NOAA SOLAR DATA | 2026-05-08 11:00:02 UTC
QUIET
MUF 21.7 MHz | S/N S1-2
117
SOLAR FLUX INDEX
FAIR
7
A-INDEX
QUIET
2
K-INDEX
QUIET
B6.2
X-RAY
NOMINAL
163.3
ELECTRON FLUX
ACTIVE
12.7
PROTON FLUX
ELEVATED
PARTICLE RADIATION
21.7
MHz
MAX USABLE FREQ
HF OPEN
G0
GEOMAG STORM
NONE
R1
RADIO BLACKOUT
MINOR
NOAA STORM SCALES
G0
GEOMAG FORECAST
NONE
R0
BLACKOUT FORECAST
NONE
24H FORECAST
HF BAND CONDITIONS
600m
89
DAY
GOOD
78
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
50
DAY
FAIR
38
NIGHT
POOR
6m
49
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