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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2017 Mar 20 1230 UTC

SIDC Forecast

Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

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

Protoni solari

Quiet

	10cm flux	Ap
20 Mar 2017	071	009
21 Mar 2017	072	024
22 Mar 2017	073	024

Bulletin

There are currently no sunspots groups on the visible hemisphere of the Sun. In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Solar wind speed measured by DSCOVR varied between about 300 and 330 km/s in the past 24 hours, while the magnitude of the Interplanetary Magnetic Field (IMF) varied between about 1 and 5 nT. Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 1) were registered in the past 24 hours. Quiet to active levels (K Dourbes < 5) are possible on March 20, 21 and 22, with a chance for minor geomagnetic storm intervals (K Dourbes = 5), due to the expected arrival of a high speed stream from a positive equatorial coronal hole in the second half of March 20.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 19 Mar 2017

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	005
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	000 - Based on 22 stations

Noticeable events summary

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

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