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  1. G4 (Severe) Watch in Effect for 12 November | NOAA / NWS Space …

    Nov 13, 2025 · These Watches are in response to potential geomagnetic storm effects related to coronal mass ejections (CME) that have erupted from the Sun over the past several days. These events …

  2. Severe geomagnetic storm could make northern lights visible ... - CBS …

    Nov 12, 2025 · The National Oceanic and Atmospheric Administration on Tuesday issued a G4, or severe, geomagnetic storm watch in response to recent coronal mass ejections, or CMEs, from the sun.

  3. G4 Watch Continues into 13 November | NOAA / NWS Space Weather ...

    Nov 13, 2025 · G4 Watch continues into 13 November. We have seen the final CME arrive and are now waiting to see just how much magnetic energy exists within. We know the potential for another G4 …

  4. Severe (G4) Geomagnetic Storm Watch issued for today

    Nov 11, 2025 · A rare Severe (G4) Geomagnetic Storm Watch is in effect for Wednesday, November 12th, in response to a series of CME’s (Coronal Mass Ejections) set to impact Earth. Our Sun has …

  5. Severe geomagnetic storm could impact Earth late Tuesday, early

    Nov 11, 2025 · NOAA’s Space Weather Prediction Page says a G4 (Severe) Watch is in effect for November 12. “A coronal mass ejection (CME) is an eruption of solar material and magnetic fields.

  6. X5.1 solar flare, G4 geomagnetic storm watch - spaceweatherlive.com

    Nov 11, 2025 · This rightfully so prompted the NOAA SWPC to issue a G4 or greater geomagnetic storm watch for tomorrow as the cloud could impact our planet as early as 16 UTC on 12 November.

  7. Rare G4 Geomagnetic Storm Watch Brings Auroras Deep Into U.S. - MSN

    For skywatchers, the upside is dazzling: the aurora borealis could spill far beyond its usual polar haunts, with forecasts suggesting visibility as far south as Alabama and northern California....

  8. Rare G4 geomagentic storm watch; here’s what experts have to say

    May 10, 2024 · For the first time since 2005, a G4 geomagnetic storm watch has been issued by NOAA’s Space Weather Prediction Center.

  9. G4 Watch Issued - WPBF Channel 25

    May 10, 2024 · As a result, a rare severe G-4 geomagnetic storm watch goes into effect Friday evening through Sunday. Coronal mass ejections are explosions of plasma and magnetic fields from the sun’s...

  10. G4 (Severe) Storm Watch for 10-11 October | NOAA / NWS Space …

    Oct 11, 2024 · There is potential to reach G4 (Severe) upon arrival of this CME and throughout its passage. We won’t know the characteristics of the CME until it arrives 1 million miles from Earth and …