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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, August 21, 2017 16:09:35

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NOAA Scales mini

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Space Weather Conditions
24-Hour Observed Maximums
R
no data
S
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G
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Latest Observed
R
no data
S
no data
G
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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
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R
no data
S
no data
G
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Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
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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

phenomenon

Solar Wind
Solar Wind

The solar wind continuously flows outward from the Sun and consists mainly of protons and electrons in a state known as a plasma.

Total Electron Content
Total Electron Content

The Total Electron Content (TEC) is the total number of electrons present along a path between a radio transmitter and receiver.

Earth's magnetosphere

The magnetosphere is the region of space surrounding Earth where the dominant magnetic field is the magnetic field of Earth, rather than the magnet

Ionosphere

The Ionosphere, between 80 and ~600 km in the Earth’s upper atmosphere, is where solar radiation caused ionization creates a layer of electrons that can effect earth systems.

Galactic Cosmic Rays
Galactic Cosmic Rays

Galactic Cosmic Rays (GCR) are the slowly varying, highly energetic background source of energetic particles that constantly bombard Earth.

Solar EUV Irradiance

Solar Extreme Ultraviolet (EUV) is solar radiation that covers the wavelengths 10 – 120 nm of the electromagnetic spectrum.

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