Weather Impacts for the Pacific Northwest This Week; Watching the Northeast U.S.

A series of Pacific fronts will bring periods of moderate rain, higher elevation snow, and gusty winds to the Pacific Northwest through this week. A more widespread precipitation event looks likely this weekend. In the Northeast U.S. a storm may bring gusty winds, low elevation rain, and high elevation snow Friday into this coming weekend. Read More >

Thousands of geese have started their migration north making their way into South Dakota. As these birds fly over radar sites they can often be detected. One particular radar signature sometimes termed a “roost ring” was easily seen in radar images on March 16. A “roost ring” appears as birds leave their roost and fly into the air. The ring expands until birds begin dispersing and foraging.

The radar loop below shows a “roost ring” near the Cottonwood and Twin Lakes area in Spink County just south of Redfield. Another less distinguished “roost ring” can be seen near the Clark and Hamlin County borders. The radar loop starts at 1:44 PM CDT and ends at 2:40 PM CDT and the yellow circles highlight the two areas of interest.

Here's a more recent example, from March 2018.

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Weather Impacts for the Pacific Northwest This Week; Watching the Northeast U.S.

NWS Doppler Radar Detects Geese Migration March 16th, 2009