GiftOutline Gift Article The center of what forecasters refer to as bomb cyclone was measured at a record-low barometric pressure of 921 millibars, equivalent to the eye of a Category 4 hurricane and the lowest documented over the Aleutians as far back as the 1950s, Brettschneider said. The storm unleashed seas as high as 54 feet (16.5 meters) and winds topping 80 miles per hour (120 kph) - a force of Category 1 on the Saffir-Simpson hurricane wind scale - in the western Aleutians, the weather service said. This plunge in pressure is double the criteria for bombogenesis, in which a storms pressure drops 24 millibars in 24 hours and earns the bomb cyclone moniker. On Thursday morning, the National Weather Services Ocean Prediction Center confirmed that the storm is already generating 110 mph winds.
It is not a cold and wintry mixture
( z0 mix :polarity ( z1 cold ) :rel - )
(z0 / mix-01
    :polarity (z1 / cold-01)
    :rel -)
It is not a cold and wintry mixture
z0 :polarity z1
z0 :rel 0