The National Weather Service has issued a tornado watch for Southeast Texas counties in the Brazos River Valley until 9 p.m. Friday.

A Tornado Watch has been issued until 9 p.m. Friday for our northern counties. For Saturday, plan on rain nearly everywhere in the Houston area.

The Storm Prediction has increased Saturday’s severe threat from 2 out of 5 to 3 out of 5 for Walker, San Jacinto, Polk, Trinity, Liberty, and Montgomery counties. The rest of Southeast Texas, including Harris, Fort Bend, and Galveston counties, will remain in the 2 out of 5 risk level.

Parts of Southeast Texas northeast of Houston are under a tornado watch and a flood advisory Friday until 7 p.m., the National Weather Service said. Doppler weather radar at 12:30 p.m. was showing a cluster of strong to severe thunderstorms moving north,

FOX 26 Meteorologist Allison Gargaro speaks more about the Tornado Watch issued for counties in the Houston-area and how the weather looks for the weekend and Texas Children's Houston Open.

HOUSTON, Texas (KTRK) -- We are declaring Saturday an ABC13 Weather Watch Day for the possibility of severe weather. Areas especially along and east of the I-45 corridor have a chance for hail ...

Watches typically cover extensive areas, sometimes spanning multiple counties or states, and can remain in effect for several hours. During a watch, it's advisable to stay vigilant, monitor weather updates, and be prepared to seek shelter if conditions deteriorate.

WATCH: Severe thunderstorm warnings and tornado warnings pepper the Mid-South ahead of main line of extreme weather