Highs on Wednesday afternoon will climb into the lower to middle 90s as a line of strong to severe thunderstorms approaches our region between 7pm and midnight as depicted in the image above from the latest North American Model (image courtesy Tropical Tidbits).
Any thunderstorms that do make it into our region from southern Pennsylvania may produce damaging winds and large hail. The Storm Prediction Center (SPC) has placed the northern half of the DC Metropolitan Area under a slight risk for severe storms on Wednesday afternoon and evening. The best chance of storms will be along the PA/MD border southward towards the Potomac River.
Very Humid Thursday and Friday with a better chance of Thunderstorms across the entire Region
The image below shows dew points rising into the middle 70s across the DC Region on Thursday and Friday making it feel very humid.
Severe Thunderstorms Possible on Thursday Afternoon
Upper level disturbances will move along a stalled frontal boundary draped across our area on Thursday and Friday with scattered strong to severe thunderstorms across the DC Region. Storms will be capable of producing dangerous cloud to ground lightning, hail and damaging winds.
The front is currently forecast to clear our area on Saturday morning allowing much dryer air to move into the area during the upcoming weekend.
All eyes then turn to the Gulf of Mexico next week as a tropical system may form potentially threatening the United States Gulf Coast during the second half of the week. Stay Tuned.