Subtropical jet stream right over Houston

We'll feel a lot of heat and humidity in Houston this week. But despite all the moisture in the air, there won't be much rain.

The map to the left shows the wind speed at about 30,000 feet above the ground. The main branch of the jet stream is well north of Houston right now. However, the weaker subtropical jet is directly overhead. The little bump, or ridge right over Texas, represents higher pressure which should keep us mostly dry. Small disturbances moving with the upper level winds could still produce some isolated showers through Thursday, but the chance that you'll get wet is less than 20%.

By Friday a shift in the jet stream will bring a stronger storm to the middle part of the country. That could produce a few more showers around Houston as well.