Today, a potentially significant flooding event is expected to impact parts of the Northeast and mid-Atlantic region, with Debby playing a key role in triggering the severe weather conditions. Multiple rounds of drenching storms are forecasted to increase the risk of flooding in areas including Pennsylvania, New York, southern New England, Maryland, Delaware, and New Jersey. Urban areas such as New York City and Philadelphia are particularly vulnerable to flooding.
The weather pattern will unfold in two main rounds of storms. The first round is anticipated to develop in Pennsylvania during the afternoon, moving towards New Jersey by the evening. These storms could bring severe weather elements like damaging winds, hail, and the possibility of a tornado. However, the second round of storms later today and into Wednesday morning is expected to intensify the flood threat.
A front is projected to slow down and stall over New Jersey, interacting with tropical moisture from Debby moving northward. This combination is likely to enhance rainfall, with 2 to 3 inches, or potentially more, falling in a short period, leading to flash flooding concerns. The Weather Prediction Center has issued a level 3 out of 4 risk of flooding rainfall for parts of eastern Pennsylvania, much of New Jersey, and southern New York.
The New York City Emergency Management Office has warned of an elevated threat to life in certain areas, with significant disruptions to travel, flooded basements, and potential damage to underground infrastructure. As a precaution, a travel advisory has been issued for New York City for Tuesday and Wednesday due to the flood threat.
Looking ahead, additional heavy rainfall from Debby is possible over the weekend, further heightening concerns for the affected regions. Residents are advised to stay informed about weather updates and take necessary precautions to ensure their safety during this period of heightened flood risk.