Viewing archive of Saturday, 12 July 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Jul 12 1215 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
12 Jul 2014	145	009
13 Jul 2014	135	016
14 Jul 2014	130	006

Bulletin

The background of the X-ray flux has decreased below the C-level. Four C-class levels erupted from NOAA AR 2109, 2113 and new region 2117. NOAA AR 2117 has emerged near the center of the solar disk. No new Earth- affecting CMEs were observed. Flare activity at the C-level is expected. Solar wind speed is stable around 370-380 km/s, as measured by ACE. The magnitude of interplanetary magnetic field reached a maximum of 6 nT with a Bz component fluctuating between -6 and +4 nT. Geomagnetic conditions have been quiet to unsettled and are expected to remain so till the arrival of a glancing blow of the July 9 CME. Active conditions are possible from the UT morning of July 13.

Today's estimated international sunspot number (ISN): 092, based on 10 stations.

Solar indices for 11 Jul 2014

Wolf number Catania	///
10cm solar flux	166
AK Chambon La Forêt	010
AK Wingst	008
Estimated Ap	006
Estimated international sunspot number	112 - Based on 15 stations

Noticeable events summary

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

All times in UTC

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