Flash Flood Warning Issued for Collin and Northern Dallas Counties Through Saturday Morning

Alert Details

The National Weather Service in Fort Worth has issued a Flash Flood Warning for portions of north central Texas. This alert is an immediate notification regarding ongoing or expected flash flooding caused by heavy thunderstorms in the region.

Affected Areas

The warning covers the following geographic regions:

• Collin County in north central Texas
• Northern Dallas County in north central Texas

Specific locations expected to experience flash flooding include Dallas, Plano, Garland, Irving, Grand Prairie, McKinney, Carrollton, Frisco, Richardson, Lewisville, Allen, Flower Mound, Rowlett, Grapevine, Wylie, Coppell, Rockwall, Farmers Branch, University Park, and Sachse.

What You Should Do

Residents and travelers in the warned area are advised to take the following precautions:

• Turn around, don’t drown: Do not attempt to drive through flooded roads. Most flood-related deaths occur in vehicles.
• Stay aware: Monitor your surroundings and avoid low-lying areas, urban streets, and underpasses where water collects quickly.
• Avoidance: Stay away from small creeks and streams which may rise rapidly.

Expected Conditions

At 7:51 AM CST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area.

• Rainfall Totals: Between 1 and 2 inches of rain have already fallen.
• Additional Accumulation: An additional 1 to 2 inches of rain are possible through the morning.
• Primary Hazards: Flash flooding of small creeks, streams, urban areas, highways, streets, and underpasses, as well as other poor drainage and low-lying areas.

Timeline

The Flash Flood Warning is effective immediately as of 7:51 AM CST on March 7, 2026. The warning is currently scheduled to expire at 11:00 AM CST.