Strong low pressure brings another mass of birds to the Upper Midwest
Light trans-Gulf migration along the Texas and western Louisiana coast was followed by heavy nocturnal migration up through the middle of the U.S. (>25 dBZ). The most recent front moving across the Upper Plains and Midwest packed some serious storm activity which appears to have caused fallout conditions in its path. On the backside of the front migration was light to nonexistent, while farther to the east migration continued at light to moderate densities (5-20 dBZ). Light migration was also apparent up the Pacific from Arizona to Washington State.
Heavy migration continues through the Upper Midwest
No trans-Gulf migration was visible on the radar last night, while nocturnal migration proceeded at break-neck pace across the eastern half of the U.S. As a new set of low pressure cells approached from the Plains region, associated southerly winds triggered heavy migration up through the central region, including Wisconsin. Light migration was also evident up through interior California and into the Pacific Northwest.
Radar for 05-18-2013
Since I was ‘out of the office’ on this morning, the only content here is the radar.
Heavy migration into the Upper Midwest as May marches on
Trans-Gulf migrants arrived along the Louisiana and East Texas coasts yesterday afternoon, followed my heavy migration up through the Central and Southeastern U.S. High pressure over the Northeast suppressed any major nocturnal flight last night. Migrants continued to march north across the western U.S. although densities were considerably lower than in the east. Fallout potential exists for southern Minnesota and southwestern Wisconsin this morning as low pressure brought some heavy precipitation to the region early today.
It’s mid-May, which means all systems GO!
Migration was widespread yesterday, beginning with trans-Gulf movement hitting the TX/LA coast yesterday afternoon and followed by nocturnal migration across the eastern half of the U.S. and the Pacific Coast through the early morning hours. Strong westerly winds pushed birds to the Mid Atlantic coast and heavy storm activity over Texas and Oklahoma increased fallout potential for those area.