KHOU 11 Meteorologist Pat Cavlin says it's impossible to determine exactly where the heaviest of rain will fall, but everyone in risky areas should stay aware.

Scholars and designers of early warning systems say that there are still huge gaps in our ability to predict flash floods and warn those at risk.

In the Midwest, quarter-sized hail and an isolated tornado cannot be ruled out, while in the South, flood alerts are in effect for areas that were devastated by flash floods last week.

Straighter, smoother streams flow more violently than those that meander due to a reduction in friction. Areas with steeper terrain can see water accelerate downhill at a much faster rate causing a more destructive flash flood than flatter, open areas.

On Saturday at 8:38 p.m. a flash flood warning was released by the National Weather Service in effect until 11:45 p.m. for Franklin County.

According to the National Weather Service, Vermont's experience with floods can be traced to both ongoing climate change and the state's mountainous geography.

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. And there’s no more dangerous time for a flash flood than after dark;

A flash flood warning was released by the National Weather Service on Saturday at 8:22 p.m. in effect until 11:30 p.m. for Somerset County.