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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Nov 24 1219 UTC

SIDC Forecast

Valid from 1230 UTC, 24 Nov 2014 until 26 Nov 2014
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
24 Nov 2014173006
25 Nov 2014169007
26 Nov 2014165009

Bulletin

Five low-level C-class flares were observed over the last 24 hours. The largest was a C4.1 peaking at 11:04UT in NOAA 2217, which was also the source of 3 other C2 flares. One of these peaked on 23 November at 16:14UT and was associated to a non-Earth directed CME, first visible in LASCO at 16:24UT. NOAA 2216 produced the remaining C2 flare. The other regions were quiet, with NOAA 2209 still maintaining a weak delta spot in its trailing portion. More C-class flares are expected, with a chance on an isolated M-class flare. The IMF is directed away from the Sun, with Bz varying between -7 and +4 nT. Solar wind speed varied between 470 and 360 km/s and is currently near 400 km/s. The geomagnetic field was quiet to unsettled (K<3), and is expected to remain so, with an isolated active period possible.

Today's estimated international sunspot number (ISN): 077, based on 15 stations.

Solar indices for 23 Nov 2014

Wolf number Catania///
10cm solar flux173
AK Chambon La Forêt014
AK Wingst010
Estimated Ap009
Estimated international sunspot number054 - Based on 20 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

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

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