Viewing archive of Thursday, 7 March 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Mar 07 1248 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Warning condition

	10cm flux	Ap
07 Mar 2013	114	006
08 Mar 2013	116	007
09 Mar 2013	119	007

Bulletin

Solar activity has been low, no C-class flares in past 24h. Several ARs (especially NOAA ARs 1686 and 1689) have potential for C-class flaring, and 1686 has still low chances of producing M-class flares as it rotates over the west limb. A backsided halo CME was seen leaving the Sun on March 6 at 09:24 UT, and two slow west limb CMEs were also detected. None of these CMEs are expected to affect the Earth. Geomagnetic conditions have been quiet, a fast solar wind stream from a coronal hole may still arrive today, causing unsettled to active conditions.

Today's estimated international sunspot number (ISN): 041, based on 04 stations.

Solar indices for 6 Mar 2013

Wolf number Catania	///
10cm solar flux	114
AK Chambon La Forêt	005
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	051 - Based on 22 stations

Noticeable events summary

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

All times in UTC

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