Spurs fever is about to crank up across San Antonio this weekend, but while fans plan watch parties and rally towels, meteorologists are eyeing a much soggier storyline for early next week. Forecasts are flagging a surge of tropical moisture teaming up with a weak front, a combo that could dump heavy rain on Monday and Tuesday and trigger rapid street and creek flooding. If your game plan involves outdoor viewing or an early commute, it is a good time to sketch out a Plan B.
According to KSAT, Weather Authority meteorologists Justin Horne and Sarah Spivey say that by Monday, deep moisture will be in place, and a weak frontal boundary sliding south could tap into it and produce heavy downpours. They stressed, "This is your early heads up," while noting that exact locations and rainfall totals are still uncertain. KSAT's local outlook keeps the highest odds of more organized downpours pinned to the start of next week.
What forecasters are watching
Per the National Weather Service Austin/San Antonio, the next chance for measurable rain arrives at the start of next week, and as of the morning update, no watches or warnings were in effect. NWS forecasters point out that saturated ground from recent showers means even short bursts of heavy rain can more easily cause street flooding and quick rises in area creeks. That setup means smaller, training storms could still trigger localized flooding problems, even if the overall rainfall totals do not look especially impressive on paper.
Why San Antonio pays attention
Last June's flash flooding that killed 13 people is a stark reminder of how quickly intense downpours can turn deadly in the region. Reporting by TPR details the toll of that event and the local response that followed. As part of this unsettled warm-season pattern, Hoodline previously highlighted a late May Memorial Day flood threat that also had the Alamo City on edge.
How to prepare
Per the City of San Antonio flood guide, residents should avoid driving through standing or moving water, shift outdoor gatherings indoors when heavy rain is in the forecast, and keep phones charged along with a simple emergency plan. The guide includes maps of low-water crossings and preparedness checklists for both families and businesses. If you live near creeks or in low-lying areas that tend to pond water, the guide recommends having a battery backup and multiple ways to receive official alerts.
When to check back
Forecast details, including timing, specific locations, and how much rain ultimately falls, are likely to shift as new model runs come in, so expect some fine-tuning as Monday gets closer. For the latest local guidance, check KSAT and the NWS Austin/San Antonio. We will share updates if watches or warnings are issued.
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