Solar
FORECAST SOL: Normal green MAG: Normal green ION: Normal green
HomeSolarSolar ConditionsSummary and Forecast Tuesday, Jul 16 2019 16:13 UT
Solar Conditions

Summary and Forecast

Solar Summary

(last updated 15 Jul 2019 23:31 UT)

Activity 15 Jul: Very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 15 Jul: 67/0

Solar Forecast

(last updated 15 Jul 2019 23:31 UT)

16 Jul 17 Jul 18 Jul Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 67/0 67/0 67/0 COMMENT: Solar activity remained very low on UT day 15 July. The solar disk visible from the Earthside is spotless. There were no Earth-directed CMEs observed in the available coronagraph imagery. On UT day 15 July, the solar wind speed varied mostly between 330 km/s and 500 km/s and then gradually decreased to nearly 410 km/s by 2300 UT. During this period, the total IMF (Bt) varied mostly in the range 2.7-7 nT reaching 9.8 nT at 0820 UT. The north-south component of the IMF (Bz) varied mostly in the range +/-4 nT reaching -7.3 nT at 0852 UT. The particle density varied between 1 and 4 ppcc during most parts of this day. The solar wind stream may show some strengthening on UT days 16 and 17 July due to the influence of some scattered small negative polarity coronal holes. Very low solar activity is expected for the next 3 UT days,16-18 July.

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

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