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

Issued: 2026 April 01 17:00 UTC


Analysis from March 31/1700 UTC to April 01/1700 UTC:

Sunspot Regions on the Disk 01/0923 UTC (SDO Continuum): 12
The Largest Event: C5.3 from Region 4409 at 01/1348 UT
X-ray background flux (1.0-8.0 A) March 31: B8.2
Radio Flux 10.7 cm at 31/2300 UTC (Penticton): 141
Solar Wind Speed at 01/1150 UTC: 429 km/s, Density: 6.4 p/cm^3


Forecast:

activity level will be low to moderate
Event probabilities: Class C: 99, Class M: 45, Class X: 05, Proton: 01
X-ray background flux (1.0-8.0 A): in the range B6.8 - B8.5
Radio Flux 10.7 cm: a fluctuation in the range 140-150

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