"Light showers will continue into early afternoon." The post Photos & videos: Flash flooding impacts morning commute on I-93, other Mass. roadways appeared first on Boston.com.

A flash flood is a rapid rise of water along a stream or in a low-lying urban area, the National Weather Service said. Flash flooding can result from slow-moving thunderstorms, from numerous thunderstorms that develop repeatedly over the same area, or from heavy rains associated with tropical cyclones.

Back-to-back flooding disasters in recent years — in Texas, New Mexico and Kentucky, among many others — have showed that preparing for flash flooding is a new necessity as the planet warms.

With the recent deadly flash floods​ in Texas and New Mexico, it's important to remember that monsoon season has begun for the southwestern part of our country and flooding is one of the hazards that comes along with it.

Several areas in Washington, D.C., Philadelphia and other cities faced flash flooding from severe thunderstorms that hit the region.