Houston faces another round of slow-moving storms on Sunday with high humidity and flash flood potential. While storms will be scattered, any that form could drop several inches of rain in a short time before rain chances diminish later in the week.
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There will be another round of slow-moving thunderstorms in the Houston area on Sunday afternoon. These storms will bring a new risk of flash flooding after days of hot, humid weather with only a few drops of rain.
Over the past week, steady southerly winds have brought moisture from the Gulf of Mexico into Southeast Texas. This has caused daily thunderstorms and made the humidity so high that it is uncomfortable. That trend will stay in place for one more day, but by midweek, things will start to change slowly, making it a little drier.
Sunday
The area will have a mostly quiet start to Sunday morning, with less than a 20% chance of rain during the morning hours. People who live there will still feel the humidity in the air, though, because morning temperatures in the upper 70s and humidity levels close to 90% make for a muggy and sticky start to the day.
By the early afternoon, the weather will be better for a storm to form. The radar will be busier around 1 p.m., when storms start to form along the coastal plains and move inland. It is going to rain about half of the time in the Houston metro area between 2 and 7 p.m.
Although it won't rain everywhere, the storms that do occur will bring heavy rain. Some remote places may get up to four inches of rain in a short amount of time because the raindrops move slowly. This makes flash flooding more likely. A little less than an inch of rain will fall in most places, but some spots could get a lot of it.
After dark, when the temperatures drop and the day's heat fades, the storms should stop. It will be in the low 90s on Sunday, and the heat index will be close to 100 degrees.
Monday and Tuesday
Southeast Texas will be lucky because the chances of storms will slowly go down over the next few days. The chance of rain will drop to 30% on Monday and 20% on Tuesday. Any showers that do happen will likely be short and not as strong as the ones over the weekend.
Even though the humidity will stay high, the lower risk of floods and more sunshine may help people as the workweek starts. Still, officials are warning people to be careful on Sunday and say to keep an eye on local forecasts and reports for new information about areas that are likely to flood.
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