Flash Flood — Webb, Texas

2025-09-07 · near (lrd)laredo Intl Arp, Webb, Texas

Event narrative

Water was over roadways. Vehicle rescue and roads closed in the area of Mines Rd. and 35.

Wider weather episode

The atmosphere on September 7th remained well saturated, with PWAT values into the 1.9 to 2.2 inch range. This deep moisture combined with the passage of a frontal boundary that extended along the coast and continued to move offshore during the early morning hours produced periods of heavy rainfall across South Texas. This was particularly true along the Rio Grande. As the day progressed, moisture convergence, daytime heating, and subtle impulses of energy embedded in the northwest flow aloft were enough to support training thunderstorms across the Victoria Crossroads, leading to isolated flash flooding.

View location on OpenStreetMap → (27.5700, -99.5000)

Source: NOAA Storm Events Database, event_id 1281430. Narrative written by the NWS forecast office that issued the report.