Viewing archive of Thursday, 12 February 2026

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2026 Feb 12 1231 UTC

SIDC Forecast

Solar flares

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
12 Feb 2026	125	008
13 Feb 2026	121	009
14 Feb 2026	117	007

Solar Active Regions and flaring

Solar flaring activity was moderate over the past 24 hours, with 2 M-class flares identified. The largest flare was a M1.4 flare (SIDC Flare 7016) peaking on February 11 at 13:12 UTC, which was produced by SIDC Sunspot Group 784 (NOAA Active Region 4366). The second largest flare was M1.4 flare (SIDC Flare 7022) peaking on February 12 at 02:40 UTC probably produced by SIDC Sunspot Group 784 after it passed the West limb rotating off the visible solar disk. A total of 7 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 790 (NOAA Active Region 4373) was the most magnetically complex (Beta) region on disk. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares likely and a small chance for M-class flares.

Coronal mass ejections

No Earth directed Coronal Mass Ejections (CMEs) were observed in the past 24 hours.

Solar wind

Slow solar wind conditions were recorded over the past 24 hours. The solar wind speed ranged from 371 km/s to 480 km /s. The total interplanetary magnetic field ranged from 4 to 8 nT, with the Bz reaching a minimum of -7 nT. The phi-angle was mainly in the negative sector (directed towards the Sun), with periods in the positive sector. In the next 24 hours a slow solar wind regime is expected.

Geomagnetism

The geomagnetic conditions reached active condition globally and locally (Kp 4 & K BEL 4) in the last 24 hours. Quiet to unsettled conditions are expected in the next 24 hours.

Proton flux levels

The greater than 10 MeV GOES proton flux was at background levels and is expected to remain at background levels over the next 24 hours.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux, as measured by the GOES-18 and GOES-19 satellites remained below the threshold level in the last 24 hours. The electron flux is expected to remain below the threshold in the coming 24 hours. The 24h electron fluence is presently at normal level, and it is expected to remain so in the next 24 hours.

Today's estimated international sunspot number (ISN): 085, based on 06 stations.

Solar indices for 11 Feb 2026

Wolf number Catania	///
10cm solar flux	129
AK Chambon La Forêt	023
AK Wingst	016
Estimated Ap	017
Estimated international sunspot number	095 - Based on 09 stations

Noticeable events summary

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

All times in UTC

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