A major flash flood event has been underway most of the night and morning across the Rio Grande Valley, Deep South Texas, north into the Middle Texas Coast. Several flash flood emergencies have been issued for high-end flooding. Many roads are underwater and several homes have taken on water. Tune into local media outlets for reports on the ongoing flooding or check out our Twitter account (we’ve been sharing several photos and videos).
— NWS Corpus Christi (@NWSCorpus) June 20, 2018
Heavy rainfall continues to impact the aforementioned regions this morning. Like yesterday we could see a lull in the heavier rains this afternoon. Rain activity may not totally end, but hopefully, we can reduce rainfall intensities for a while and let some of the water drain off. Localized heavy rain will remain possible and if it falls over the worse off areas then flooding will continue.
The area of low pressure will continue to sag south/southwest today. By tonight it’ll be in an optimal position to produce another round of heavy rainfall. Unlike last night most of the heavy rain should be limited to South Texas, Deep South Texas, and the Rio Grande Valley. This may spare the Coastal Plains from another night of flooding rains.
Unfortunately, the news is not good for folks in Deep South Texas and the Rio Grande Valley – some who are under flash flood emergencies this morning. At least we should see a couple hours of lower rainfall intensities this afternoon. That will help some of the water drain off. However, additional flooding is likely tonight as more heavy rain develops.
The message is that a break in heavy rain may occur this afternoon in the hardest hit areas across the Rio Grande Valley, South Texas, and the Middle Coast. Another round of heavy rainfall and flooding is expected tonight in South Texas down into the Valley.