Solar Watch — April 30, 2026 | 18:00 UTC

☀ HELIOS SOLAR WATCH · 2026-04-30 16:00 UTC
Quiet solar conditions persist with moderate flare potential
SOLAR: MODERATE
GEO: QUIET

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

Solar activity remains at low levels with the geomagnetic field currently stable. While the sun is quiet, a 55% probability of M-class flares indicates a non-negligible potential for sudden activity.

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
2.3
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
102.0
sfu · >150 = high activity

The planetary K-index is currently 2.3, indicating quiet geomagnetic conditions with no significant disturbances. Ten active regions are visible on the disk, but their current magnetic complexity has only produced minor C-class flaring in the last 12 hours. The F10.7 solar radio flux is holding steady at 102 sfu, reflecting a period of moderate solar cycle baseline activity.

Key Metric

The 55% M-class flare probability is the most critical metric as it identifies a lingering risk of sudden solar eruptions despite the currently calm environment.

Geomagnetic conditions are expected to remain quiet to unsettled, with the Kp-index peaking near 2.67 by early tomorrow. No major solar radiation storms or significant radio blackouts are anticipated within the next 24 hours.

🌌 Aurora Outlook

Aurora visibility is not expected at mid-latitudes; observers should not anticipate significant displays. Activity is restricted to the high-latitude polar regions under typical conditions.

Region Location Class Flares C/M/X
AR4429 S04E35 Cro/B 0/0/0
AR4427 S29W00 Axx/A 0/0/0
AR4423 S10W53 Bxo/B 0/0/0
AR4428 S24W13 Dai/B 0/0/0
AR4425 N05W03 Ekc/B 0/0/0
AR4420 N16W70 Fkc/BGD 4/0/0
AR4424 N17W35 Eai/BGD 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 active region AR4424 for potential magnetic evolution, as its current classification remains susceptible to minor flare growth.