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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2014 Apr 01 1239 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
01 Apr 2014	150	013
02 Apr 2014	152	022
03 Apr 2014	152	007

Bulletin

The Sun produced just a handful of low C flares over the past 24 hours, the strongest occurred in NOAA AR 2026 peaking at C3.6 level at 14:15 UT, March 31 and another C3.3 flare originated from NOAA AR 2022, peaking at 00:50 UT, April 1. Solar flaring activity is expected to remain at C level with only a small probability for M level flares. The solar wind speed is steady at around 400 km/s with the magnetic field just slightly higher than yesterday: between 4 nT and 7 nT. Geomagnetic activity was unsettled in the second half of March 31 later returning to quiet despite the anticipated arrival of the March 28 CMEs. Local K Dourbes is presently rising from quiet to unsettled levels. The coronal hole that passed the central meridian on March 28 may become geoeffective and further unsettled conditions to minor storm levels are expected when/if the CMEs of March 28 and March 29 arrive.

Today's estimated international sunspot number (ISN): 073, based on 19 stations.

Solar indices for 31 Mar 2014

Wolf number Catania	///
10cm solar flux	152
AK Chambon La Forêt	012
AK Wingst	006
Estimated Ap	008
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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