NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 22, 2017 16:43:57

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

CME Influence Continues

CME Influence Continues
published: Sunday, September 14, 2014 02:12 UTC

G3 (Strong) geomagnetic storming was observed as a result of the arrival and influence of the second of the two expected coronal mass ejections (CMEs).  Earth remains under the influence of this CME and will continue to for the near term.  Although the magnetic field orientation overnight was not favorable for continued strong storming (Bz all northward in a technical sense, and shown here in this 24-hour ACE plot as the red line in the top panel above the dashed line), rotation of that field and continued storming is still possible throughout the passage of this CME.  Stay tuned for updates.