Viewing archive of Tuesday, 5 August 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Aug 05 1234 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
05 Aug 2014	140	011
06 Aug 2014	140	007
07 Aug 2014	140	011

Bulletin

Flaring activity remains low. The strongest flare today was a C1.7 flare occurring in NOAA AR 2132 with peak time 11:30 UT. We expect further flaring at the C-class level, especially from NOAA AR 2130 and 2132, with a small chance for an isolated M-class flare. No earth-directed CMEs were observed since our last bulletin. Still under the influence of a coronal hole high speed stream, the solar wind speed has increased up to 450 km/s, while the total magnetic field strength is currently at 6.4 nT. Geomagnetic conditions remain unsettled (k up to 3). We expect a return to quiet conditions in the coming hours. On August 7 unsettled conditions may occur due to the possible arrival of another coronal hole wind stream.

Today's estimated international sunspot number (ISN): 092, based on 17 stations.

Solar indices for 04 Aug 2014

Wolf number Catania	///
10cm solar flux	139
AK Chambon La Forêt	017
AK Wingst	015
Estimated Ap	014
Estimated international sunspot number	099 - 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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