Solar Watch — May 28, 2026 | 06:00 UTC

☀ HELIOS SOLAR WATCH · 2026-05-28 04:00 UTC
Solar activity remains quiet with moderate flaring potential from active regions.
SOLAR: MODERATE
GEO: QUIET

Active Regions
11
X-Ray
A/B (quiet)

Current solar conditions are quiet, with no geomagnetic storming present and F10.7 flux at a moderate 108 sfu. While current activity is low, there is a sustained 65% probability of M-class flares over the next 48 hours due to the presence of eleven active regions.

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
2.0
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
108.0
sfu · >150 = high activity

The Earth’s magnetosphere is currently stable with a Kp-index of 2.0. Eleven active regions are visible on the solar disk, with AR4446 and AR4454 showing complexity that warrants monitoring for potential eruptive activity. Current X-ray output remains in the A/B background range, indicating no significant immediate threat to radio communications.

Key Metric

The 65% probability of M-class flares is the primary metric, as it highlights a latent instability in the sun’s current active regions despite the present quiet conditions.

Geomagnetic conditions are expected to remain unsettled but calm, with Kp levels forecasted to drop to 2.0 by mid-day. While solar activity will likely stay in the low-to-moderate range, observers should prepare for potential isolated M-class flares which may cause brief, localized radio fades.

🌌 Aurora Outlook

Aurora visibility is not expected at mid-latitudes during this period. Activity is restricted to high-latitude regions, and even there, display intensity will likely remain minimal.

Region Location Class Flares C/M/X
AR4453 N11W63 Bxo/B 0/0/0
AR4455 N14E78 Hax/A 0/0/0
AR4454 S15E61 Axx/A 2/0/0
AR4452 N09W21 Cai/B 0/0/0
AR4449 S10E23 Hax/A 0/0/0
AR4448 S07E28 Cao/B 0/0/0
AR4447 S17W14 Dsi/B 0/0/0
AR4446 S16E30 Fko/BG 1/0/0
AR4443 S17W67 Hsx/A 0/0/0
AR4444 S21W09 Hsx/A 0/0/0
AR4445 N07W02 Axx/A 0/0/0
2026-05-27 23:47:33.327Space Weather Message Code: WARK04
2026-05-27 14:45:02.823Space Weather Message Code: SUMPX1
2026-05-27 05:47:17.563Space Weather Message Code: WARK04
2026-05-27 02:28:51.080Space Weather Message Code: SUMPX1
2026-05-27 02:27:49.300Space Weather Message Code: SUMPX1

Monitor AR4446 and AR4454 for any sudden growth in magnetic complexity, which would increase the likelihood of impulsive M-class flaring.