For more detailed information --------------------------------- See our full 3-day forecast here: geomag.bgs.ac.uk/data_servic… Track current geomagnetic activity levels here: geomag.bgs.ac.uk/data_servic…

Next 72hrs - ACTIVE. No coronal hole effects were observed yesterday but the solar wind speed is now starting to gradually increase. A glancing blow from two CMEs launched on the 25th Aug may arrive during the 28-29th. The combined effects could give ACTIVE to STORM periods.

Next 24hrs - ACTIVE. We await the arrival of a high-speed solar wind stream from a coronal hole. So far geomagnetic conditions are quiet, but geomagnetic activity could reach ACTIVE to STORM levels once the fast solar wind arrives.

Next 24hrs - QUIET (mainly). Quiet geomagnetic conditions are expected until the onset of a high-speed solar wind stream from a coronal hole which is expected to arrive during the 27th Aug. ACTIVE/STORM periods following this arrival.

Next 24hrs - QUIET. Some minor M-class flare were produced from active region 14513 over the past 24hrs. This region is in an Earth-facing position, however no Earth-directed CMEs have been observed.

Next 24hrs - QUIET. The solar wind returned toward background levels over the weekend. Solar activity is low and quiet geomagnetic conditions are anticipated.

Next 72hrs - QUIET. Solar wind speed is elevated due to CH effects but expected to gradually decline over the weekend. There remains a chance of some ACTIVE spells over the next 24 hours before conditions return to QUIET.

Next 24hrs - ACTIVE. Further enhancement in the already elevated solar wind speed is anticipated today due to the arrival of high-speed stream from a second CH and a possible glancing blow of a CME from 16-Aug. The combined impact of these could cause isolated STORM spells.

Next 24hrs - ACTIVE to STORM. The early onset of a high-speed stream from a CH has enhanced activity sooner than expected. This and the anticipated arrival of a second CH high-speed stream means similar conditions should persist, with chances of further STORM G1 spells.

Next 24hrs - ACTIVE. Solar wind speed is slightly above background levels following the arrival of the CME from 14-Aug. Further ACTIVE spells are expected as the effects of the CME wane.

Next 24hrs - ACTIVE to STORM. A CME associated with a filament eruption observed on 14-Aug is expected to arrive today. Geomagnetic activity levels up to STORM G2 are possible.

Next 72hrs-ACTIVE to STORM. Geomagnetic conditions are expected to become elevated today due to the anticipated arrival of a HS CH wind stream. Two CMEs were seen leaving the Sun this morning. Based on limited imagery these could arrive late Sunday or early Monday morning.

Next 24hrs - QUIET. Solar wind parameters are gradually returning to ambient levels in the wake of a weak CME passage. No significant enhancement in geomagnetic activity is expected today.

Next 24 hrs – QUIET to ACTIVE. The CME from the filament eruption on 8-AUG arrived late UT morning on 11-AUG. There was no significant increase in geomagnetic activity following impact. Further isolated ACTIVE spell is possible as CME effects wane.

Next 24 hrs – QUIET. Geomagnetic conditions are expected to remain QUIET throughout. There is a low chance that a CME could arrive towards the very end of the forecast period. Should this occur, isolated ACTIVE to STORM G1 intervals would be possible.

Next 72hrs - QUIET. Overall low activity is expected, although glancing impacts from CMEs observed on 3-4 Aug may bring some ACTIVE and brief STORM periods over the weekend.

Next 24hrs - QUIET. Solar wind remains at ambient levels and no major enhancements in geomagnetic activity are expected.

Next 24hrs - QUIET. Solar winds have now returned to background levels and overall low geomagnetic activity is anticipated.

Next 24hrs - QUIET. Effects of the recent CME passing are beginning to subside, although chances of brief ACTIVE intervals can be still anticipated today.