Parts of South-Central Texas will experience gloomy weather conditions beginning on Monday, July 13. San Antonio and several surrounding towns are under a Flood Watch, and more storms are on the way, according to forecasters.
The National Weather Service (NWS) says there is a 20% chance of rain during the daylight hours, with higher chances after 4 p.m. Storms will primarily be along and north of a Del Rio-to-Austin line.
Folks may wake up in the middle of the night to thunder. The agency says there is a 60% chance of rain just before 1 a.m. Some counties near the Alamo City could receive rainfall of half to three-quarters of an inch.
The NWS issued a mass alert about life-threatening conditions at around 10 a.m. on Monday. Some towns included in the threat zone include San Antonio, Uvalde, Kerrville, Castroville, and Austin. View the full list by clicking here.
“Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations,” the agency wrote in the Flood Watch alert. “Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas.”
Overall storm totals in the Flood Watch area could range from 2 to 6 inches, with isolated amounts of 10 inches also possible. The latter estimate mainly applies to the Rio Grande Plains and southern Edwards Plateau, forecasters say.
Folks who have a later start to the morning could be hit by rain. There is a 60% chance of rain near the Alamo City (higher further north toward Austin and Georgetown) between 10 a.m. and 1 p.m., according to the NWS. It will be cloudy, but still warm with a high near 88 degrees. Meteorologists expect between a quarter and a half of an inch of rainfall.
After sunset, there is a 50% chance of storms developing. The most likely time they could hit comes after 10 p.m. Residents will enjoy lows around 75 degrees.
Keep the umbrella handy. Forecasters say there is an 80% chance of thunderstorms forming during the day. Most counties will experience highs near 85 degrees, and 10-mph wind gusts will make it feel cooler. Rain chances slightly dip to 70% at night.
Locals could hear storms rumbling at and after 1 a.m. The low will be around 75 degrees in most San Antonio-area towns.
The wet pattern continues with a 60% likelihood after 1 p.m. It will be another day of cloudy, grey skies, with highs around 88 degrees. Relief comes in the evening when rain chances dip to 30%. Wind gusts could reach 20 mph, so a jacket will be a must-have for residents.