A bomb cyclone is defined as an area of low-pressure where the pressure in the storm rapidly decreases; losing 24 millibars in a 24-hour period.
This is closely associated with a rapidly strengthening system. Meteorologists term this as “bombing out,” hints the name. The general rule of thumb is the lower the pressure goes, the stronger the storm is. If a hurricane in the Atlantic were to rapidly lose pressure, we would be very concerned that we could see a major hurricane develop.
Category four hurricanes generally have a pressure in the 930’s or low 940’s, very low considering the standard atmospheric pressure is around 1013 millibars. So to see a non-tropical area of low pressure deepen that quick and observe a pressure that low is definitely superlative.
Thankfully, this storm is beginning to weaken as it pushes north towards Alaska. However, a piece of its energy will break off and become its own storm system Monday night into Tuesday and progress towards Texas. This will drag a front through here which will be accompanied by a strong line of showers and thunderstorms with hail and gusty winds being the primary threat.