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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 20, 2026 22:49:57

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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

News Archive

Previous SWPC news items.

DAP - temp Head Section

News Archive

sort descending Originally Posted
SWPC Management and Program Analyst position now posted on USAJobs Monday, January 29, 2024 - 15:30
SWPC Network Outage Wednesday, May 1, 2024 - 09:58
An announcement to take a survey of the new webpage SWPC New Website Survey Available Thursday, August 28, 2014 - 22:13
SWPC Twitter Information Announcement SWPC now on Twitter as of 2 May Monday, April 25, 2016 - 20:38
SWPC Data Center SWPC Operational in Boulder - January 21, 2016 Thursday, January 21, 2016 - 21:17

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