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originally posted by: Rezlooper
originally posted by: GoOfYFoOt
I don't see any "movement". I just see some RADAR sites showing returns and then more sites showing returns...Could you highlight the movement for us?
Here is from friend, just messaged me
"hey tell them wen we had clicked the play button on the weatherbug radar everything was moving BUT the circles they were statioinary. i just asked my friend that her and i seen this and she remember we hit play"
I've seen those kind of spots before. They are the result of an Electromagnetic Storm. The Earth's gravity grabs the storm rays bends them around to the opposite side of the planet where they make landfall.
originally posted by: ignorant_ape
heres a idea for you :
did the uploader delete them himself to cause drama once the explaination that they were glitches was undeniable ?
Summary The weather pattern on November 6, 2007 was a classic scenario for the appearance of bright banding radar imagery. When combined with the discrete high elevation scans in a VCP 21, the result was a composite radar image that contained concentric bands of enhanced reflectivity. A bright band appeared in response to each radar beam scanning the melting level, observed on the sounding to be at approximately 5,000 feet. As the elevation of the scan increased, this bright band moved progressively closer to the radar station. At the four highest elevations (shown below), not only did the diameter of the bright band move closer to the station, the discrete nature of the scans produced very narrow rings of enhanced reflectivity.
originally posted by: Rezlooper
a reply to: hellobruce
Okay, the expert has arrived. The expert at what? Thread derailment tactics. First, attack the source. Second, claim there's nothing to see here, 'It's common, no big deal."
EDIT to ADD: Just seen your posts about Humana. That may be it then since the message I just referred to said he had an image that didn't belong to him. Maybe he has to crop that off the images and then repost them.
Migration is heating up across North America! With every night that passes, more and more birds are headed south.
The information plate on the right side of the image shows dBZ values and corresponding birds/km3 values. Dr. S. A. Gauthreaux of Clemson University, used counts of nocturnal migrants observed flying across the disk of the full moon to produce a conversion from dBZ to birds/km3. Each pixel on the image represents a volume of space equal to one cubic kilometer.
Interestingly, NEXRAD cannot distinguish between different types of precipitation, or even if targets are precipitation, birds, insects, or dust. Reflectivity and other NEXRAD images however, contain many clues about the nature of radar echoes.
By late August or early September, the martins begin their migration south, and then the roosting activity of other bird species nears its peak.
The unique doughnut pattern of these roost rings is the result of the martins departing their roosting site in all directions, roughly in equal densities. As they travel further from their roosting site and reach higher altitudes, they are detected by radar until they either rise above or drop below the radar beam.