Viewing archive of Saturday, 24 August 2024

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2024 Aug 24 1231 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
24 Aug 2024	233	007
25 Aug 2024	233	007
26 Aug 2024	233	011

Solar Active Regions and flaring

Solar flaring activity was high over the past 24 hours, with several M-class flares. The largest flare was a M5.1-flare, with peak time 20:12 UTC on August 23 2024, from NOAA AR 3800 (beta-gamma). There are currently 9 numbered active regions on the visible disk. The most complex active regions are beta-gamma (NOAA AR 3796, 3790, 3799, 3800 and 3801). The solar flaring activity is expected to be at moderate levels over the next 24 hours with C-class flares expected, M-class flares probable and a small chance of X-class flares.

Coronal mass ejections

The Coronal Mass Ejections (CMEs) detected in LASCO C2 data at 02:06 UTC on August 23 has been further analyzed. Although the bulk of the CME is directed to the west, an Earth-directed component may arrive at Earth on August 27. No other Earth-directed CMEs have been detected in the available coronagraph images.

Solar wind

The solar wind at the Earth remained slow over the last 24 hours. The solar wind speed was around 370 km/s and the interplanetary magnetic field was stable around 7nT. The Bz reached a minimum value of -8nT. Slow solar wind conditions are expected in the next 24h.

Geomagnetism

Geomagnetic conditions were globally and locally quiet to unsettled (Kp 3+ and K Bel 3). Quiet conditions are expected in the next 24 hours.

Proton flux levels

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold, and is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Today's estimated international sunspot number (ISN): 236, based on 14 stations.

Solar indices for 23 Aug 2024

Wolf number Catania	///
10cm solar flux	242
AK Chambon La Forêt	011
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	211 - Based on 23 stations

Noticeable events summary

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

All times in UTC

<< Go to daily overview page