Flash Flood — Gregg, Texas

2025-05-26 · near Tenneryville, Gregg, Texas

Event narrative

Several high water rescues were needed for stranded motorists under the railroad overpasses in Longview, including Green Street and Nelson Street, Green Street and Cotton Street, and High Street and Cotton Street. In addition, several low lying areas across the city were flooded as well.

Wider weather episode

A weak surface frontal boundary drifted south to near the I-20 corridor of East Texas and North Louisiana during the early morning hours of May 26th, with a warm and moist air mass along and south of the front yielding adequate instability along and south of the front. While scattered strong to severe thunderstorms over portions of extreme Northeast Texas, Southeast Oklahoma, and Southwest Arkansas reinforced this boundary south during the evening of the 25th, a second complex of showers and thunderstorms developed during the early morning hours of the 26th along this front over North Texas, as additional upper level disturbances and a southerly low level jet resulted in large scale ascent. This complex of storms spread southeast across much of East Texas and North Louisiana during the morning and afternoon hours, and produced instances of damaging winds and flash flooding along the front along the I-20 corridor.

View location on OpenStreetMap → (32.5451, -94.8232)

Source: NOAA Storm Events Database, event_id 1265161. Narrative written by the NWS forecast office that issued the report.