Houston's weekend weather will be touching on plenty of outdoor activities, from planned political protests across Southeast Texas on Saturday to backyard celebrations with Dad for Father's Day on Sunday.

The BriefPersistent storms are causing significant flooding across South Texas, with Flash Flood Warnings in effect for several counties.Some areas have already received up to 10 inches of rain, leading to hazardous road conditions,

The National Weather Service has placed Washington, Grimes, Walker and Trinity Counties under a flood watch through Thursday evening. Other counties may be added based on how rain develops, but the bottom line is that conditions are favorable for heavy rain through at least the next 24-36 hours.