There is the potential for roadway and airport delays during the midday hours Friday due to downpours in the area.
While the storms will be random with hit-and-miss fashion, they have the potential to cause poor visibility for a short time, as well as flash and urban flooding.
Commuters outside of the immediate Washington, D.C., area can also be affected over the I-66, I-70 and I-95 corridors.
Part of the same system heading into the Washington, D.C., area early Friday brought more than 900 flight delays to the Chicago area Thursday. The state of the system Friday is not as intense as it was Thursday over the Midwest. However, it was producing flooding on roadways in some of the southern suburbs of Pittsburgh to start the day.
Showers and thunderstorms will affect parts of the mid-Atlantic states on Friday as a push of cooler and less humid air sags southward.
During the afternoon and evening, the storms and their downpours will tend to settle over southern Virginia and North Carolina.
In the wake of the front pushing southward, temperatures will trend from slightly above-average to slightly below-average for a couple of days, Saturday and Sunday. Warm and humid air will build back next week.
Tropical Depression Two has formed in the Atlantic and could become the next tropical storm of the season by midweek.
Severe storms will rumble through parts of the Midwest, including Chicago, early Tuesday night.
Warm and humid air in place over much of the Midwest and Northeast at midweek will contribute to the risk of drenching, gusty and locally severe thunderstorms on Wednesday.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
With the recent heat fading away, more relief will greet the Northwest by midweek in the form of rain.
Heat wave continues; Ft. Worth, Waco and Wichita Falls all over 100 degrees for the 30th consecutive day. El Paso had its 40th consecutive day of 100 degree plus heat.
Barrow, Alaska (1989)
Thunder reported for the first time since July 1982 (no rain fell with this so-called storm) July 1989 did go on to become the wettest July on record with more than 3 inches of rain.
Thompson, Manitoba (1990)
97 degrees -- record heat wave.