NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, July 29, 2025 13:52:26 UTC

Main menu

NOAA Scales mini

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 Storms in Progress, G2-Moderate Possible

G1-Minor Geomagnetic Storms in Progress, G2-Moderate Possible
published: Saturday, August 29, 2015 22:28 UTC

G1-Minor geomagnetic storm levels are still in progress as effects from the coronal mass ejection (CME) continue to influence the Earth's magnetic field. A G2-Moderate geomagnetic storm warning has also been issued for the latter half of the UTC day for August 28th, 2015. Stay tuned for updates!