The area of low pressure associated with the storm underwent bombogenesis Sunday into Monday (Oct. 29-30, 2017). Bombogenesis is a rapid deepening of atmospheric pressure in a storm, which leads to an increase in the ferocity of its winds. Scientifically, bombogenesis is defined as a drop of 24 millibars in 24 hours.
This first infrared satellite image is a wide view of the storm on the East Coast early Monday. The low-pressure center is located over the Northeast region, with a long band of clouds and moisture extending to its southeast through the western Atlantic Ocean.