weather bomb
noun Meteorology
A rapidly developing severe storm, technically defined as one in which barometric pressure at the centre of the storm drops by at least 24 millibars over a 24-hour period at or north of 60° latitude: brace yourselves for the Boxing Day weather bomb!...
- About three metres of his yard disappeared during the 2010 weather bomb.
- A Nasa astronaut has captured the moment the powerful weather bomb storm swept over the UK, posting the image on Twitter.
- A fully fledged weather bomb is raging outside which has made our semi-sheltered spot extra popular.
Origin
1940s: popular term for an instance of explosive cyclogenesis.