Viewing archive of Thursday, 19 July 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Jul 19 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
19 Jul 2018	071	008
20 Jul 2018	070	012
21 Jul 2018	069	008

Bulletin

There are presently no sunspot groups observed on the visible side of the Sun, and accordingly there was no flaring activity during last 24 hours. No Earth directed CMEs were observed, and the solar protons remained at the background level.

The Earth is still inside the slow solar wind with the speed of about 370 km/s. The interplanetary magnetic field magnitude is presently 4 nT. The increase of the solar wind speed, associated with patchy equatorial coronal hole that reached central meridian on July 16, might be expected in the morning of July 20. The unsettled to possibly, but not very probably, short interval of active conditions might be induced with the expected arrival of the fast solar wind.

Today's estimated international sunspot number (ISN): 000, based on 25 stations.

Solar indices for 18 Jul 2018

Wolf number Catania	000
10cm solar flux	071
AK Chambon La Forêt	007
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	000 - Based on 27 stations

Noticeable events summary

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

All times in UTC

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