⚠️ Flash Flood Warning – Galveston, TX; Harris, TX – Saturday, June 20, 2026

Flash Flood Warning issued June 20 at 12:43PM CDT until June 20 at 2:45PM CDT by NWS Houston/Galveston TX

Details

FFWHGX

The National Weather Service in League City has issued a

* Flash Flood Warning for…
Northern Galveston County in southeastern Texas…
Harris County in southeastern Texas…

* Until 245 PM CDT.

* At 1243 PM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 3 inches of rain have fallen. Additional rainfall amounts of
1 to 2 inches are possible in the warned area. Flash flooding is
ongoing or expected to begin shortly.

HAZARD…Flash flooding caused by thunderstorms.

SOURCE…Radar and automated gauges.

IMPACT…Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include…
Southeastern Pasadena, northeastern League City, La Porte,
Seabrook, Kemah, eastern Clear Lake, Nassau Bay, Taylor Lake
Village, El Lago, Shoreacres, Clear Lake Shores, Morgan’s Point
and The Johnson Space Center.

Instructions

Turn around, don’t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.