1:15 PM (Monday) | *Significant rainfall possible later this week in the Mid-Atlantic as a cold front grinds its way through the region*
Paul Dorian
The combination of a slow-moving cold front, strong energy aloft, and a moist low-level flow of air may result in a significant rainfall for the Mid-Atlantic region later in the week. Map courtesy NOAA, tropicaltidbits.com
Overview
There is a chance for some significant rainfall later this week in the Mid-Atlantic region as a cold front inches its way across the area in the late Wednesday to late Thursday time period. The slow moving surface cold frontal system will have support aloft with a strong disturbance and will have lots of moisture to work with as a broad southerly flow of air develops just ahead of it. The front will be followed by cooler-than-normal air for the eastern states for the late week and the upcoming weekend.
A few inches of rain are possible later this week in the Mid-Atlantic region as a cold front grinds its way through the area. Map courtesy NOAA/WPC
Details
There was a heavy rain event in the Mid-Atlantic region earlier this month associated with the remains of Hurricane “Ida” and we might be setting up for some significant rainfall later this week. While tropical moisture won’t be involved, a few inches of rain could be generated in the DC-to-Philly-to-NYC corridor from later Wednesday into late Thursday as a strong cold front grinds its way through the area. The slow-moving cold front will have plenty of moisture to work with on its front side as it slides into the Mid-Atlantic given the expectation of broad southerly flow. In addition, the surface frontal system will be supported by strong upper-level energy that will grind to a halt in the Ohio Valley later in the week.
Cooler-than-normal air will follow the passage of the late week frontal system and the pleasantly cool conditions should last through the upcoming weekend. Map courtesy NOAA, tropicaltidbits.com
As a result of the heavy rain event earlier this month, the grounds are still pretty well saturated in the Mid-Atlantic region and we’ll have to watch out for the possibility of flash flooding. In the wake of the frontal passage, cooler-than-normal air will arrive at week’s end and it should stick around through the upcoming weekend to go along with plenty of sunshine. Another upper-level trough is likely to form in the eastern states next week and this too can result in some cooler-than-normal weather.
Meteorologist Paul Dorian
Peraton
peratonweather.com
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