Sherman residents have more than a single evening of rain to plan around: the National Weather Service has extended a flood watch for Grayson County through 7 a.m. Friday, Oct. 2.
The watch begins at 4 p.m. Wednesday, Sept. 30. Slow-moving showers and storms could deliver 2 to 4 inches across the watch area, with localized totals of 4 to 6 inches. Those are regional forecast ranges, not a predicted total for every Sherman neighborhood.
The concern is runoff into creeks, streams and low-lying areas. The Weather Service also says low-water crossings may flood. A watch means flooding is possible; residents should monitor for later warnings rather than assume the watch confirms flooding on a particular road.
Before the rain arrives, check how warnings will reach you. Grayson County offers CodeRED notifications, and weather warnings are a separate opt-in feature. The county cautions that a phone number may be missing or outdated in its database, particularly after a move or number change.
Sherman's engineering department also provides floodplain information and directs residents to FEMA's mapping service. That is useful background for understanding property exposure, but it should be read alongside current forecasts and warnings.
