NOAA warns of possible G2 geomagnetic storms Sept. 13–14 from large coronal hole — monitor satellites, GNSS and HF comms

NOAA forecasts potential G2-class geomagnetic storms on Sept. 13–14 after a large coronal hole sent fast solar wind toward Earth. Operators should monitor for satellite anomalies, GNSS degradation and HF radio interruptions that can affect navigation, communications and spacecraft in low Earth orbit.

Discovered 2025-09-12T05:39:43.183331-07:00 | 2025-09-12T05:39:43.183331-07:00

Briefing

What Hype is tracking

  • A NOAA advisory for a possible G2 geomagnetic storm on Sept. 13–14 signals elevated risk of satellite charging, GNSS errors and HF comms outages that can disrupt navigation, surveillance and beyond-line-of-sight communications.

  • The alert precedes planned solar- and space-weather monitoring launches, underscoring the need for better forecasting: see the upcoming Sept. 23 NASA/NOAA launch of three Sun-monitoring spacecraft and related mission readiness updates (IMAP, Carruthers and SWFO‑L1).

  • This event follows recent efforts to map solar-wind interactions (NASA's TRACERS), highlighting persistent operational exposure for LEO satellites and aviation navigation systems and the strategic value of improved space-weather forecasts: TRACERS mission delivery and objectives.

Reported By

dailygalaxy.com watchers.news Space.com
Sources Tracked
3
First Seen
2025-09-12T05:39:43.183331-07:00
Latest Update
2025-09-15T11:36:20.319516-07:00
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Space

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