Solar Watch — October 04, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-10-04 16:00 UTC
UNSETTLED

Geomagnetic activity is currently unsettled with Kp levels hovering near the G1 storm threshold of 5.0. No significant X-ray flares have been detected, and solar activity remains moderate with an F10.7 flux of 134.0 sfu.

HMI Continuum Intensity

Visible light · 4 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
4.7
5 or above = storm

Geomagnetic
G0
24 h max: G1

X-Ray
A/B
quiet


⚠ Kp 5 (G1) reached · 4 more below
Next 24 h

Expect geomagnetic conditions to gradually subside over the next 24 hours as the current disturbance wanes. Kp levels are forecast to drop to 4.0 by 21:00 UTC and continue trending toward quiet levels by early tomorrow.

more

No major solar radiation or radio blackout events are anticipated.

🌌 Aurora

Aurora visibility is restricted to high latitudes.

more

Observers in northern Canada and Scandinavia may see intermittent displays, but significant mid-latitude sightings are unlikely given the current downward trend.

👁 Watch for

Monitor the Kp-index over the next 6 hours to confirm if the system sustains the current activity or successfully returns to quiet, nominal levels.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 134.0
sfu

Region Location Class Flares C/M/X
AR4548 S11E51 Hsx/A 0/0/0
AR4547 N15W33 Cro/B 0/0/0
AR4545 N20E20 Cro/B 0/0/0
AR4546 S19W74 Hrx/A 0/0/0
NOAA messages
2026-10-04 14:03  Kp 5 (G1) reached (ALTK05)
2026-10-04 11:07  Kp 5 (G1) expected (WARK05)
2026-10-04 08:01  Kp 4 reached (ALTK04)
2026-10-04 06:13  Kp 4 expected (WARK04)
2026-10-01 14:30  Electron flux F3 reached (ALTEF3)


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