Flash Flood Warning Issued for Central Grayson County, Texas Through Saturday Afternoon

Weather Alerts high NOAA · · Grayson County, Texas

The National Weather Service has issued an immediate Flash Flood Warning for central Grayson County after emergency management reported flooding in Sherman and surrounding areas.

Alert Details

The National Weather Service in Fort Worth has issued a Flash Flood Warning for central Grayson County in north central Texas. This is an immediate alert based on observed flooding conditions reported by emergency management.

Affected Areas

The warning specifically covers central Grayson County. Locations expected to experience flash flooding include:

  • Cities and Towns: Sherman, Whitesboro, Denison, Howe, Pottsboro, Collinsville, Gunter, Knollwood, Dorchester, Southmayd, Tioga, Sadler, Ethel, Luella, Boddie, and Carpenters Bluff.
  • Parks and Landmarks: Eisenhower State Park, Lake Texoma, Randell Lake, and Preston.

Local law enforcement has already reported flooding in several specific areas, including the Harrison St. bridge, the 1000 block of north Travis, and the area between Taylor St. and Parkway.

What You Should Do

Residents and motorists are urged to follow the “Turn around, don’t drown” rule when encountering flooded roads. Most flood-related deaths occur in vehicles. Do not attempt to drive through flooded underpasses, highways, or streets. Avoid low-lying areas and poor drainage zones where water can accumulate rapidly.

Expected Conditions

  • Hazard: Flash flooding caused by heavy thunderstorms.
  • Current Rainfall: Between 1 and 2 inches of rain have already fallen in the affected area.
  • Additional Rainfall: Up to 1 inch of additional rainfall is forecast.
  • Impacts: Expect flooding of small creeks, streams, urban areas, highways, and streets. Underpasses and other low-lying areas are particularly vulnerable.

Timeline

The Flash Flood Warning is effective immediately as of 12:16 PM CST and is currently scheduled to expire at 3:15 PM CST on February 14, 2026.

Source: NOAA Official Notice