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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 22, 2017 16:37:03

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NOAA Scales mini

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Space Weather Conditions
24-Hour Observed Maximums
R
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S
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Latest Observed
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S
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R1-R2 --
R3-R5 --
S1 or greater --
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R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
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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

Announcing The New Experimental, 1D, Interpolated Geoelectric Field Model

Announcing The New Experimental, 1D, Interpolated Geoelectric Field Model
published: Thursday, November 02, 2017 19:02 UTC

SWPC is pleased to announce that the experimental, one-dimensional, interpolated Geoelectric Field model became publicly available on November 02, 2017, and is available at http://www.swpc.noaa.gov/products/experimental-geoelectric-field-1-minute.  This model is the result of a tri-agency effort between NOAA/SWPC, the USGS Geomagnetism Group, and NASA CCMC.  It combines information about ground level, time-varying magnetic fields together with available one-dimensional Earth-conductivity information to estimate regional geoelectric field levels on a 2 x 2 degree geographic grid over the lower 48 states.  The Geoelectric Field model provides near-real time estimates of the induction hazard to artificial conductors that result from geomagnetic activity. More details on this model are available at the web page listed above.