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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2016 Jul 26 1250 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
26 Jul 2016	074	007
27 Jul 2016	072	013
28 Jul 2016	070	013

Bulletin

Flaring activity has been very low, no C-class flares in past 24 h. The situation is not expected to change in the coming hours (the Sun is spotless).

Unsettled to active geomagnetic conditions were recorded on July 25, due to long lasting periods of negative Bz. Solar wind speed is currently at 360 km/s with interplanetary magnetic field magnitude of 4 nT. The arrival of a high speed stream from a northern coronal hole is possible in the coming 24 hours. In about 48 hours, other (equatorial) coronal hole will affect Earth. Active conditions expected.

Today's estimated international sunspot number (ISN): 000, based on 28 stations.

Solar indices for 25 Jul 2016

Wolf number Catania	000
10cm solar flux	074
AK Chambon La Forêt	020
AK Wingst	017
Estimated Ap	021
Estimated international sunspot number	000 - Based on 34 stations

Noticeable events summary

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

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