A flash flood warning is in effect Monday morning in Dallas as the region has received three months of overnight rain.
East Dallas has received more than 9 inches of rain within six hours – and it’s going to rain more on Monday morning. During an average summer, Dallas receives a total of 8 inches of rain.
At one time at night, the precipitation rate was more than 5 inches per hour.
Dallas Fort Worth International Airport issued a ground stop Monday morning due to thunderstorms.
The school district of Dallas has warned that some buses may run late on Monday as streets are flooded.
A flood watch now extends to central and northeastern Texas, where 2 to 5 inches of rain are expected. Intermittent, heavy rain in excess of 8 inches is possible in isolated areas.
The extreme rain made it the third warmest August on record for the Dallas/Fort Worth area, based on records from 1899.
This rain will gradually push east; Heavy rain and flooding are expected to continue through Tuesday morning in Shreveport, Louisiana.
ABC News’ Kenton Gaveke contributed to this report.