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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Mar 29 1234 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
29 Mar 2014	146	007
30 Mar 2014	143	007
31 Mar 2014	141	007

Bulletin

NOAA AR 2017 produced two M class flares (M2.0 peak 19:18 UT and M2.6 peak 23:51 UT on March 28). The flares were associated with two halo CMEs, the first one with speeds of 412km/s (first seen by LASCO-C2 at 20:00 UT) and the second one 557 km/s (at 23:58 UT). The combination of these CMEs may arrive to the Earth and cause up to minor storm conditions by 1 April around 05:00 UT. Geomagnetic conditions are quiet to unsettled, no disturbances are expected in the next 48h.

Today's estimated international sunspot number (ISN): 085, based on 20 stations.

Solar indices for 28 Mar 2014

Wolf number Catania	///
10cm solar flux	146
AK Chambon La Forêt	020
AK Wingst	009
Estimated Ap	009
Estimated international sunspot number	084 - Based on 22 stations

Noticeable events summary

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

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