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National Oceanic and Atmospheric Administration

Wednesday, May 01, 2024 19:58:02

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
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Latest Observed
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R1-R2 --
R3-R5 --
S1 or greater --
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R1-R2 --
R3-R5 --
S1 or greater --
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R1-R2 --
R3-R5 --
S1 or greater --
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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

WSA-Enlil v2.0 now operational

WSA-Enlil v2.0 now operational
published: Thursday, June 13, 2019 19:53 UTC

SWPC is pleased to announce the successful implementation of the upgraded WSA-Enlil heliospheric model v2.0 (the first upgrade since the initial implementation in late 2011), effective with the 1400UTC model run on May 29. This upgrade provides improvements to the existing code base and anticipates the implementation of the Air Force Data Assimilative Photospheric Flux Transport (ADAPT) model in the near future. The most significant impact of this upgrade is a rescaling of the WSA inputs to more accurately describe the ambient solar wind conditions, and thus offering improved CME arrival time predictions. For more detailed information on the upgrade, please consult NWS Service Change Notice 19-36