This sudden pressure is also known as cyclogenesis, which is the strengthening of a mid-latitude cyclone. Low-pressure systems typically “bomb-out” during the winter season, when warm ...

The November storm had a pressure which dropped to around 950 millibars, while this week’s storm dropped to around 980 millibars.

The storm reached bomb cyclone status after the central pressure dropped from 992 mb to 968 mb in 24 hours (from early Feb. 16 to early Feb. 17). The system was named Winter Storm Jett by The ...