FloodZoneMap.org

Flash Flood — Grayson, TX

Sep 8, 2010

The remnants of Tropical Storm Hermine moved through the western portions of north Texas dropping several inches of water in some locations and producing 8 tornadoes. Significant flash flooding occurred during the late evening hours of September 7th through September 8th. Up to 12 inches of rain fell across the area with the highest totals along the Interstate 35 corridor. Numerous high water rescues and evacuations were conducted across the region. On September 8th, an EF2 tornado moved through

Source: NOAA National Weather Service Storm Events Database (event 260671). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Grayson, TX

This event is one of many recorded floods in Grayson County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Grayson County flood data →

More Flood Stories

Flood2 deaths$50K damage

Grayson, TX · Dec 24, 2024

Thunderstorms developed along a Pacific cold front as it and an upper level trough swept through the Plains on Christmas Eve 2024. The system produce a few severe storms across Central Texas and flash flooding in parts of North Texas.

Read the full account →
Flash Flood$100K damage

Grayson, TX · Sep 21, 2023

On September 19th, a robust storm produced some hail and damaging winds in Denton County, moving into Dallas County. Later that evening, a cluster of storms developed to our west and northwest, producing some hail and damaging winds in our western counties.

Read the full account →
Flash Flood$18K damage

Grayson, TX · May 12, 2024

A pair of shortwave troughs generated two rounds of thunderstorms; one on May 11 and the other on May 12. Most storms occurred on Sunday as the second and stronger disturbance moved overhead.

Read the full account →
Flash Flood

Grayson, TX · Jul 23, 2024

An upper trough draped across the central and eastern U.S. and a stalled front over Central Texas combined to generated scattered showers and thunderstorms July 21 through July 23.

Read the full account →