Solar activity forecast for the period May 09 - May 10, 2026

Issued: 2026 May 08 17:00 UTC


Analysis from May 07/1700 UTC to May 08/1700 UTC:

Sunspot Regions on the Disk 07/1623 UTC (SDO Continuum): 6
The Largest Event: C6.0 from Region 4433 at 07/1757 UT
X-ray background flux (1.0-8.0 A) May 07: B6.6
Radio Flux 10.7 cm at 07/2300 UTC (Penticton): 116
Solar Wind Speed at 08/1645 UTC: 546.8 km/s, Density: 2.6 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 99, Class M: 45, Class X: 15, Proton: 15
X-ray background flux (1.0-8.0 A): in the range B5.5 - B5.9
Radio Flux 10.7 cm: a fluctuation in the range 110-115

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