GEO: QUIET
9
A/B (quiet)
Geomagnetic conditions are currently unsettled but are expected to reach G1-G3 storm levels as the effects of a recent coronal mass ejection impact Earth’s magnetosphere. Solar activity remains moderate, with high-latitude aurora displays likely throughout the next 24 hours.
While current geomagnetic conditions are relatively quiet at Kp 2.3, the forecast predicts a sharp transition to active levels. The sun remains moderately active with nine sunspot regions present and an F10.7 solar radio flux of 148 sfu. We are currently tracking the arrival of a solar structure that will initiate a period of geomagnetic instability.
A projected Kp index of 6.67 is the most significant metric, indicating the high probability of a G3 (Strong) geomagnetic storm that may cause minor power grid fluctuations and satellite orientation irregularities.
Expect a rapid increase in geomagnetic activity over the next 18 hours, with Kp levels peaking near 6.67 (G3 storm) before settling into G1-G2 conditions. These conditions are anticipated to persist throughout the upcoming overnight period into June 9th.
Observers at mid-latitudes, particularly in Canada, Scandinavia, and the northern United States, should prepare for potential aurora visibility. The expected G2-G3 levels increase the probability of displays being visible further south than usual; monitor local sky conditions starting tonight.
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4465 | N11E73 | Dao/B | 3/0/0 |
| AR4464 | S12E24 | Dai/B | 0/0/0 |
| AR4463 | N17E23 | Hsx/A | 0/0/0 |
| AR4462 | N15W09 | Dsi/B | 1/0/0 |
| AR4461 | S21W09 | Bxo/B | 0/0/0 |
| AR4459 | N14W32 | Cso/B | 0/0/0 |
| AR4458 | S05W76 | Dso/B | 1/0/0 |
| AR4456 | N17W62 | Dai/B | 1/0/0 |
| AR4455 | N15W89 | Hsx/A | 0/0/0 |
Watch for sudden shifts in the interplanetary magnetic field (Bz component) which will determine the final intensity and duration of the geomagnetic storm as the solar disturbance makes full contact.