ALT Key Messages for Disturbance Over the Northwestern Gulf of America. 8:00 PM EDT Mon June 15, 2026 1. NHC continues to monitor a disturbance that is forecast to move into the northwestern Gulf of America near the Texas coast late Tuesday or Wednesday. The system could become a tropical storm, and interests along the northwestern Gulf Coast should continue to monitor updates to the forecast. 2. Regardless of tropical cyclone formation, interests across southern and eastern Texas and portions of Louisiana and Mississippi should prepare for periods of intense rainfall over the next several days which could produce widespread, life-threatening flash, urban, and river flooding. Gusty winds and coastal flooding are also possible along portions of the northwestern Gulf Coast. 3. Tropical storm watches or warnings could be required for portions of the northwestern Gulf Coast on Tuesday. Stay up to date with the latest at hurricanes.gov and weather.gov.

ALT Considerable Flash-and-Urban flooding is expected across southern Texas and southwestern Louisiana this week

ALT 5 to 10 inches of rain or more will lead to a significant risk for flash-and-urban flooding this week across the Gulf Coast.

ALT Key Messages for Texas the Lower Mississippi Valley. Considerable flash and urban flooding possible through this week.

ALT This graphic displays Severe Thunderstorm watch number 337 plotted on a map. The watch is in effect until 1:00 AM EDT. The watch includes parts of Delaware, Maryland, New Jersey, New York and Pennsylvania. The threats associated with this watch are a couple tornadoes possible, isolated hail up to quarter size possible and scattered gusts up to 70 mph likely. There are 13,435,951 people in the watch along with 3442 schools and 255 hospitals.

ALT This graphic displays Tornado Watch watch number 336 plotted on a map. The watch is in effect until 10:00 PM EDT. The watch includes parts of Pennsylvania. The threats associated with this watch are a couple tornadoes possible, isolated hail up to quarter size possible and scattered gusts up to 70 mph likely. There are 3,184,022 people in the watch along with 931 schools and 87 hospitals.

ALT This graphic displays Severe Thunderstorm watch number 335 plotted on a map. The watch is in effect until 11:00 PM EDT. The watch includes parts of District of Columbia, Maryland, Virginia and West Virginia. The threats associated with this watch are no tornadoes expected, isolated hail up to ping pong size possible and scattered gusts up to 70 mph likely. There are 12,848,691 people in the watch along with 3133 schools and 150 hospitals.

ALT Key Messages for Texas Flash Flooding Locally Considerable Flash Flooding Possible Heavy rainfall returns to portions of South Texas Monday evening and continues through mid week, resulting in the potential for locally considerable flash and urban flooding. Flash and urban flooding will also be possible through Monday across much of the Texas Hill Country and East Texas ahead of the heaviest rainfall arriving Monday evening. Rainfall totals of 4 to 8 inches, locally higher, are expected through Wednesday with the highest totals across South Texas and along the Texas Coast. Locally heavy rainfall will also be present over the Texas Hill Country. Flash and urban flooding could pose a significant threat to life and property. Small Stream and River Flooding Drier antecedent conditions will help to mitigate widespread river flooding; however, minor and isolated moderate river flooding is possible. For the latest rainfall forecasts, visit www.wpc.ncep.noaa.gov

ALT An infographic from the National Weather Service Houston/Galveston titled "Flood Watch," updated June 14, 2026. Key Details: Timing: In effect from 1 PM this afternoon through Wednesday morning. Location: All of Southeast Texas. A map on the right highlights the Flood Watch area in green, covering cities including Houston, College Station, Galveston, Katy, Conroe, and Liberty. Impacts: * Periods of moderate to heavy rain and storms through at least Wednesday. Life-threatening flooding is possible somewhere in the watch area. Rainfall of 2–5 inches expected, with isolated totals of 6–8" through midweek. Rivers, bayous, and low-lying areas could flood quickly. The graphic includes the NWS logo, the slogan "Turn around. Don’t drown," and a link to weather.gov/houston.

ALT An infographic from the National Weather Service Houston/Galveston titled "Periods of Rain and Storms this Afternoon/Evening," updated Sunday, June 14, 2026, at 1:19 PM. Key Details: Key Messages: Scattered to widespread showers and thunderstorms are expected ahead of and along a frontal boundary. Locally heavy rainfall is possible. Potential Impacts: Locally heavier thunderstorms capable of heavy rain and gusty winds. Minor flooding is the most likely impact if repeated strong storms move over the same area. Actions: Remain weather-aware and stay tuned for forecast updates. Map & Risk Level: An "Excessive Rainfall Today" map shows Southeast Texas highlighted in yellow. A "Flash Flood Risk" scale at the bottom ranges from 1 to 4, with an arrow pointing to level 2, indicating a Slight Risk (at least 15%) probability of excessive rainfall leading to flash flooding. Cities in the risk zone include Houston, College Station, Galveston, and Freeport.

