Issued: 2024 April 18 17:00 UTC


Analysis from April 17/1700 UTC to April 18/1700 UTC:

Sunspot Regions on the Disk 18/1541 UTC (SDO Continuum): 14
The Largest Event: M2.2 from region 3638 at 18/0248 UT
X-ray background flux (1.0-8.0 A) April 17: C2.3
Radio Flux 10.7 cm at 17/2300 UTC (Penticton): 224
Solar Wind Speed at 18/1645 UTC: 327.9 km/s, density : 1.7 p/cm^3


Forecast:

Activity level will be: moderate - explanation
Event probabilities: Class C: 99%, Class M: 70%, Class X: 45%, Proton: 30%
X-ray background flux (1.0-8.0 A): in the range C1.9-C2.1
Radio Flux 10.7 cm: a fluctuation in the range 191-230

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