Solar Watch — August 04, 2026 | 06:00 UTC

☀ Helios Solar Watch · 2026-08-04 04:00 UTC
UNSETTLED

Geomagnetic conditions are currently unsettled with a Kp-index of 4.0, though levels are expected to trend toward quiet in the coming hours. Solar flare activity remains moderate with a significant probability of C-class events from the current population of active regions.

HMI Continuum Intensity

Visible light · 6 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
4.0
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Kp 4 expected · 4 more below
Next 24 h

Geomagnetic activity is forecast to diminish from Kp 4.0 to Kp 2.0 within the next 6 to 9 hours. Conditions will likely return to quiet levels by midday UTC, with no immediate expectation of geomagnetic storming.

🌌 Aurora

At a Kp of 4.0, auroras are unlikely to be visible at mid-latitudes, though high-latitude observers in polar regions may still catch minor activity.

more

As the Kp-index drops below 3.0, auroral displays will likely retreat further toward the poles.

👁 Watch for

Monitor AR4498 and AR4500 for any sudden increases in magnetic complexity, as these regions represent the highest probability for M-class flare activity in the next 24 hours.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 136.0
sfu

Region Location Class Flares C/M/X
AR4500 N18W12 Cso/B 0/0/0
AR4502 S06W10 Dao/B 0/0/0
AR4498 N14W17 Dsi/BD 3/0/0
AR4499 N04W51 Dai/B 0/0/0
AR4501 S07W53 Dso/B 0/0/0
AR4496 N04W77 Hsx/A 0/0/0
NOAA messages
2026-08-03 23:55  Kp 4 expected (WARK04)
2026-08-03 02:53  Kp 5 (G1) expected (WARK05)
2026-08-02 18:01  Kp 6 (G2) reached (ALTK06)
2026-08-02 17:48  Kp 6 (G2) expected (WARK06)
2026-08-02 17:12  Kp 5 (G1) reached (ALTK05)


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