A flash flood warning has been issued for two major U.S. states on Sunday afternoon. The National Weather Service is warning two U.S. states about a potential flash flood situation. In recent weeks, multiple U.

On Monday at 9:23 a.m. a flash flood warning was issued by the National Weather Service in effect until 1:15 p.m. The warning is for Johnson, Wyandotte, Jackson and Cass counties.

Storms outside the higher-risk zones caused problems in central Maryland with Flash Flood Warnings and a Flash Flood Emergency being issued outside Washington, D.C. Areas such as Bethesda, Takoma Park,

St. Louis tackles summer weather extremes with flash floods and intense heatwave warnings from the National Weather Service.

A Flash Flood Watch is in effect for parts of Indiana and Kentucky until 8 p.m. Monday. KENTUCKY, USA — A Flash Flood Warning has been issued for a portion of the WHAS11 viewing area until 8 p.m. Monday. According to the National Weather Service, waves of showers and thunderstorms are expected to move over the watch area over the next few days.

Early on Thursday morning the National Weather Service's Lake Charles office announced that it would be expanding the flash flood warning that previously went as far west as Vermillion Parish to include Calcasieu, Cameron, Allen, Jefferson Davis and Beauregard parishes. The watch is in effect from 7 a.m. on Thursday to 7 p.m. on Saturday.

Around 11 million Americans are under flood alerts as a "ring of fire" weather pattern will continue to impact the eastern two-thirds of the country through the weekend.

Flash Flood Watch issued in Central Indiana, expecting heavy rain and potential severe storms, with rising heat over 100 degrees to follow.