What Is a Bomb Cyclone?

🌀❄️💨 From the StormTracker Weather Center… How will the bomb cyclone and atmospheric river affect western Montana? It means several days of scattered valley rain/snow and mountain snow showers! We will mostly see effects from the atmospheric river, which is a wide river in the sky that drops off rain/snow. An average atmospheric river spans 275-350 FT wide and a strong AR can transport water vapor 7.5-15x the average flow of water at the mouth of the Mississippi River. In other words, early ho

What is a Bomb Cyclone?