Viewing archive of Thursday, 7 May 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 May 07 1230 UTC

SIDC Forecast

Solar flares

Active (M-class flares expected, probability >=50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
07 May 2015	136	011
08 May 2015	140	007
09 May 2015	142	007

Bulletin

Solar activity continues to be dominated by NOAA ARs 2235 (Catania 51) and 2239 (Catania 54). The strongest flare was an M1.9, from AR 2239 peaking at 11:49 UT on May 6. A filament eruption to the east of NOAA AR 2235 created a partial halo CME (with angular width around 140 degrees and speed of 300 km/s), first seen by LASCO-C2 at 19:00 UT on May 6. This CME is mostly directed to the south, but it may have an Earth directed component, expected to arrive on May 10.

Active conditions (K=4) were observed yesterday locally in Belgium and minor storms (Kp=5) at planetary levels. The Earth is still under the influence of the CME from May 2 with magnetic fields slightly above 10 nT. If Bz turns to the south active conditions may occur again.

Today's estimated international sunspot number (ISN): 101, based on 21 stations.

Solar indices for 06 May 2015

Wolf number Catania	///
10cm solar flux	136
AK Chambon La Forêt	035
AK Wingst	028
Estimated Ap	029
Estimated international sunspot number	085 - 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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