Solar Watch — April 29, 2026 | 06:00 UTC

☀ HELIOS SOLAR WATCH · 2026-04-29 04:00 UTC
Solar Activity Remains Moderate; Stable Conditions Persist
SOLAR: UNSETTLED
GEO: QUIET

Active Regions
7
X-Ray
A/B (quiet)

Geomagnetic conditions are currently quiet with a Kp-index near zero. Solar activity is characterized by steady, moderate flare production, primarily driven by AR4420.

HMI Continuum Intensity

HMI Continuum · Visible Light

SUVI 304 — Extreme UV

SUVI 304Å · Extreme Ultraviolet

R0
Radio Blackouts
24h max: R0

S0
Solar Radiation
24h max: S0

G0
Geomagnetic Storm
24h max: G0

Planetary Kp-Index
0.3
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
107.0
sfu · >150 = high activity

The Earth’s magnetic field is undisturbed, with the Kp-index holding at 0.3. The solar disk contains 31 active regions, with AR4420 identified as the primary source of recent M-class flare activity. F10.7 flux is measured at 107.0 sfu, indicating a moderate level of solar radio output consistent with typical levels for this phase of the cycle.

Key Metric

The 55% probability of M-class flares from AR4420 is the primary metric to monitor for potential short-wave radio interference on the sunlit side of Earth.

Geomagnetic activity is expected to remain in the quiet range for the next 24 hours, with the Kp-index peaking no higher than 1.3. Solar flare probability remains elevated for M-class events due to the magnetic complexity of AR4420, though X-class potential remains low.

🌌 Aurora Outlook

Aurora visibility is restricted to high-latitude polar regions. There is no expectation of mid-latitude aurora displays during this period.

Region Location Class Flares C/M/X
AR4424 N17W08 Eao/B 1/0/0
AR4427 S31E27 Axx/A 0/0/0
AR4420 N16W43 Fkc/BGD 10/3/0
AR4423 S06W26 Axx/A 0/0/0
AR4425 N05E22 Ekc/BD 4/0/0
AR4421 S12W30 Hrx/A 0/0/0
AR4428 S24E13 Cro/B 1/0/0
2026-04-27 01:06:25.970Space Weather Message Code: ALTTP2
2026-04-26 23:33:07.687Space Weather Message Code: WARK04
2026-04-26 23:17:50.840Space Weather Message Code: SUMXM5
2026-04-26 23:08:38.813Space Weather Message Code: SUM10R
2026-04-26 23:00:55.950Space Weather Message Code: ALTXMF

Monitor the magnetic complexity of AR4420, as any sudden evolution in its spot structure could increase the current 15% probability of an X-class solar flare.