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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Mar 19 1307 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
19 Mar 2014	135	003
20 Mar 2014	135	003
21 Mar 2014	135	003

Bulletin

There is ongoing C-flare activity. The source region is NOAA 2010 (S15E48 on March 19). We expect further C-flaring activity with a chance of M-flares of 30%. At the time of the C4.7 flare (March 18, peak 22:52UT) and the C1.8 (March 19, peak 03:44UT) a type II radio outburst was detected, which typically indicates that a coronal mass ejection is associated with the flare. Because of the position of the source region, the CME's are not expected to have an impact on the Earth. The solar wind has a speed below 400 km/s. The magnetic field vector changed pointing direction yesterday, March 18. A vague footprint of a coronal hole is visible in ACE data. Nevertheless, the geomagnetic conditions are quiet and are expected to stay quiet.

Today's estimated international sunspot number (ISN): 097, based on 18 stations.

Solar indices for 18 Mar 2014

Wolf number Catania	163
10cm solar flux	138
AK Chambon La Forêt	011
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	094 - Based on 18 stations

Noticeable events summary

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

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