The northern lights are expected to be visible across Alaska and many other northern U.S. The Associated Press contributed information to this story. “You really got to get higher levels of storming really to be visible in the U.S., but the G2 prediction has since been degraded down to G1 or less,” Bill Murtagh, the program coordinator for the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center, said Wednesday. A G1 storm has a Kp-index of 5, while a G5 storm has a Kp index of 9. Geomagnetic storms are classified G1 (minor) through G5 (extreme) on the Kp-index, or planetary index. including parts of Wisconsin, Michigan and Montana - could also get a peek. Those in small slices of the contiguous U.S. In North America, the revised predictions show a broad stretch of Canada and Alaska could see the northern lights overhead Thursday. “However, now that the forecast activity is less than three days in the future, we can see that the solar features that produced the prior activity have actually diminished over the last month,” he said. The features it observed on the sun typically last one to three months, which led to its initial report, Rod Boyce, a spokesperson for UAF’s Geophysical Institute, said Wednesday. The university now says the previous forecast derived from a long-term forecast based on the sun’s rotation that went back 54 days. as previously thought.Ī previous forecast by the University of Alaska Fairbanks said the aurora would be visible in more than a dozen states. Warren)Īn updated forecast for this week’s northern lights display shows they won’t be as visible in the mainland U.S. The ebb and flow of waves and tides are the life force of our world ocean.An aurora borealis, also known as the northern lights, is seen in the sky in the early morning hours of April 24, near Washtucna, Wash.
Waves caused by the gravitational pull of the moon and the sun are called tides. Waves transmit energy, not water, and are commonly caused by the wind as it blows across the ocean, lakes, and rivers. The cause of tsunamis are not related to tide information at all but can occur in any tidal state. It is a common misconception that a tidal wave is also a tsunami. These waves are tides or, in other words, tidal waves. The gravitational pull of the sun and moon on the earth also causes waves. These waves roll upon the shore like a massive sea level rise and can reach far distances inland. Storm surge and tsunamis are not the types of waves you imagine crashing down on the shore. These very long waves are called tsunamis. Other hazardous waves can be caused by underwater disturbances that displace large amounts of water quickly such as earthquakes, landslides, or volcanic eruptions.
Sky view stormy ocean waves series#
The strong winds and pressure from this type of severe storm causes storm surge, a series of long waves that are created far from shore in deeper water and intensify as they move closer to land.
More potentially hazardous waves can be caused by severe weather, like a hurricane. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. These types of waves are found globally across the open ocean and along the coast. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. However, water does not actually travel in waves. Waves transmit energy, not water, across the ocean and if not obstructed by anything, they have the potential to travel across an entire ocean basin. Waves are created by energy passing through water, causing it to move in a circular motion. Whether observing from the beach or a boat, we expect to see waves on the horizon.
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