A flood watch that includes Plano will remain in place through Friday morning, making the period before Wednesday afternoon a useful time to review flood-hazard information and weather-alert settings.
The National Weather Service in Fort Worth set the watch for 4 p.m. Wednesday, Sept. 30, through 7 a.m. Friday, Oct. 2. Its 2:15 p.m. Sept. 29 update includes Collin and Denton counties and specifically names Plano. All times are Central Daylight Time.
The forecast calls for slow-moving showers and thunderstorms, with 2 to 4 inches of rain across the watch area and localized amounts of 4 to 6 inches. These are regional estimates, rather than a block-by-block rainfall forecast. Runoff could flood streams, creeks and other low-lying places, including low-water crossings.
Plano's Floodplain Information page brings together local resources on flood hazards, property protection, drainage maintenance and safety before, during and after a flood. The city also lists a public flood-information assistance program through its Engineering Department. Residents who are uncertain about a property's flood exposure can use those official resources rather than assume that a dry street today will remain passable through a heavy-rain event.
The city's Emergency Warnings page identifies three information channels: NOAA all-hazards weather radio, the outdoor warning system and Wireless Emergency Alerts. Reviewing more than one way to receive updates is useful while the forecast is still developing.
The current notice is a watch, meaning flooding is possible during the stated period. It does not confirm that a Plano home or road is flooded. Follow later National Weather Service updates and any instructions from local officials, and never drive or walk into floodwater.


