Dallas Weather Alert: Brace for Severe Storms, Giant Hail & Possible Tornadoes Tonight – Latest Hour-by-Hour Forecast

DALLAS—North Texans should brace for a stretch of muggy afternoons and hit-or-miss thunderstorms that could disrupt holiday plans through Memorial Day and beyond, according to the National Weather Service (NWS) in Fort Worth/Dallas. The latest NWS outlook keeps most of the Metroplex under a “storm-chances” banner every day through Thursday. Widespread severe weather is not expected, but any cell that manages to develop could drop pea-to-nickel-size hail and generate wind gusts around 40–50 mph, especially late afternoons and early evenings. Lightning and brief downpours will be the main concerns for outdoor events. Key points for the week ahead • Memorial Day: Partly sunny, humid, 40 % chance of afternoon storms. High 88 °F, heat index near the low 90s. • Tuesday–Wednesday: Greatest rain coverage (50–60 %) as a weak upper-level disturbance drifts overhead. Isolated pockets of 1–2 inches of rain could trigger nuisance street flooding. Highs 84–87 °F. • Thursday: Storm chances taper to 30 %. Morning clouds, afternoon sun. High 89 °F. • Friday into next weekend: A drier southwest flow returns, trimming rain odds below 20 % and pushing highs back to 90–92 °F. Air quality concerns An Ozone Action Day remains in effect for Dallas, Collin, Denton and Tarrant counties, meaning sensitive groups should limit prolonged outdoor exertion during the late afternoon peak. Why the pattern is stubborn North Texas sits on the northern edge of deep Gulf moisture while upper-air disturbances ride the subtropical jet. Without a strong cold front to clear the air, daytime heating creates just enough instability for scattered convection each afternoon. Safety reminders • Keep a reliable weather app or NOAA Weather Radio handy; storm intensity can change quickly. • If thunder roars, go indoors—lightning can strike 10 miles from a storm’s core. • Never drive across water-covered roads; even 6 inches of moving water can sweep a vehicle away. Bottom line Plan around pop-up showers and sweltering humidity this holiday week. Skies won’t be a total washout, but outdoor gatherings should have a sturdy “Plan B” until the pattern calms late in the week.