Skip to main content

Observations

Space Based Imaging

More data: SWAP, EUI

Ground Based Imaging

More: H-α, WL, Ca-IIK, Drawings

Ground Based Radio

More: ARCAS+HSRS, CALLISTO

Space Based Timelines

More data: LYRA, TSI

WDC Sunspot Index

More data: SILSO

Space Weather Services

Detections

Solar Map

Latest Alerts

None

No alerts since: 2026-07-07

Forecasts

  • Flare: M-class flares
    (≥50%)
  • Protons: Warning condition
    (increased activity)
  • Geomagnetic: Minor storm
    (A>=30 or K=5)
  • All quiet: False
  • Provisional SSN:

Solar Activity

URSIgram 2026-07-12

Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare identified. The largest flare was a M1.1 flare (SIDC Flare 8193) peaking on July 12 at 00:57 UTC, which was produced by SIDC Sunspot Group 909 (NOAA Active Region 4485). During the flare, the source region (SIDC Sunspot Group 909) of the flare had Beta-Gamma configuration of its photospheric magnetic field. A total of 5 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 909 (NOAA Active Region 4485) is the most complex group with its Beta-Gamma magnetic configuration, and it has produced a M-class flare over the past 24 hours. Solar flaring activity is expected to be low to moderate over the next 24 hours, with C-class flares expected, possibly M-class flares, and a very low chance for X-class flares. A coronal mass ejections (CME) was first observed in SOHO/LASCO-C2 images around 01:08 on Jul 12. It was associated to C5.9 flare (SIDC Flare 8192, S15 W66) peaking on Jul 12 at 00:57 UTC, which was produced by SIDC Sunspot Group 909 (NOAA Active Region 4485). Associated type IV radio burst was also detected during the flaring activity. This CME has a projected width of about 115 deg and projected speed of about 460 km/s, and it is expected to miss the Earth. No other Earth-directed CMEs were detected in the available coronagraph observations during the last 24 hour. SIDC Coronal Hole (CH) 172, spanning 9 S - 3 N (very small, positive polarity) has crossed the central meridian during July 11-12. The high-speed streams from this CH may enhance the solar wind environment near Earth on Jul 15. The greater than 10 MeV GOES proton flux was below the threshold level over the past 24 hours and it is expected to remain so for the next 24 hours. Any major eruption from the SIDC Sunspot Group 909 (NOAA Active Region 4485), during the next 24 hours, could be possibly associated with a proton event. The greater than 2 MeV electron flux, as measured by GOES-18 and GOES-19 satellites, predominantly remained above the 1000 pfu threshold level, except for a brief interval from around 08:00 UTC to 11:00 UTC on July 12. It is currently above the threshold level and is expected to remain so. The 24h electron fluence was at moderate levels and is expected to remain so.

Solar Wind

URSIgram 2026-07-12

Geomagnetic conditions were globally and locally at quiet to active conditions (NOAA Kp and K BEL 1 to 4), due to the arrival of high-speed streams (HSSs) either from the SIDC Coronal Hole 171 (very small, negative polarity) that crossed the central meridian during Jul 06-07 or from another SIDC Coronal Hole (CH) 171 (very small, negative polarity) that crossed the central meridian on July 09. We expect quiet to active conditions (K 1 to 4) in the next 24 hours unless glancing blow related to the Jul 09 CME (associated to a flaring activity produced by SIDC Sunspot Group 909 (NOAA Active Region 4485)) arrives late at Earth and enhances the geomagnetic conditions to minor storm level (K=5). Over the past 24 hours, the solar wind parameters were again enhanced due to the arrival of high-speed streams (HSSs) either from the SIDC Coronal Hole 171 (very small, negative polarity) that crossed the central meridian during Jul 06-07 or from another SIDC Coronal Hole (CH) 171 (very small, negative polarity) that crossed the central meridian on July 09. The solar wind speed ranged between 490 km/s and 595 km/s. The interplanetary magnetic field ranged between 3 nT and 9 nT. The North-South component (Bz) ranged between -7 and 5 nT. In the next 24 hours, we expect a gradual transition from fast to slow solar wind, unless glancing blow related to the Jul 09 CME (associated to a flaring activity produced by SIDC Sunspot Group 909 (NOAA Active Region 4485)) arrives late at Earth and enhances the solar wind parameters.

Research

News

WL7879

Large and larger

Two large sunspot groups, NOAA 4478 and NOAA 4479, have been dominating the sunspot and flare activity during the previous week.
GOESSUVIX1

A new kid in the X-class town

While NOAA 4479 is approaching the Sun's west limb merrily producing M-class flares, a new active region NOAA 4482 has rounded the Sun's southeast limb producing an X1.3 flare.
AIA131_X1

NOAA 4479 produces an X-class flare

After several days of development, NOAA 4479 finally produced an X1 flare late on 30 June.
 

Activities

Ground Observations

The SIDC monitors the level of solar activity from the photosphere to the corona with ground based instruments located in Uccle and Humain.

Read more

Space Instruments

To avoid the disturbing or blocking effect of the Earth atmosphere, EUV observations of the solar corona need to be made from space...

Read more

Space Weather & Climate

We monitor and forecast solar variability to provide information services  to society and industry about the influence of space weather and climate.

Read more

Data Processing & Distribution

Data processing is necessary to extract relevant information for research studies, whereas data distribution and visualization are part of ROB open data policy.

Read more

Modeling

Modelling of Solar phenomena allows scientists to test theories and to predict Space Weather phenomena and their impact on Earth.

Read more

 

Supporting Research

The SIDC shares and expands its expertise through interaction with both upcoming and experienced researchers.

Read more