NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, January 20, 2018 04:45:36

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) Geomagnetic Storm Watch Extended into 18 April 2017

G1 (Minor) Geomagnetic Storm Watch Extended into 18 April 2017
published: Wednesday, April 19, 2017 03:59 UTC

The G1 (Minor) geomagnetic storm watch currently in effect for today, 17 April 2017  (UTC Day), has been extended into 18 April due to the anticipated influence of an isolated, positive polarity, coronal hole high-speed stream. Stay tuned for updates!