Solar
FORECAST SOL: Normal green MAG: Disturbed red ION: Normal green
HomeSolarSolar ConditionsSummary and Forecast Wednesday, Feb 21 2018 05:03 UT
Solar Conditions

Summary and Forecast

Solar Summary

(last updated 20 Feb 2018 23:30 UT)

Activity 20 Feb: Very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 20 Feb: 70/5

Solar Forecast

(last updated 20 Feb 2018 23:30 UT)

21 Feb 22 Feb 23 Feb Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 69/3 69/3 69/3 COMMENT: Solar activity was Very Low on UT day 20 Feb. Currently there are no sunspots on the visible solar disc. Very Low levels of solar flare activity are expected for the next three UT days, 21-23 Feb. No Earth-directed CMEs were observed in the LASCO C2 coronagraph imagery for 20 Feb up to 20/1748 UT. The solar wind speed has decreased to slightly enhanced levels, decreasing from 530 to 430 km/s during the last 24 hours and is currently near 450 km/s. The IMF Bt ranged from 5 to 2 nT and its Bz component varied between -4 nT and +3 nT. During the next UT day, 21 Feb, the solar wind speed is expected to be near nominal to slightly enhanced levels.

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

go to top of page