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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Aug 15 1243 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
15 Aug 2014	105	007
16 Aug 2014	105	007
17 Aug 2014	105	007

Bulletin

One C flare as well as several high B flares were registered during the past 24 hours. The C1.1 flare was released by NOAA AR 2139 and peaked at 12:00 UT on August 15. In the next 48 hours, eruptive conditions (C flaring) are likely, especially from NOAA AR 2141 and 2139. Over the past 24 hours, solar wind speed as observed by ACE varied between about 325 and 360 km/s, while the magnitude of the Interplanetary Magnetic Field (IMF) varied between 1.5 and 4.5 nT. Over the past 24 hours, geomagnetic conditions were quiet (K Dourbes between 1 and 2; NOAA Kp between 1 and 2). Quiet geomagnetic levels (K Dourbes < 4) are expected on August 15, 16 and 17.

Today's estimated international sunspot number (ISN): 068, based on 15 stations.

Solar indices for 14 Aug 2014

Wolf number Catania	///
10cm solar flux	103
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	004
Estimated international sunspot number	059 - Based on 21 stations

Noticeable events summary

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

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