microrobert
07-23-2014, 08:33 PM
Massive Mayfly Emergence From the Mississippi River Caught on Radar (http://laughingsquid.com/massive-mayfly-emergence-from-the-mississippi-river-caught-on-radar/)
http://laughingsquid.com/wp-content/uploads/2014/07/mayflygif.gif (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
A mayfly emergence from the Mississippi River (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014) near and around La Crosse, Wisconsin (http://en.wikipedia.org/wiki/La_Crosse,_Wisconsin) on the evening of July 20th produced a massive result on radar.
Reports came in of swarms and piles — yes, piles — of mayflies gathering throughout the area. The National Weather Service’s La Crosse, Wisconsin Weather Forecast Office (http://www.crh.noaa.gov/arx) keeps track of such events that occur from Davenport, Iowa (http://en.wikipedia.org/wiki/Davenport,_Iowa) through St. Paul, Minnesota (http://en.wikipedia.org/wiki/Saint_Paul,_Minnesota).
The radar detected the flies about 845 pm, emanating from the river (the source) with echo values similar to that of light-moderate rain (35-40 dBZ). With a general south-to-north wind flow above the surface, the mayflies quickly moved north once in the air. As the flies dispersed moving north-northeast, they also gained altitude with some of the echo being detected as far north as Black River Falls and as high as 2500 feet above ground.
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly2-640x480.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly3-640x360.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly4-640x640.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly5-640x480.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayflygif.gif (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
A mayfly emergence from the Mississippi River (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014) near and around La Crosse, Wisconsin (http://en.wikipedia.org/wiki/La_Crosse,_Wisconsin) on the evening of July 20th produced a massive result on radar.
Reports came in of swarms and piles — yes, piles — of mayflies gathering throughout the area. The National Weather Service’s La Crosse, Wisconsin Weather Forecast Office (http://www.crh.noaa.gov/arx) keeps track of such events that occur from Davenport, Iowa (http://en.wikipedia.org/wiki/Davenport,_Iowa) through St. Paul, Minnesota (http://en.wikipedia.org/wiki/Saint_Paul,_Minnesota).
The radar detected the flies about 845 pm, emanating from the river (the source) with echo values similar to that of light-moderate rain (35-40 dBZ). With a general south-to-north wind flow above the surface, the mayflies quickly moved north once in the air. As the flies dispersed moving north-northeast, they also gained altitude with some of the echo being detected as far north as Black River Falls and as high as 2500 feet above ground.
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly2-640x480.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly3-640x360.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly4-640x640.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)
http://laughingsquid.com/wp-content/uploads/2014/07/mayfly5-640x480.jpg (http://www.crh.noaa.gov/arx/?n=mayflygeneral#July202014)