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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2013 Nov 25 1213 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
25 Nov 2013	124	007
26 Nov 2013	122	007
27 Nov 2013	122	007

Bulletin

NOAA AR 1904 was responsible for most flaring activity yesterday, on November 24. Seven C-flares were attributed to this active region which is located in the NE. We expect a similar behaviour: C-flares and the possibility of an isolated M-flare. The solar wind speed is between 300 and 350 km/s. The total interplanetary magnetic field (IMF) is below 5 nT. This results in quiet geomagnetic conditions with the Kp and local K of Dourbes below 4. The small coronal hole (20 degrees N, front boundary around 20 degrees W, 10 degrees wide) might introduce a geomagnetic disturbance limited in strength and in time from late November 26 onwards.

Today's estimated international sunspot number (ISN): 029, based on 09 stations.

Solar indices for 24 Nov 2013

Wolf number Catania	///
10cm solar flux	127
AK Chambon La Forêt	004
AK Wingst	000
Estimated Ap	001
Estimated international sunspot number	052 - Based on 15 stations

Noticeable events summary

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

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