Justin Horne warns of 70 mph gusts in Weather San Antonio

Weather San Antonio turns active after sunset Tuesday, when a front moving in from the northwest is expected to trigger storms across the region. Justin Horne, a KSAT Weather Authority meteorologist, said Tuesday will stay mostly quiet until then.

The first storms are expected to develop into a line and push south, with the Hill Country likely to be affected before the San Antonio metro area. The main severe weather risks are damaging wind gusts of 70 mph or greater and quarter-sized hail, along with some street flooding.

Justin Horne on Tuesday night

Horne said, "Tuesday plays out a lot like Monday." That points to a quiet daytime forecast that gives way to a sharper change after sunset, when both the front and the dryline are expected to help spark storms.

Some showers could linger into the Wednesday morning commute, adding another round of wet roads after the nighttime line of storms. The setup also leaves the area exposed to repeated rounds of heavy rain as the week goes on.

San Antonio metro area

Sarah Spivey and Adam Caskey are part of the KSAT Weather Authority meteorologist team watching the same active pattern that starts Wednesday. Conditions are expected to remain favorable for strong storms, but the exact timing and affected areas of later rounds are still too uncertain to pin down now.

Up to 5 inches of rain could fall in spots from Tuesday night through Memorial Day, and drought-denting rain is likely over that stretch. KSAT Weather Authority meteorologists said, "Our advice: stay weather aware and check back often for updates!"