

Why it matters

Rain-slicked interstates and ponding water raise hydroplaning and pileup risk, especially for loaded trailers. Slow down, add following distance, and if water covers the road, turn around.