Viewing archive of Sunday, 14 January 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jan 14 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 14 Jan 2018 until 16 Jan 2018
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
14 Jan 2018071012
15 Jan 2018070008
16 Jan 2018069006

Bulletin

There are presently no numbered sunspot regions on the visible side of the solar disk. There were no flares reported during last 24 hours and we do not expect any flaring activity in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons remained at the background level. The Earth is presently inside the fast solar wind associated with the coronal hole which reached central meridian in the morning of January 09. The present values of the solar wind speed and the interplanetary magnetic field magnitude are 580 km/s and 5 nT, respectively. The maximum value of the wind speed during last 24 hours was about 610 km/s and the Bz component of the interplanetary magnetic field had minimum value of about -12 nT. The arrival of the fast solar wind induced disturbed geomagnetic conditions, NOAA reported Kp=5 early this morning and local station at Dourbes reported only K=3. Presently geomagnetic conditions are quiet to unsettled and although intervals of active conditions are still possible, we expect mostly continuation of the quite to unsettled conditions in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 12 stations.

Solar indices for 13 Jan 2018

Wolf number Catania///
10cm solar flux071
AK Chambon La Forêt023
AK Wingst005
Estimated Ap005
Estimated international sunspot number000 - Based on 13 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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