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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, April 19, 2025 23:35:51

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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

SWPC now on Twitter as of 2 May

SWPC Twitter Information Announcement
SWPC now on Twitter as of 2 May
published: Monday, May 23, 2016 17:10 UTC

The Space Weather Prediction Center began use of Twitter on May 2nd as another social media outreach tool. Twitter, in addition to our continued use of Facebook, will be used as a means of informing the public about interesting or significant space weather events. Twitter, as with Facebook, will only be used by SWPC forecasters as time permits and mission priorities allow.  Please check our official website at: www.swpc.noaa.gov or subscribe to our SWPC subscription services at http://www.swpc.noaa.gov/content/subscription-services in order to receive the most timely information, forecasts, alerts, warnings, and watches. You may find us on Twitter at NOAA Space Weather @NWSSWPC.