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A historic “bomb cyclone” has caused multiple deaths and mass power outages after slamming into Seattle, Washington, as it charts a destructive path through California and Oregon.
Fire risk. The storm comes just two weeks after the Mountain fire destroyed or damaged more than 350 homes in Ventura County. That fire was fueled by dry conditions and intense Santa Ana winds ...
A bomb cyclone is a storm that strengthens so fast that the central atmospheric pressure plunges 0.71 of an inch (24 millibars) or more in 24 hours or less. The central pressure in Tuesday's bomb ...
A bomb cyclone and corresponding atmospheric river are bringing precipitation to Northern California. See satellite photos and videos of the storm.
The visual effects of a high-altitude or space-based explosion may last longer than atmospheric tests, sometimes in excess of 30 minutes. Heat from the Bluegill Triple Prime shot, at an altitude of 50 kilometers (31 miles), was felt by personnel on the ground at Johnston Atoll , and this test caused retina burns to two personnel at ground zero ...
An air burst or airburst is the detonation of an explosive device such as an anti-personnel artillery shell or a nuclear weapon in the air instead of on contact with the ground or target. The principal military advantage of an air burst over a ground burst is that the energy from the explosion, including any shell fragments , is distributed ...
The storm strengthened so fast that it fits into a special category of weather terminology known as a bomb cyclone.A storm, or cyclone, is essentially a giant spinning vacuum in the atmosphere.
So the same burst at 50,000 feet (15,000 m) will be at a pressure of about 0.1 atmospheres, resulting in a fireball on the order of 2,150 metres (7,050 ft) in diameter, about twice the size of one near the ground. For a high altitude burst, say 250,000 feet (76 km), the fireball will expand to about 46 kilometres (29 mi) in diameter. [4]