NOAA SOLAR DATA | 2026-08-03 21:00:02 UTC
QUIET
MUF 23.6 MHz | S/N S1-2
126
SOLAR FLUX INDEX
GOOD
17
A-INDEX
QUIET
2
K-INDEX
QUIET
A0.0
X-RAY
NOMINAL
127.3
ELECTRON FLUX
ACTIVE
24.6
PROTON FLUX
ELEVATED
PARTICLE RADIATION
23.6
MHz
MAX USABLE FREQ
HF OPEN
G2
GEOMAG STORM
MODERATE
R0
RADIO BLACKOUT
NONE
NOAA STORM SCALES
G1
GEOMAG FORECAST
MINOR
R0
BLACKOUT FORECAST
NONE
24H FORECAST
HF BAND CONDITIONS
600m
89
DAY
GOOD
77
NIGHT
FAIR
160m
85
DAY
GOOD
75
NIGHT
FAIR
80m
83
DAY
GOOD
73
NIGHT
FAIR
40m
81
DAY
GOOD
72
NIGHT
FAIR
20m
76
DAY
FAIR
67
NIGHT
FAIR
10m
58
DAY
FAIR
48
NIGHT
POOR
6m
48
DAY
POOR
37
NIGHT
POOR
7-DAY HISTORY
SOLAR INDICES
PARTICLE FLUX
Data source: NOAA Space Weather Prediction Center • Algorithm by RigReference • Classic view & widget embed codes