A minimal change to the upper-level flow aloft will keep chances for afternoon storm activity across portions of the District. Today’s high temperatures will reach the low 90s in the afternoon under partly cloudy skies. Showers and thunderstorms are expected to develop along the higher terrain foothills by midday with showers/thunderstorms moving into the District between 1-2pm. A few elevated dew points remain for northern portions of the District which will keep a chance for some brief moderate to heavy rainfall today. The largest threat today will be a quick 0.50” in 10-15 minutes rather than any long-lasting rainfall. Once again, general storm motions will be from west to east between 10-15mph with a few erratic storms possible forming along outflow boundaries. The best chance for storms within the District will be between 2-8pm with a few lingering showers possible after sunset with skies clearing out by midnight. Overnight will be mild and dry as temperatures drop into the low 60s on the plains with mid to upper 50s along the foothills.

STORM RAINFALL POTENTIAL AND DURATION: Typical showers and thunderstorms will produce 0.05”-0.30” total in 10-30 minutes. A moderate to strong shower/thunderstorm will produce 0.30”-0.60” total in 10-30 minutes.

WORST CASE SCENARIO: A strong stationary thunderstorm or training of thunderstorm cells will have the potential to produce 1.20” total in 30-60 minutes.

A LOOK AHEAD: The heat returns tomorrow as high temperatures jump back into the mid to upper 90s. A slight chance for scattered high-based showers, mainly along the foothills in the afternoon and early evening with minimal, if any precipitation expected. Hot and dry Monday & Tuesday with highs in the upper 90s under sunny skies.