ALT An infographic from the National Weather Service Houston/Galveston titled "Heavy Rain Potential Continues Monday and Tuesday," updated Sunday, June 14, 2026, at 1:19 PM. Key Details: Key Messages: Numerous to widespread showers and storms will continue Monday into Tuesday night due to a stalled front and tropical moisture. Estimated rainfall totals are generally 2–4 inches across most locations through Tuesday, with isolated higher amounts of 6–8 inches possible through early Wednesday. Potential Impacts: Heavy downpours, frequent lightning, gusty winds, and localized flash flooding—especially if repeated rounds of storms move over the same area. Actions: Remain weather-aware and stay tuned for updates. Outlook Maps: Two maps show the Excessive Rainfall Outlook for Monday and Tuesday. Both days indicate a level 2 Slight Risk (yellow) of flash flooding for a large portion of Southeast Texas, including Houston, Galveston, College Station, and Columbus.

ALT An infographic from the National Weather Service Houston/Galveston titled "Tropical Weather Outlook: Monitoring A Disturbance," updated June 14, 2026, at 1 PM. A banner highlights a "Formation Chance: 30%." Key Details: The Disturbance: A tropical disturbance has a Low (30%) chance of development over the northwestern Gulf of Mexico. Movement: A broad area of low pressure over eastern Mexico could re-emerge over Texas coastal waters late Tuesday or Wednesday, where conditions could support some development. Impacts: Regardless of development, this system brings a threat of heavy rainfall and flash flooding across Southeast Texas through Wednesday. Actions: Residents and visitors should monitor the forecast for updates. Map: A Seven-Day Graphical Tropical Weather Outlook map from the National Hurricane Center highlights a yellow shaded area in the northwestern Gulf of Mexico off the Texas coast, indicating a low (<40%) formation chance.

ALT The atmosphere will be conducive for thunderstorms, with potential for severe weather, late Wednesday into early Thursday. Many details remain uncertain, so check back for updates.

ALT Tropical Weather Outlook: 200 PM EDT Sun Jun 14 2026. For the North Atlantic...Caribbean Sea and the Gulf of America: 1. Northwestern Gulf of America: A trough of low pressure located over northeastern Mexico is producing disorganized shower and thunderstorm activity. Development is not expected during the next day or so while the trough remains inland and drifts northward over northeastern Mexico or southern Texas. The system is then forecast to move northeastward and could re-emerge over the northwestern Gulf of America late Tuesday or Wednesday, where environmental conditions may support some development around midweek. Regardless of formation chances, heavy rainfall and flash flooding are possible across portions of eastern and southern Texas and Louisiana this week. Formation chance through 48 hours...low...near 0 percent. Formation chance through 7 days...low...30 percent.

ALT This graphic displays Severe Thunderstorm watch number 332 plotted on a map. The watch is in effect until 5:00 AM CDT. The watch includes parts of Arkansas and Oklahoma. The threats associated with this watch are a couple tornadoes possible, isolated hail up to ping pong size possible and widespread gusts up to 80 mph likely. There are 3,896,578 people in the watch along with 1409 schools and 132 hospitals.

ALT This graphic displays Severe Thunderstorm watch number 331 plotted on a map. The watch is in effect until 4:00 AM CDT. The watch includes parts of Kansas and Missouri. The threats associated with this watch are a couple tornadoes possible, isolated hail up to ping pong size possible and scattered gusts up to 80 mph likely. There are 988,361 people in the watch along with 431 schools and 30 hospitals.

ALT This graphic displays Tornado Watch watch number 330 plotted on a map. The watch is in effect until 11:00 PM CDT. The watch includes parts of Arkansas, Missouri and Oklahoma. The threats associated with this watch are a couple strong tornadoes possible, scattered hail up to tennis ball size possible and scattered gusts up to 75 mph possible. There are 1,944,923 people in the watch along with 678 schools and 64 hospitals.

ALT This graphic displays Severe Thunderstorm watch number 329 plotted on a map. The watch is in effect until 12:00 AM CDT. The watch includes parts of Kansas, Oklahoma and Texas. The threats associated with this watch are no tornadoes expected, scattered hail up to tennis ball size possible and scattered gusts up to 75 mph possible. There are 309,525 people in the watch along with 282 schools and 39 hospitals.