Solar
FORECAST SOL: Normal green MAG: Normal green ION: Normal green
HomeSolarSolar ConditionsSummary and Forecast Sunday, May 19 2019 12:25 UT
Solar Conditions

Summary and Forecast

Solar Summary

(last updated 18 May 2019 23:30 UT)

Activity 18 May: Very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 18 May: 71/6

Solar Forecast

(last updated 18 May 2019 23:30 UT)

19 May 20 May 21 May Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 70/5 68/2 68/2 COMMENT: Solar activity was Very Low on UT day 18 May. There is currently one numbered sunspot region on the visible solar disk, AR2741, which is now located near the west limb of the visible solar disk. Very low solar activity is expected for the next 3 UT days, 19-21 May. No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraph imagery for UT day 18 May. During the last 24 hours, solar wind speed was mostly steady near 400 km/s. The observed weakly elevated speeds are in response to the recent CME activities. The total IMF (Bt) ranged from 4 nT to 6 nT. The north-south component of the IMF (Bz) ranged between +4 nT and -4 nT, without any significant periods of southward Bz. For the next 24 hours, the solar wind speed is expected to vary between the recently observed weakly elevated levels and background levels.

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

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