Coronal Mass Ejections
Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona.
NOAA Scales mini
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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
no data
S
no data
G
no data
Latest Observed
R
no data
S
no data
G
no data
| R1-R2 | -- |
|---|---|
| R3-R5 | -- |
| S1 or greater | -- |
|---|
G
no data
| R1-R2 | -- |
|---|---|
| R3-R5 | -- |
| S1 or greater | -- |
|---|
G
no data
| R1-R2 | -- |
|---|---|
| R3-R5 | -- |
| S1 or greater | -- |
|---|
G
no data
R1 (Minor) Radio Blackout Impacts
HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales
Navigation: Low-frequency navigation signals degraded for brief intervals.
near_sun
Solar Flares (Radio Blackouts)
Solar flares are large eruptions of electromagnetic radiation from the Sun lasting from minutes to hours.
F10.7 cm Radio Emissions
The solar radio flux at 10.7 cm (2800 MHz) is an excellent indicator of solar activity.
Solar EUV Irradiance
Solar Extreme Ultraviolet (EUV) is solar radiation that covers the wavelengths 10 – 120 nm of the electromagnetic spectrum.
