The last of the short waves associated with the upper trough that has been ever so slowly inching toward the area will move across the area Wednesday afternoon. It will bring a good deal of clouds along with a couple of showers and a
thunderstorm. Mainly in areas east of I-95 there is potential for severe storms and flooding downpours Wednesday afternoon and early evening. Then the whole shebang finally moves away overnight and we get into a settled pattern for the better part of a couple of days.
While you couldn’t tell from the rainfall amounts recorded at some of the hourly reporting stations (mostly airports) across the Greater Baltimore Area, there was some tremendous rain that occurred last night. The Science Center officially had 0.02″ and BWI a mere 0.16″, but some of the statements and warnings issued by the National Weather Service between 11 p.m. and 3 a.m. have stated that parts of the area absorbed over three inches of rain. This coming from some local emergency management officials, and it was also reported at 1:35 a.m. that the White Marsh Run
in east-central Baltimore County had risen to 10 feet.
Luckily, Wednesday won’t bring rainfall as heavy, nor will it be as widespread as Tuesday night’s. There is still a front that is in the process of moving across Maryland, and it will be a catalyst for a few more showers and a thunderstorm or two. However, based on the projections from the Storm Prediction Center in Norman, Okla., the greatest threat for severe weather Wednesday will be to the east of Baltimore. Nonetheless, areas not too far from the Chesapeake Bay and the entire Delmarva Peninsula may encounter some strong wind gusts in any thunderstorm Wednesday afternoon.