☀ Helios Solar Watch · 2026-10-20 16:00 UTC
QUIET
Geomagnetic activity is transitioning from quiet to unsettled as Kp levels rise. No significant radio blackouts or solar radiation storms are currently present.
Visible light · 4 active regions
Extreme UV · 304 Å
Kp Index
2.0
5 or above = storm
Geomagnetic
G0
24 h max: G1
X-Ray
A/B
quiet
⚠ SUM10R · 4 more below
Next 24 h
Geomagnetic activity is expected to peak between 18:00 UTC and 21:00 UTC, reaching Kp 4.67. Conditions are forecast to subside to Kp 3.33 by the start of the new day as the influence of the current solar wind structure wanes.
🌌 Aurora
Aurora visibility is restricted to high latitudes.
more
Observers at latitudes above 60°N may see faint auroral displays during the peak window this evening, but mid-latitude sightings are unlikely.
👁 Watch for
Monitor the geomagnetic index for any unexpected transition into G1 storm thresholds (Kp 5) during the 18:00-21:00 UTC window.
▸ Detailed readings
Radio blackout
R0
(24 h max R0)
R0
(24 h max R0)
Radiation
S0
(24 h max S0)
S0
(24 h max S0)
F10.7
108.0
sfu
108.0
sfu
| Region | Location | Class | Flares C/M/X |
|---|---|---|---|
| AR4560 | N13W13 | Dri/B | 0/0/0 |
| AR4557 | N06W40 | Cai/B | 7/0/0 |
| AR4551 | S15W70 | Eko/BG | 0/0/0 |
| AR4559 | S20W67 | Bxo/B | 0/0/0 |
NOAA messages
2026-10-19 09:09 SUM10R (SUM10R)
2026-10-18 17:24 Kp 20 possible (WATA20)
2026-10-16 19:39 Kp 4 reached (ALTK04)
2026-10-16 19:38 Kp 4 expected (WARK04)
2026-10-16 14:19 Electron flux F3 reached (ALTEF3)
Helios Observer · Data: NOAA SWPC · updated every 12 h