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Dennis has become one of the most powerful nontropical cyclones on record in the North Atlantic, packing hurricane-force winds and turning a vast swath of seas into a churning, ship-sinking cauldron with individual waves topping 100 feet. The storm slammed into Britain just one week after deadly Storm Ciara hit with high winds and heavy precipitation, prompting flooding fears....
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Northwest-facing beaches in France, Britain, Ireland and Scandinavia are seeing extraordinarily high surf from the combination of Dennis and another hurricane-force low pressure area that is in the process of merging with Dennis to create one massive area of spin in the North Atlantic. That previous storm, which also was a bomb cyclone based on its intensification rate, slammed Iceland with blizzard conditions and winds up to 108 mph Thursday night and Friday.
...
Friday marked the date of the climatological peak for bomb cyclones in the North Atlantic, given the typical intensity of the jet stream and intense air mass differences that tend to move over moisture-rich waters. What’s been especially noteworthy about the winter’s weather, however, is the frequency and intensity of the storms spawned here.
Very few of these storms typically see their minimum air pressure drop to 930 millibars or lower; yet this has now happened three times in the past 10 days, with Dennis ranking as the most intense of the three storms. (The low-pressure area that helped propel Storm Ciara into Europe last weekend accomplished this feat as well.)
https://www.washingtonpost.com/weat...b-cyclones-churns-up-100-foot-waves-slams-uk/
It's one thing to have one big storm...But more than one is notable.
...
Northwest-facing beaches in France, Britain, Ireland and Scandinavia are seeing extraordinarily high surf from the combination of Dennis and another hurricane-force low pressure area that is in the process of merging with Dennis to create one massive area of spin in the North Atlantic. That previous storm, which also was a bomb cyclone based on its intensification rate, slammed Iceland with blizzard conditions and winds up to 108 mph Thursday night and Friday.
...
Friday marked the date of the climatological peak for bomb cyclones in the North Atlantic, given the typical intensity of the jet stream and intense air mass differences that tend to move over moisture-rich waters. What’s been especially noteworthy about the winter’s weather, however, is the frequency and intensity of the storms spawned here.
Very few of these storms typically see their minimum air pressure drop to 930 millibars or lower; yet this has now happened three times in the past 10 days, with Dennis ranking as the most intense of the three storms. (The low-pressure area that helped propel Storm Ciara into Europe last weekend accomplished this feat as well.)
https://www.washingtonpost.com/weat...b-cyclones-churns-up-100-foot-waves-slams-uk/
It's one thing to have one big storm...But more than one is notable.