Solar activity is currently quiet but poised to shift as Earth moves toward a period of G2-level geomagnetic disturbance. We expect a rapid escalation in Kp-index values beginning in the next few hours.
⚠ Electron flux F3 reached · 4 more below
Geomagnetic conditions will transition from quiet to active throughout the evening. We expect Kp levels to climb steadily, reaching G1 status by late tonight and likely peaking at G2 (Kp 5.67) by early tomorrow morning, August 28.
Aurora visibility for mid-latitudes (40-60°N) is low at the moment but will improve significantly starting late this evening.
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Observers in northern tiers should prepare for potential displays as the G2 storm threshold is crossed overnight.
Monitor the actual Kp-index readings over the next 6-8 hours to confirm if the forecasted G2 conditions manifest as expected.
▸ Detailed readings
R0
(24 h max R0)
S0
(24 h max S0)
104.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4518 | N07E30 | Bxo/B | 0/0/0 |
| AR4519 | N27E40 | Axx/A | 0/0/0 |
| AR4517 | N10W45 | Dso/B | 0/0/0 |
| AR4515 | S07W19 | Hsx/A | 0/0/0 |
| AR4513 | N04W32 | Dac/BGD | 5/0/0 |
Helios Observer · Data: NOAA SWPC · updated every 12 h