Summary and Forecast

Solar Summary

(last updated 22 Jun 2026 23:35 UT)

Activity 22 Jun: R0 Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Jun: 122/75

Solar Forecast

(last updated 22 Jun 2026 23:35 UT)

23 Jun 24 Jun 25 Jun Activity Low to moderate Low to moderate Low to moderate Fadeouts Possible Possible Possible 10.7cm/SSN 125/78 125/78 130/84 COMMENT: Solar activity on UT day 22-Jun remained at R0. There are currently five numbered sunspot regions on the solar disk. Active Region (AR) 4475 (S13E15, beta) is the newest, appearing within the last 24 hours. Solar flare activity is expected to be R1, chance R2 over 23-25 Jun. No Earth-directed CMEs were observed on 22-Jun. S0 solar radiation storm conditions were observed on UT day 22-Jun. S0 solar radiation storm conditions are expected over 23-25 Jun. The solar wind environment on UT day 22-Jun was near background levels. The solar wind speed ranged between 335 to 380 km/s. The peak total interplanetary field strength (IMF, Bt) was +7 to +1 nT. The north-south IMF component (Bz) was +4 to -5 nT. The solar wind environment is expected to remain mostly quiet over 23 Jun, with wind speeds beginning to increase over 24-25 Jun due to several coronal holes.

Solar Activity levels are explained in the SWS Solar Terrestrial Glossary.