ALT A National Weather Service Houston/Galveston graphic detailing the Heavy Rain Risk through the weekend. Multiple rounds of moderate to heavy showers and thunderstorms are expected through Sunday. The Excessive Rainfall Outlook shows a Slight Risk (Level 2 of 4) for southern/coastal zones today, the entire area Saturday, and eastern zones Sunday. A Marginal Risk (Level 1 of 4) covers other parts of the region during this period. Localized flash flooding is the most likely impact. Residents are advised to remain weather-aware.

ALT National Weather Service Houston/Galveston graphic detailing Observed and Forecast Rainfall Totals, updated May 21, 2026. Past 48 hours saw widespread 1-3 inches of rain, with 6-8+ inches along the coast. Forecasts indicate multiple rounds of rain, with lower totals tonight into Friday, but higher totals of 2-4+ inches expected Saturday through Memorial Day.1

ALT National Weather Service Houston/Galveston Flood Watch for portions of southeast Texas, including Jackson, Matagorda, Wharton, Fort Bend, Brazoria, and Galveston counties. Valid from Thursday, May 21st, through Monday, May 25th. Expect multiple rounds of showers and thunderstorms with 4-6 inches of rain, leading to potential flooding of low-lying areas, rivers, creeks, and roads. Turn around, don't drown.1

ALT Weather graphic titled "Locally Heavy Rain Possible". The slide details the Excessive Rainfall Outlook, showing periods of showers and thunderstorms expected today through early Saturday. The greatest coverage will be Friday afternoon into Friday night. A Marginal Risk (level 1 of 4) of Excessive Rainfall is present today north of I-10, increasing to a Slight Risk (level 2 of 4) for most of the area Friday into early Saturday. Total estimated rainfall is generally 2 to 4 inches, with the highest totals likely north of I-10. Potential impacts include minor street ponding/flooding, with a few instances of flash flooding possible if training heavy rainfall occurs.

ALT A graphic showing low temperatures so far this morning across Southeast Texas. Inland, low temps have ranged from the middle teens to lower 20s, a hard freeze for all but the immediate coast, where lows have been 25-30°

ALT A National Weather Service (NWS) graphic titled "Weather Outlook" for the Houston/Galveston area, issued on Tuesday, January 27, 2026. The slide presents a five-day forecast table followed by a summary overview. Temperatures will trend warmer through Thursday. Rain chances return Thursday night through early Friday morning before the next cold front arrives. That front is expected to bring temperatures down across the area this weekend. The slide also lists the source of information: www.weather.gov/houston.

ALT A National Weather Service (NWS) graphic titled "Low Water Advisory" for January 27, 2026. The slide contains a map graphic and text detailing a Low Water Advisory in effect for Galveston Bay and Matagorda Bay. Key details of the advisory: Duration: Through at least Wednesday Evening, affecting each Low Tide Cycle. Location: Galveston Bay and Matagorda Bay, with conditions expected to be more severe in the upper portions of the bays. Conditions: Low Tides around 1.5 Feet Below Mean Lower Low Water. Impact: Increased potential for vessel grounding. Mariners should navigate shallow waters with extreme caution due to below normal water levels.