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Storm Category: G1 (Minor) to G3 (Strong)
Watch Begins: Tuesday, September 5, 2017
18:00 MDT

Duration: 48 Hours

Storm Watch Details:

•  After months of low solar activity, an Earth-directed Coronal Mass Ejection (CME) erupted from sunspot AR2673 on Sunday. This incoming gust of solar wind is expected to impact Earth’s magnetic field early Wednesday evening and could trigger G1 (Minor) to G3 (Strong) geomagnetic storm conditions, resulting in many hours of active auroras across the North and across Canada. Peak storm activity is expected to occur in the hours following the CME impact. The Space Weather Prediction Centre at the National Oceanic and Atmospheric Administration has issued a 48-hour G1-G3 storm watch that will take effect at 6 p.m. MT on Tuesday, (September 5).

Real Time Space Weather Websites:

SDO Solar Activity Data
Latest WSA/Enlil CME Arrival Time Predictions

Latest NOAA Alerts/Warnings
Current Northern Hemisphere Auroral Oval
Watch for CME Impact By Observing ACE Real Time Data