Over the past 48 hours, a system of low atmospheric pressure has traveled from the eastern Pacific Ocean, through California and into the desert Southwest. As of Friday morning, the system is centered over New Mexico and, as it continues east, it will interact with Gulf moisture to produce a severe storm and flood threat across a large portion of Texas.
Recent weather forecast model trends have increased the risk of severe thunderstorms across the Hill Country, San Antonio metro area, and I-35 corridor by late tonight. This storm system is reminiscent of what is typically seen during the spring, and it’s likely to produce scattered large hail, damaging winds, and potentially even an isolated tornado or two.
Heavy rain may also produce isolated flooding across many parts of Texas. Here’s an updated timeline for what you can expect.
San Antonio storm timeline
Morning (4 a.m. to noon): It’s likely to be a quiet start to the day as mostly cloudy skies settle into San Antonio. Moisture will be increasing, so expect a muggy morning with low temps hovering near the 70-degree mark. Temps will rise steadily, reaching the low 80s by noon…