SWeather — space weather and aurora forecasts

Space weather: 31 October, 00:37

Aurora in middle latitudes remains unlikely for now; chances near the Arctic Circle will rise in the coming nights, especially 31 October–1 November, when NOAA SWPC expects a minor G1 geomagnetic storm.

NOAA SWPC confirms only mild sector-boundary influence: Bz reached -8 nT, solar wind speed stayed low at 307–354 km/s, and the expected CH HSS arrival on 31 October–1 November should bring G1 before easing on 2 November. No CMEs were directed toward Earth’s magnetosphere; solar activity is very low with only a slight chance of C flares, and the >2 MeV electron flux should fall from its 30 October high peak to normal levels. IPG’s latest forecast covers only 29–30 October and is no longer current, while SIDC remains outdated (10 October). The IPG/NOAA difference in disturbance level cannot be checked for the current night because the IPG issue has expired.

Space weather: 31 October, 00:37

Aurora in middle latitudes remains unlikely for now; chances near the Arctic Circle will rise in the coming nights, especially 31 October–1 November, when NOAA SWPC expects a minor G1 geomagnetic storm.

NOAA SWPC confirms only mild sector-boundary influence: Bz reached -8 nT, solar wind speed stayed low at 307–354 km/s, and the expected CH HSS arrival on 31 October–1 November should bring G1 before easing on 2 November. No CMEs were directed toward Earth’s magnetosphere; solar activity is very low with only a slight chance of C flares, and the >2 MeV electron flux should fall from its 30 October high peak to normal levels. IPG’s latest forecast covers only 29–30 October and is no longer current, while SIDC remains outdated (10 October). The IPG/NOAA difference in disturbance level cannot be checked for the current night because the IPG issue has expired.