Context:

The storm system that caused significant flooding in New York and New Jersey is expected to move south towards the Mid-Atlantic states, including Virginia, Maryland, and Washington D.C. Although the storm is anticipated to weaken, it will still be fueled by moist southern air, potentially producing strong bursts of rain with rates up to two inches per hour. The Weather Prediction Center has issued a Level 2 risk for excessive rainfall, with flood watches in effect across several states. In New York City, record-breaking rainfall occurred, with 2.07 inches falling in one hour, the second wettest hour ever recorded in the city. The active weather pattern is expected to persist throughout the week, with risks of flash flooding remaining in various regions including the Northeast and Mid-Atlantic.

Dive Deeper:

• The storm that caused widespread flooding in New York and New Jersey is shifting southward towards the Mid-Atlantic, affecting states like Delaware, Maryland, and Virginia. As it moves, it is expected to weaken but will still pose a threat due to moist air from the south.

• Meteorologists have warned that the storm could produce heavy rainfall, with rates reaching up to two inches per hour, which could lead to strong bursts of storms. This is likely to result in localized flash flooding in vulnerable areas.

• In response to the impending weather, the Weather Prediction Center has issued a Level 2 out of 4 risk for excessive rainfall, and flood watches have been put in place for parts of Virginia, Maryland, and Washington D.C., extending into Wednesday morning.

• The intense rainfall in New York City on Monday led to significant records being broken, with 2.07 inches of rain recorded in a single hour, marking it as the second wettest hour in the city's history, surpassed only by a storm from Hurricane Ida in 2021.

• While the storm system is expected to weaken as it moves south, the threat of flash flooding will persist in several regions, including the Northeast and Mid-Atlantic, throughout the week. Areas like New England and parts of Pennsylvania are also expected to experience adverse weather conditions by the weekend.