Viewing archive of Sunday, 8 November 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Nov 08 1230 UTC

SIDC Forecast

Solar flares

C-class flares expected, (probability >=50%)

Geomagnetism

Minor storm expected (A>=30 or K=5)

Solar protons

Quiet

	10cm flux	Ap
08 Nov 2015	115	016
09 Nov 2015	117	035
10 Nov 2015	119	029

Bulletin

Only one C-class flare was observed during the period: a C2.5 originating south of NOAA 2449's trailing portion at 23:21UT. This active region is currently the most complex group on the solar disk. A filament has developed between NOAA 2448 and 2451, and also trailing NOAA 2448 and NOAA 2443. The other regions were stable and quiet. No earth-directed coronal mass ejections have been observed.

C-class flares are expected.

Quiet to active geomagnetic conditions were recorded in the aftermath of the passage of the coronal mass ejection (CME). Solar wind speed declined slowly from its initial 550 km/s to its current values near 460 km/s. Bz was near zero until about 19:00UT and after 07:00UT, while in between it was fairly positive with a maximum around +11 nT during the 00-02UT interval. It dipped again to -9 nT between 10:00 and 11:00UT.

Further quiet to active geomagnetic conditions are expected, until the arrival of the co-rotating interaction region and high speed stream associated with the northern coronal hole later today or tomorrow, which could produce minor storming episodes.

Today's estimated international sunspot number (ISN): 076, based on 16 stations.

Solar indices for 07 Nov 2015

Wolf number Catania	///
10cm solar flux	115
AK Chambon La Forêt	030
AK Wingst	035
Estimated Ap	038
Estimated international sunspot number	088 - Based on 18 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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