Flash Flood — Harrison, Texas

2025-05-01 · near Estes, Harrison, Texas

Event narrative

Multiple county roads across Harrison County were flooded and closed.

Wider weather episode

Showers and thunderstorms, some of which contained heavy rainfall, continued from the evening hours on April 30th through the early morning hours of May 1st, along and ahead of a weak cold front that slowly advanced southeast into portions of East Texas and Southern Arkansas. Widespread rainfall amounts of 2-5+ inches fell from April 30th through the early morning hours of May 1st generally along the I-20 corridor of East Texas and North Louisiana, resulting in continued instances of flash flooding especially across portions of Smith, Cherokee, and Harrison Counties, before the flood threat subsided prior to daybreak. The weak surface boundary lingered across portions of Lower East Texas south of I-20 into Northwest Louisiana to along the Louisiana/Arkansas border through the afternoon of the 1st, with very warm, moist, and unstable conditions again developing along and south of the front. The unstable air mass along and southeast of the front coupled with weak forcing aloft contributed to the development of a few isolated supercell thunderstorms over portions of Deep East Texas into Northwest Louisiana during the late afternoon and early evening, with one nearly stationary supercell thunderstorm producing multiple instances of large hail throughout San Augustine County for a couple of hours before weakening.

View location on OpenStreetMap → (32.4482, -94.6544)

Source: NOAA Storm Events Database, event_id 1257525. Narrative written by the NWS forecast office that issued the report.