The weather bomb of October 26, 2010

What happened?

On October 26, 2010, an exceptionally deep low-pressure system hit the north-central United States. The cloud shield from this system covered a great deal of North America, and numerous reports of severe weather, both convective and non-convective, were received. The surface pressure was at its lowest at Bigfork, MN, at 955.2 mb, breaking an all-time low pressure record for that state. The water vapour animation from this system is presented here.
The term "weather bomb" is used for this storm. This term is one that is at least 30 years old, and refers to any extratropical storm that deepens by at least 24 mb in at most 24 hours. This storm deepened from 982 mb to 957 mb, or 25 mb, in 18 hours, easily qualifying it as a bomb.

Satellite images


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Last update to this page: October 29, 2010