Summary and Forecast

Solar Summary

(last updated 06 Nov 2026 23:30 UT)

Activity 06 Nov: R0 Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 06 Nov: 125/78

Solar Forecast

(last updated 06 Nov 2026 23:30 UT)

07 Nov 08 Nov 09 Nov Activity R1, chance R2 R1, chance R2 R1, chance R2 Fadeouts Possible Possible Possible 10.7cm/SSN 125/78 130/84 130/84 COMMENT: Solar flare activity was at the R0 level on UT day 06-Nov, with several C-class flares observed, the largest being a C5.6 flare from Active Region (AR) 4570 (S12E61, beta). There are five numbered regions currently visible on the solar disk. AR 4566 (S07E20, beta-gamma-delta) remains the largest and most magnetically complex, and showed both growth and development, predominantly in its intermediate spots. All other sunspots are either stable or in decay. R1, chance of R2 conditions are forecast over 07-09 Nov due to the size and magnetic complexity of AR 4566. S0 solar radiation storm conditions were observed throughout UT day 06-Nov. S0 conditions are expected over 07-09 Nov. There were no Earth-directed coronal mass ejections (CMEs) observed over UT day 06-Nov. A northwest-directed CME is visible in SOHO coronagraph imagery from 06/1524UT, however analysis indicates this is a farside event. The solar wind speed on UT day 06-Nov increased, ranging between 310 and 420 km/s, likely due to the initial effects of a coronal hole high-speed wind stream, and is currently near 410 km/s. The peak total interplanetary magnetic field strength (IMF, Bt) was 13 nT and the north-south IMF component (Bz) ranged from -9 to +10 nT. The solar wind speed is forecast to increase across 07-09 Nov, with the largest increase expected on 09-Nov, as high-speed wind stream effects from an elongated equatorial coronal hole persist.

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