From NASA Mid-level Solar Flare Erupts from the Sun May 8, 2014
The bright light on the left side of the sun shows an M5.2-class solar flare in progress on May 8, 2014.This image, captured by NASA’s SDO, shows light with a 131 Angstrom wavelength, which highlights the extremely hot material in a solar flare and is typically colorized in teal. Image Credit: NASA/SDO› View full disk image
The sun emitted a mid-level solar flare, peaking at 6:07 a.m. EDT on May 8, 2014, and NASA’s Solar Dynamics Observatory, or SDO, captured images of it.
Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel.
To see how this event may impact Earth, please visit NOAA’s Space Weather Prediction Center at http://spaceweather.gov, the U.S. government’s official source for space weather forecasts, alerts, watches and warnings.
This flare is classified as an M5.2-class flare. M class flares are on the order of a tenth as strong as the most intense flares, the X-class flares.
From NOAA’s SWPC, metrics for April are in.
Sunspots are right about where the predictive line suggests.
Ditto for radio flux
And, the Ap magnetic index continues to bump along the bottom as it has done since the regime shift in October 2005, indicating a sluggish solar dynamo: