Lancaster University's Aurora Watch issued an alert on Tuesday that the Northern Lights would be clearly visible in the United Kingdom. Unfortunately, the alert was cancelled after the scientists determined that the data from one of their magnetometers was spurious. A surge in geomagnetic energy is indicative of auroras but this particular spike was likely caused by a lawnmower.
"We believe the interference was caused by University staff mowing the grass on a sit-on mower," Aurora Watch stated. "We'll work with the facilities team to try and avoid an incident such as this occuring in the future!"