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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, November 21, 2024 21:13:24

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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
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R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
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

Boulder Magnetometer

Boulder Magnetometer plot

This plot provides SWPC forecasters with a near real-time view of the geomagnetic field fluctuations at the Boulder magnetometer station.

The Boulder Magnetometer provides one set of measurements of the Earth's geomagnetic field, used to provide details of the  surrounding space environment.

The Boulder Magnetometer has been in operation since 1961, by the USGS, and has provided a complete set of the magnetic field components D, H and Z since then. SWPC makes use of the data in it's daily forecast operations. A document of the early history of the site is available (USGS).