Solar Watch — September 09, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-09-09 16:00 UTC
QUIET

Geomagnetic conditions are set to transition from quiet to active, with a G2 storm anticipated later today. While solar flare activity remains low, the solar flux is high at 211.0 sfu.

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: G2

X-Ray
A/B
quiet


⚠ Electron flux F3 reached · 4 more below
Next 24 h

Geomagnetic activity is forecast to rise sharply, reaching G1 levels by 18:00 UTC and peaking at G2 (Kp 5.67) by 21:00 UTC today. Conditions are expected to return to quiet levels (Kp 3.0) by 00:00 UTC on 10 September.

🌌 Aurora

Observers at mid-latitudes (40-60°N) should prepare for potential aurora visibility during the G2 peak between 18:00 and 23:59 UTC.

more

Optimal viewing conditions will occur in locations with dark, clear skies away from light pollution.

👁 Watch for

Monitor the arrival of the predicted geomagnetic disturbance after 18:00 UTC for potential sudden shifts in the interplanetary magnetic field.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 211.0
sfu

Region Location Class Flares C/M/X
AR4527 N03E08 Hsx/A 0/0/0
AR4529 N12E24 Hsx/A 0/0/0
AR4530 N19W07 Dro/B 0/0/0
AR4521 N09W54 Hsx/A 1/0/0
AR4523 N10W43 Axx/A 0/0/0
AR4524 N13W13 Hsx/A 1/0/0
AR4525 N11E03 Bxo/B 0/0/0
AR4528 S11E24 Hsx/A 1/0/0
NOAA messages
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)
2026-09-08 17:02  Kp 30 possible (WATA30)


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