Viewing archive of Sunday, 14 August 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Aug 14 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
14 Aug 2016	091	007
15 Aug 2016	093	007
16 Aug 2016	095	007

Bulletin

Solar activity is low with no C-class flares reported during last 24 hours. All four active regions, presently observed on the visible side of the solar disc have simple configuration of their photospheric magnetic field (two have beta and two alpha configuration). We expect flaring on the B-class level with possible isolated C-class flares. A CME with angular width of about 100 degrees (speed 400 km/s) erupted off the north-east solar limb at 17:48 UT on August 13 (first seen by LASCO-C2), this is a backsided event that will not affect Earth. The solar wind speed is at 400 km/s, with interplanetary magnetic field of 4 nT. The fast solar wind associated with a low latitude coronal hole might arrive at the Earth within 24 h causing active geomagnetic conditions. Otherwise, quiet geomagnetic conditions can be expected.

Today's estimated international sunspot number (ISN): 058, based on 23 stations.

Solar indices for 13 Aug 2016

Wolf number Catania	///
10cm solar flux	091
AK Chambon La Forêt	009
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	056 - Based on 28 stations

Noticeable events summary

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

All times in UTC

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