Source: NASA Holes in the Sun Are Threatening to Throw Birds, GPS Off Course

Birds flying north for the spring and humans relying on global positioning satellites to navigate could get a little lost this weekend.

Three coronal holes spread across the sun are pointing at the Earth. As a result, a minor geomagnetic storm alert has been issued for Saturday by the U.S. Space Weather Prediction Center in Boulder, Colorado, and the Space Weather Operations Centre of the U.K. Met Office in Exeter.

Read More: http://www.bloomberg.com/news/articles/2016-04-01/holes-in-the-sun-are-threatening-to-throw-birds-gps-off-course