I found the information below educational:

M-CLASS SUN RUPTION!

M CLASS SOLAR ERUPTION: Sunspot AR2816 erupted in the late hours of April 19 (2342 UT) producing a powerful M1 class solar flare. NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash. This is one of the most powerful eruptions of early solar cycle 25. A pulse of X-rays and ultraviolet radiation from the flare ionized the Earth's upper atmosphere, causing a shortwave radio blackout over the Pacific: Blackout Map. Navigators and radio amateurs in the area may have noticed unusual propagation conditions at frequencies below 10 MHz.

Chances are the explosion also hurled a Coronal Mass Ejector (CME) toward Earth. If so, he would likely arrive on April 22nd and 23rd. The jury has not yet decided. We will have to wait for more data from the SOHO coronagraph to confirm the CME. Stay tuned.

Source: https://www.spaceweather.com/