Solar Watch — October 17, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-10-17 16:00 UTC
QUIET

Solar activity remains at very low levels with planetary geomagnetic conditions currently quiet at Kp 0.7. No significant space weather disturbances are anticipated over the next 24 hours.

HMI Continuum Intensity

Visible light · 3 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
0.7
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 4 reached · 4 more below
Next 24 h

Conditions are expected to remain quiet with Kp indices hovering between 1 and 3. No solar radiation storms or radio blackouts are forecast as flare probabilities remain negligible for M and X-class events.

🌌 Aurora

Aurora activity is currently restricted to high latitudes.

more

Observers in mid-latitudes (40-60°N) should not expect any visible auroral displays under the current stable conditions.

👁 Watch for

Monitor the magnetic evolution of AR4551 as it transits toward the solar limb; while currently quiet, any sudden increase in magnetic complexity could shift the flare probability.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 110.0
sfu

Region Location Class Flares C/M/X
AR4551 S15W32 Eki/BGD 2/0/0
AR4557 N17E01 Dai/B 0/0/0
AR4555 S07W84 Axx/A 0/0/0
NOAA messages
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)
2026-10-11 19:11  Kp 20 possible (WATA20)
2026-10-11 17:02  Kp 30 possible (WATA30)


Helios Observer · Data: NOAA SWPC · updated every 12 h