Viewing archive of Tuesday, 8 July 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Jul 08 1237 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
08 Jul 2014	200	005
09 Jul 2014	200	014
10 Jul 2014	200	013

Bulletin

The strongest flare of the past 24 hours, a C4.0 flare peaking at 09:02 UT, originated from Catania sunspot group 16 (NOAA active region 2113). This region has grown in size and complexity. Catania sunspot groups 6 and 9 (NOAA AR 2108 and 2109) keep their delta component and retain their flaring potential with a moderate chance for M-class flares. Solar wind speed is between 290 to 350 km/s, as measured by ACE. The interplanetary magnetic field reached a magnitude of 10 nT with a fluctuating Bz. Geomagnetic conditions have been quiet and are expected to remain so until the arrival of a fast speed stream from a small coronal hole that is expected to result in active conditions on July 9-10.

Today's estimated international sunspot number (ISN): 144, based on 08 stations.

Solar indices for 07 Jul 2014

Wolf number Catania	266
10cm solar flux	198
AK Chambon La Forêt	014
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	151 - Based on 25 stations

Noticeable events summary

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

All times in UTC

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