Viewing archive of Saturday, 1 November 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Nov 01 1259 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
01 Nov 2014	118	010
02 Nov 2014	120	016
03 Nov 2014	120	013

Bulletin

The Sun produced three C-class flares, originating from Catania sunspot groups 2 (no NOAA numbering yet) and 3 (NOAA AR 2201). A prominence eruption occurred at the SE quadrant, starting at around 3:45 UT on November 1. No coronagraphic data are available yet to verify the direction of propagation of an associated CME. However, given the source location, any effect on Earth is unlikely. Further flaring activity at the C-level is expected from Catania groups 99 (NOAA AR 2202), 2 and 3. The interplanetary magnetic field magnitude reached a maximum of 16 nT and decreased again to about 10 nT. The Bz component was mainly positive. The solar wind speed has a value of about 520 km/s, with a maximum of about 580 km/s at 8:00 UT. Quiet to active conditions are expected, with limited chances for minor storm conditions due to CH high speed stream influences.

Today's estimated international sunspot number (ISN): 065, based on 18 stations.

Solar indices for 31 Oct 2014

Wolf number Catania	///
10cm solar flux	121
AK Chambon La Forêt	012
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

All times in UTC

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