Solar Watch — September 10, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-09-10 04:00 UTC
QUIET

Geomagnetic activity remains at stable, quiet levels with the planetary K-index hovering near 2.7. Solar activity is characterized by a moderate F10.7 flux of 145 sfu and minor C-class flare production.

HMI Continuum Intensity

Visible light · 8 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
2.7
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 30 possible · 4 more below
Next 24 h

Geomagnetic conditions are expected to remain quiet to unsettled, with the Kp-index likely trending downward toward 2.3 over the next 24 hours.

more

No significant solar radiation storms or radio blackouts are anticipated as solar flare probabilities remain low.

🌌 Aurora

Aurora activity is expected to be limited to high-latitude regions.

more

There is no significant probability of mid-latitude sightings under current conditions.

👁 Watch for

Monitor the evolution of active regions as they rotate across the solar disk for any signs of increasing magnetic complexity that could lead to impulsive M-class flaring.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 145.0
sfu

Region Location Class Flares C/M/X
AR4524 N12W13 Hsx/A 1/0/0
AR4525 N11E04 Cro/B 0/0/0
AR4521 N09W53 Hsx/A 1/0/0
AR4528 S11E25 Hsx/A 1/0/0
AR4523 N10W42 Axx/A 0/0/0
AR4527 N04E09 Hsx/A 0/0/0
AR4529 N12E24 Hsx/A 0/0/0
AR4530 N19W07 Dro/B 0/0/0
NOAA messages
2026-09-09 21:01  Kp 30 possible (WATA30)
2026-09-09 05:38  Electron flux F3 reached (ALTEF3)
2026-09-08 17:51  Kp 5 (G1) reached (ALTK05)
2026-09-08 17:30  Kp 4 expected (WARK04)
2026-09-08 17:27  Kp 5 (G1) expected (WARK05)


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