Solar activity forecast for the period April 27 - April 28, 2024

Issued: 2024 April 26 17:00 UTC


Analysis from April 25/1700 UTC to April 26/1700 UTC:

Sunspot Regions on the Disk 26/1423 UTC (SDO Continuum): 13
The Largest Event: M1.4 from Region 3638 at 25/1712 UT
X-ray background flux (1.0-8.0 A) April 25: C3.1
Radio Flux 10.7 cm at 25/2300 UTC (Penticton): 167
Solar Wind Speed at 26/1645 UTC: 313.4 km/s, Density: 5.4 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 90, Class M: 45, Class X: 15, Proton: 15
X-ray background flux (1.0-8.0 A): in the range C1.0-C1.3
Radio Flux 10.7 cm: a fluctuation in the range 142-161

Vlastislav Feik
RWC Prague, Astronomical Institute, Solar Dept., Ondrejov, Czech Republic
e-mail: sunwatch(at)asu.cas.cz