📡 Space Weather
Updated: 05.10.2026 12:00 (10:00 UTC)
About HF guide
A quick-look HF propagation compass. SFI and Sunspots lift the ionosphere. K and A describe geomagnetic disturbance.
What to do now?
- High SFI + low K/A — try higher bands: 20 → 15 → 10 m
- Rising K/A — go lower: 40/60/80 m or digital modes
- MUF near band edge — timing matters, check hourly
Reading the KPIs
- SFI / SSN — higher = more ionisation, better high bands
- K / A — higher = more disturbance. K ≥ 4 means rough going
- Solar Wind — sustained fast wind raises K/A potential
- foF2 — F-layer vertical ceiling, strong day/night variation
- MUF — highest usable freq for ~3000 km. MUF ≈ 3 × foF2
Colour code
Good conditions
Fair / moderate
Disturbed
Poor / storm
Source: hamqsl.com (stored locally). foF2/MUF estimated from SFI if not in feed.
--:--:-- UTC
⚠
AURORA / GEOMAGNETIC ALERT
K=2 · A=36 — HF propagation disturbed. Favour lower bands.
▶
K=2 — geomagnetic disturbance. Favour lower bands (40/80 m), avoid polar paths.
Band conditions — now
closed
poor
fair
good
Live KPIs
click tile for 7d trend
▶ chart
92.00
Solar Flux
▶ chart
2
K-Index
▶ chart
36
A-Index
▶ chart
586.80
km/s
Solar Wind
▶ chart
55
Sunspots
▶ chart
3.7
MHz
foF2
▶ chart
11.1
MHz
MUF
Band Conditions
12m-10m
☀ Poor
🌙 Poor
17m-15m
☀ Fair
🌙 Fair
30m-20m
☀ Good
🌙 Good
80m-40m
☀ Fair
🌙 Good
VHF Phenomena
E-Skip · europe · Band Closed
E-Skip · europe_4m · Band Closed
E-Skip · europe_6m · Band Closed
E-Skip · north_america · Band Closed
vhf-aurora · northern_hemi · Band Closed
💡 Click any KPI tile to open a 7-day trend chart · ESC closes