Solar
FORECAST SOL: Normal green MAG: Moderate yellow ION: Normal green
HomeSolarSolar ConditionsSummary and Forecast Thursday, Feb 23 2017 00:11 UT
Solar Conditions

Summary and Forecast

Solar Summary

(last updated 22 Feb 2017 23:30 UT)

Activity 22 Feb: Low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Feb: 83/24

Solar Forecast

(last updated 22 Feb 2017 23:30 UT)

23 Feb 24 Feb 25 Feb Activity Very low Very low Very low Fadeouts None expected None expected None expected 10.7cm/SSN 84/26 84/26 83/24 COMMENT: Solar activity was low on UT day 22 February. Region 2638 (N19E35) produced a C4.1 flare that peaked at 1327 UT. The solar wind speed increased from ~420 to ~470 km/s by 0500 UT and then showed a gradual decline back to ~420 km/s during the UT day today (22 February). The IMF Bt stayed close to 7 nT throughout the UT day, whereas IMF Bz varied mostly between +/-6 nT time during this time. The previously anticipated coronal hole effect has not started yet, but it is expected to start strengthening solar wind stream from some time today (23 February) and remain effective for the following few days. Very low levels of solar activity may be expected for the next 3 days (23-25 February) with a slight chance of C-class flares.

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

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