The Norman Number for Wednesday April 22 in Houston is 7. Increasing clouds this afternoon with scattered storms before rush hour. Breezy and warm with highs near 80. Happy Earth Day, by the way!
We've enjoyed a few nice spring days; now storms return to the forecast. A vigorous area of low pressure developing east of the Rockies will spawn strong thunderstorms across the Red River Valley later today and into the overnight hours.
The Storm Prediction Center shows that area as having the highest chance for storms that could produce damaging wind, large hail and isolated tornadoes:
Southeast Texas falls into the slight risk category due to the fact that storms that may also become severe, but more scattered in nature. Southeast winds will pump moisture into the region and the combination of a sagging front and short wave of upper-level energy may provide enough lift for storms.
The best timeframe for seeing any rough weather will likely be during the afternoon, especially west of I-45. Then storms that form will move eastward through the afternoon and early evening hours.
A larger storm threat looms for later in the week; more details as that forecast becomes clearer.