The Woodlands faces its highest flood risk of the week Thursday and Friday as moisture from Hurricane Polo's remnants combines with a slow-moving cold front over Southeast Texas.

FOX 26 Houston meteorologist Allison Gargaro reported Sunday, Sept. 27, that rain chances will increase Wednesday, Sept. 30, with the heaviest rain expected Thursday, Oct. 1, and Friday, Oct. 2. Southeast Texas is under a 2 out of 4 flood risk for Thursday, according to the forecast.

Polo, a Pacific hurricane, is forecast to make landfall across Baja California and send its remnants into New Mexico and Texas, feeding tropical moisture into the approaching front.

"Hurricane Polo is something Texans should be keeping an eye on," Gargaro said Sept. 27. "It will make landfall across Baja California early this week and its remnants will move into New Mexico and Texas bringing the potential for some heavy rain if not flooding."

The Houston Chronicle reported Monday, Sept. 28, that the heaviest rainfall appears most likely to set up north and west of Houston, a zone that includes The Woodlands. A small eastward shift in the rain axis could raise the potential for localized flooding closer to the city. Rainfall totals of 2 to 4 inches are possible across much of Southeast Texas through the weekend.

Repeated downpours over the same areas would increase the chance of water collecting on roads and in low-lying spots, the Chronicle reported. The region's flood potential Friday into Saturday depends partly on how much rain falls Wednesday and Thursday.

Marc Chenard, a meteorologist with NOAA's Weather Prediction Center, told USA TODAY that the storm setup will produce widespread heavy rainfall. The Weather Prediction Center has placed parts of the Texas Panhandle and Central Texas under a moderate risk of excessive rainfall, with the risk expanding across the Southern Plains as the system moves east.

Gargaro called the setup "complex" in her Sept. 27 forecast, noting that global forecast models still disagree on the exact timing of the rain.

No local warnings have been issued.

The Texas Division of Emergency Management said Sept. 27 that the state is preparing for widespread excessive rain and urged residents to plan ahead. No watches or warnings specific to Montgomery County had been issued as of Monday, Sept. 28.

Residents should monitor the National Weather Service Houston/Galveston office and Montgomery County's Office of Emergency Management for updated watches and warnings as the storm approaches.