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Editor's note: This story was updated at 12:05 p.m.
San Antonio experienced another round of rain and thunderstorms Tuesday morning, and a slow-moving weather pattern continues to keep much of South Central Texas under a threat of additional flooding.
A Flood Watch continues to be in effect through Thursday evening as several rounds of rain move across South Central Texas. Rapidly rising water could affect roads, low-water crossings and drainage areas.
The National Weather Service says some locations in the area received 1 to 3 inches of rain, with several more inches possible where storms repeatedly track over the same areas.
Heavy rain and flooding impacted Medina and Uvalde counties west of San Antonio overnight and into this morning, causing road closures and prompting several high-water rescues.
In Medina County, officials reported numerous road closures and at least four high-water rescues before 8 a.m.
The National Weather Service says drone video captured widespread flooding in D’Hanis, a Medina County community of about 800 residents.
In Uvalde County, nearly 7 inches of rain was reported near Sabinal before 8 a.m., where a high-water rescue also took place. Flooding was reported along Highway 90 near Knippa early this morning.
Flood-prone conditions are expected to continue across the region through Thursday. No deaths or injuries have been reported.
Storms are expected to bring periods of heavy rainfall throughout the day to the San Antonio area. Some areas could see several inches of rain, especially where thunderstorms repeatedly move over the same locations.
Residents are encouraged to avoid driving through flooded roadways and to remember that water depth can be difficult to judge.
Earlier Tuesday morning, the NWS said that heavy rain was affecting parts of Bexar, Comal, Medina, Uvalde and Val Verde counties, with some areas receiving 2 to 4 inches of rain in a three-hour period and with intense ongoing rainfall making conditions worse.
The NWS cautions that flooding at campgrounds near streams, rivers, or low-lying areas can be dangerous. Heavy rain can quickly cause flash flooding. If alerted to flooding, campers and those in the vicinity of campgrounds should get to higher ground immediately.
As the day wears on, weather officials say the main concern is not just the amount of rain, but how quickly it can fall.
Additionally, even after storms move through, runoff can continue to create dangerous conditions in flood-prone areas.
Temperatures will remain unusually mild for July because of the clouds and rain, with highs only reaching the low 80s. More showers and thunderstorms are possible through the week as moisture continues to move into the region.
For now, San Antonio residents are encouraged to keep an eye on changing weather conditions, while allowing extra time for morning travel, and remaining prepared for more rounds of rain.
This is a developing story that will be updated.
