Sun Fires Multiple Flares and CMEs, Possible Northern Lights This Weekend

Solar activity produced five M-class flares on April 23 and an X2.4 flare on April 24, and NASA's Solar Dynamics Observatory tracked a coronal mass ejection that may graze Earth; NOAA has flagged the potential for G1 geomagnetic storming on April 26.

Solar activity has increased over April 23–24 with a string of M-class flares followed by an X2.4 event on April 24. NASA's Solar Dynamics Observatory reported a coronal mass ejection (CME) in the wake of one of the M-class flares that appears to be headed toward Earth. Spaceweather.com and NOAA noted a chance of minor geomagnetic storming on April 26 if the CME grazes Earth's magnetic field. The article explains that flares and CMEs behave differently and that auroras are driven by particle clouds rather than flare radiation. Key developments: - Five M-class solar flares were recorded on April 23. - An X2.4-class solar flare occurred on April 24. - NASA's SDO tracked a CME following an M-class flare that is moving in Earth's direction. - NOAA and Spaceweather.com reported that isolated G1 (Minor) geomagnetic storm conditions are possible on April 26. - Real-time confirmation depends on DSCOVR solar wind measurements, which give roughly 30 minutes of lead time for forecasts. Summary: The recent sequence of flares and the glancing CME could lead to minor geomagnetic storming and auroral displays at high latitudes this weekend. NOAA has indicated isolated G1 conditions are possible on April 26. Final confirmation of any aurora activity will rely on in-situ solar wind data and subsequent NOAA forecasts.