NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, January 21, 2018 08:24:41

Main menu

NOAA Scales mini

minimize icon
Space Weather Conditions
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
close
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

G1 (Minor) Watch Issued for 30 April, 2016

G1 Watch Auroral Extent
G1 (Minor) Watch Issued for 30 April, 2016
published: Sunday, May 01, 2016 16:27 UTC

A G1 (Minor) geomagnetic storm watch has been issued for the 30 April, 2016 UTC day. Isolated periods of minor storming levels are likely due to the anticipated effects from an enhanced solar wind environment due to a negative polarity coronal hole high speed stream rotating into an Earth-connected position. Continue to monitor our SWPC website for updated information and forecasts.