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At approximately 11:20pm Ground Zero Radio started receiving reports of strange lights being seen streaking across the sky in Portland, and have been sent links to radar images which show a large control rapid form over the area. Please check out the images, links, and video. If you have more information or additional images or video please email us. This is a developing story so please check back often.
12:08am Update – We have just received a call from a military source that two missiles were launched from a base near Kodiak Alaska on a southern trajectory. More information coming soon�
Originally posted by Savorrow
I appreciate the embed, I am new to the site and not entirely sure how to achieve this effect!!!! Again, much appreciated!
With the implementation of the WSR-88D NEXRAD system in the early and mid 1990s, this changed completely. The new systems are much more powerful, much more sensitive and almost completely automatic. The new systems attempt to keep anomalous returns (called AP for Anomalous Propagation of the radar beam) to a minimum by using complex algorithms and filtering techniques. These same algorithms, however, can also block out or impair detection of meteorological targets if not applied properly, causing some very unnatural looking patterns. The radars can also measure the velocity of radar returns using the Doppler theory. Because of this, full color images of target velocity (measured inbound and outbound along each radial) are available for every elevation slice. This is what allows us to actually see and measure the "spin" within a tornado, as well as see it's shape! Cool, huh!? So now we have a huge, new nationwide radar network with incredible capability. Things began to be seen on radar that had never been seen before. With time, they have almost all been fully explained. Swarms of bees, clouds of dust, migrating birds, airliners, highway traffic, subtle atmospheric boundaries (fronts), inversions, hail "spikes", cloud layers, virga (evaporating rainfall) and sunrise/sunset returns are just a few examples of phenomena that were initially unexplained. Those are just the things that have made it through the signal processing intact. There is an array of other AP phenomena that occur purely due to the automatic processing of the return radar signal. These can occur due to noise/feedback within the system and improper application of clutter suppression and attenuation applications/algorithms, among other things.
RELATED ARTICLES Huge asteroid to miss earth Endeavour delayed again Chinese women in Space NASA delays Endeavour launch Endeavour poised for last liftoff Sky watchers are in for a treat this week, as a meteor shower showing remnants from Halley's Comet will pass through the inner solar system after a span of 25 years. The Eta Aquarid meteor shower is predicted to peak on early Friday morning (May 6), reports Fox News. Under ideal conditions (a dark, moonless sky) about 30 to 60 of these very swift meteors can be seen per hour. And with a new moon on May 3 this is one of those years when observing conditions will be perfect. The shower appears at about one-quarter-peak strength for about three or four days before and after May 6.