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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Mar 09 1229 UTC

SIDC Forecast

Valid from 1230 UTC, 09 Mar 2014 until 11 Mar 2014
Brillamenti solari

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

10cm fluxAp
09 Mar 2014142010
10 Mar 2014140009
11 Mar 2014140004

Bulletin

There are currently 7 sunspot groups visible. They are small and stable, except for NOAA 1996 and NOAA 2002 who gradually gained some sunspot area and developed a small delta in their middle portion. Most flaring activity came from NOAA 2002, with at least 7 C-class flares and one M1-flare peaking at 23:41UT, the strongest event of the period. Based on the currently available imagery, none of the observed CMEs has an Earth directed component. The CME first visible in LASCO/C2 at 18:24UT on 8 March seems to be related to a backside event (coronal dimming near an active region). Eruptive flaring conditions are expected, with a small chance for an M-class flare. Over the last 24 hours, solar wind speed has gradually decreased to values near 350km/s, with Bz varying between -3nT and +3nT. A small coronal hole on the southern hemisphere reached the central meridian (CM) and may have a geomagnetic influence on 12-13 March. Geomagnetic conditions have been quiet. The coronal hole solar wind stream (CM passage 5 March) has not arrived yet. A local active geomagnetic episode remains possible.

Today's estimated international sunspot number (ISN): 083, based on 16 stations.

Solar indices for 08 Mar 2014

Wolf number Catania///
10cm solar flux///
AK Chambon La Forêt///
AK Wingst004
Estimated Ap003
Estimated international sunspot number084 - Based on 22 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
08232623412350----M1.4--/2002

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

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