Solar activity forecast for the period July 02 - July 03, 2026

Issued: 2026 July 01 17:00 UTC


Analysis from June 30/1700 UTC to July 01/1700 UTC:

Sunspot Regions on the Disk 01/1315 UTC (SDO Continuum): 4
The Largest Event: X1.1 from Region 4479 at 30/2050 UT
X-ray background flux (1.0-8.0 A) June 30: C1.4
Radio Flux 10.7 cm at 30/2300 UTC (Penticton): 204
Solar Wind Speed at 01/1645 UTC: 393.1 km/s, Density: 0.1 p/cm^3


Forecast:

activity level will be moderate
Event probabilities: Class C: 99, Class M: 65, Class X: 20, Proton: 20
X-ray background flux (1.0-8.0 A): in the range C1.0-C2.0
Radio Flux 10.7 cm: a fluctuation in the range 192-216

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