A severe weather system known as Bomb cyclone approaching US coastwhich threatens to cause widespread disruption in several states. This significant meteorological event will bring intense winds, significant precipitation and significant snowfall in mountainous areas, accompanied by a Category 5 atmospheric river. Scientists predict that California and other states will receive more than eight trillion gallons of rainfall.
Bomb Cyclone: ​​What is it?
These intense winter stormsknown as Bomb cyclonescharacterized by rapid temperature drops of 24 millibars within 24 hours. This particular system is predicted to experience a pressure drop of about 70 millibars in one day, falling to 942 millibars. According to Weather Nation, these parameters vary with altitude. Such severe conditions are comparable to Category 4 hurricanes.
The term “bomb cyclone” was established by meteorologists in the 1980s, referring to the rapid intensification of weather patterns. These systems are strengthened by drawing in warm, moist tropical air, creating an atmospheric river that brings significant rainfall and strong winds.
The current system targeting the West Coast is expected to be fully engaged with the atmospheric river.
The storm is picking up fast this week
Weather forecasts indicate that between Tuesday and Thursday, the approaching storm will experience a dramatic pressure drop of 50 to 60 millibars within 24 hours. Starting above 1000 millibars on Monday night, pressure may drop below 950 millibars by Tuesday evening. Lower pressure readings indicate increasing storm intensity.
The University of California at San Diego developed a scale from 1 to 5 to assess these effects. Coastal regions of California are expected to face Category 4 (“extreme”) conditions, with rain expected from Tuesday night into Thursday. Precipitation levels in excess of twelve inches are possible in southern Oregon and northern California, likely resulting in flash flooding and flash flooding.
Residents in flood-prone areas are advised to be vigilant and prepare for possible evacuation.