All Weather News

Rapid Intensification or Bombogenesis

7 Dec 2009, 12:40 pm

Hello and Happy Monday everyone. Yes, we’ve turned the page to a new month and a whole new season. Winter is here and it’s here with a vengeance. Winter Weather Headlines have been posted across the the West and the Upper Midwest:



This is neat, we don’t see this too often in the Midwest. Take a look at the following forecast (surface maps) over the next 3 days and keep an eye on the low that develops in the Great Basin. There is a term in the weather world for rapid intensification of a Mid-Latitude Cyclone or low pressure system and it is called “Bombogenesis” – Classified as a low that drops its central pressure by 24mb or more in a 24hr period, essentially 1mb per hour for 24 hours. The usually happens with Nor’Easters, so to see it occur in the Midwest is always exciting.

Monday @ 6pm – Central Pressure 996mb


Tuesday @ 6pm – Central Pressure 998mb


Wednesday @ 6pm – Central Pressure 973mb


Cold Air to Follow

The heart of the Arctic air is on our side of the globe and it’s found its way into the Canadian Prairie Provinces – note the crazy color scheme (turning yellowish and greenish) just north of Ontario and Saskatchewan – THIS IS REALLY COLD AIR. It will modify and head south into the lower 48. This will be the coldest air of the season so far for most, get ready!

Arcitc Air

Yes, winter has arrived and it appears it will be staying for awhile. Take care, stay safe and stay warm – see you soon!

Meteorologist Todd Nelson – WeatherNation LLC

Leave a comment

Your email address will not be published. Required fields are marked *