Solar activity forecast for the period June 02 - June 03, 2023

Issued: 2023 June 01 17:00 UTC


Analysis from May 31/1700 UTC to June 01/1700 UTC:

Sunspot Regions on the Disk 01/1423 UTC (SDO Continuum): 11
The Largest Event: M4.3 from Region 3323 at 31/2252 UT
X-ray background flux (1.0-8.0 A) May 31: C2.3
Radio Flux 10.7 cm at 31/2300 UTC (Penticton): 168
Solar Wind Speed at 01/1645 UTC: 433.8 km/s, Density: 0.6 p/cm^3


Forecast:

activity level will be moderate
Event probabilities: Class C: 99, Class M: 65, Class X: 15, Proton: 15
X-ray background flux (1.0-8.0 A): in the range C1.5-C2.5
Radio Flux 10.7 cm: a fluctuation in the range 158-162

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