Viewing archive of Friday, 31 August 2018

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2018 Aug 31 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
31 Aug 2018	068	007
01 Sep 2018	067	008
02 Sep 2018	067	006

Bulletin

Over the past 24 hours solar activity has been Low. No significant flares have been recorded. There are currently no ARs on the solar disk, although a new AR has reached the East solar limb, but appears quiet. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed has fluctuated between 350 and 400 km/s over the past 24 hours. The total magnetic field strength has been slowly increasing from around 2nT to 6 nT. The Bz component has fluctuated around 0, ranging between -1 and +3 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Small enhancements in geomagnetic activity may be experienced due to a region of patchy coronal hole that was located near disk centre a few days ago. Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 000, based on 17 stations.

Solar indices for 30 Aug 2018

Wolf number Catania	000
10cm solar flux	068
AK Chambon La Forêt	010
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	000 - Based on 39 stations

Noticeable events summary

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

All times in UTC

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