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2013-05-18 03:42 UTC  UPDATE: G1 Now; Earth-Directed CME Expected May 19

[CME forecast to pass late on the 17th was detected at ACE around 0000 UTC May 18 (8 p.m. EDT May 17). G1 (Minor) Geomagnetic Storm conditions now occurring.]

Forecasters are anticipating the passage of a CME that left the Sun earlier today, to be around 1400 UTC (10 a.m. EDT) on May 19. Today Region 1748 erupted once again, this time an R1 (Minor) Radio Blackout, associated with the CME, at 0857 UTC (4:57 a.m. EDT). Their prediction is for Geomagnetic Storm category G2 (Moderate) activity to follow over the next 24 hours, persisting into May 20. The current Solar Radiation Storm is expected to stay at category S1 (Minor), although the proton flux may increase slightly with the passage of the shock driven by the CME. Watch for updates here.

The 2013 Space Weather Enterprise Forum (SWEF) will be held on June 4th in Silver Spring, MD. The National Space Weather Program members have organized an outstanding agenda with speakers from government, industry, and academia. For more information visit the SWEF website: http://www.nswp.gov/swef/swef_2013.html.

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