Region 4436 Emits M5.7 Flare as 650 km/s CME May Brush Earth May 12-13
Updated
Updated · swpc.noaa.gov · May 11
Region 4436 Emits M5.7 Flare as 650 km/s CME May Brush Earth May 12-13
4 articles · Updated · swpc.noaa.gov · May 11
An M5.7 flare from Region 4436 erupted at 10/1339 UTC and was classified as an R2 moderate radio-blackout event.
A Type II radio sweep put the associated CME at about 650 km/s, but forecast modeling shows most of the ejected material passing well behind Earth's orbit.
Forecasters still cannot rule out a glancing blow or shock arrival late on May 12 into early May 13 UTC, leaving a limited chance of Earth effects.
The flare already caused radio-blackout conditions, and earlier reports said the disruption was centered over the Atlantic while any geomagnetic impact would likely be minor.
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