SAN ANTONIO – July has been bone-dry for the Alamo City, only officially clocking in a trace amount of rainfall at San Antonio International Airport. Thankfully, a tropical wave will swing moisture from the Gulf of Mexico to Texas by the week’s end.
Coastal Showers and Storms
As is typical this time of year, isolated sea breeze showers and storms will be possible Wednesday. The chance for rain is 20-30% and best chances will be east of I-35. Any lucky places that receive rain should get quick downpours, potentially a few flashes of lightning, and gusty winds. No severe weather is expected.
Potential Tropical Development in the Gulf
As of Wednesday afternoon, the National Hurricane Center (NHC) is monitoring a tropical wave over the Central Gulf of Mexico for potential tropical development. Currently, the NHC has given the wave a high (80%) probability of formation through the next 5 days. Regardless of formation, this system will swing a decent amount of tropical moisture into Texas. This will increase rain chances for San Antonio by late Friday (7/24) and through the weekend (7/25 and 7/26). On those days, scattered showers and a few storms will be possible, bringing the best chance for rain in the Alamo City in nearly a month.
Tropical Storm Gonzalo
The seventh named storm of the 2020 Atlantic hurricane season, Gonzalo, formed early on Wednesday. Gonzalo could become a hurricane by Thursday. After that, the storm is forecast to move west into the Caribbean by this weekend, in a weaker state. We’ll continue to monitor the situation, but this storm is not expected to impact the Texas Coast at the moment.
Evolving Forecast
You can keep up-to-date with Your Weather Authority as we continue to watch the tropics and this week’s forecast by downloading the KSAT Weather Authority app for Apple or Android and allow notifications for updates, including livestreams from KSAT meteorologists.
Our KSAT Hurricane Tracker app also allows you to monitor the tropics from your phone during the Atlantic Hurricane Season, which runs from June 1 to November 30.
