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Strongest solar radiation storm since 2005

Date:
January 23, 2012
Source:
National Oceanic and Atmospheric Administration
Summary:
NOAA's Space Weather Prediction Center -- the nation's official source of warnings and alerts about space weather and its impacts on Earth -- has issued a watch for a geomagnetic storm associated with a bright flare on the sun Sunday evening (Jan. 22, 2012). The storm could arrive Tuesday morning, with possible impacts to navigation, the power grid and satellites.

GOES Solar X-ray Imager.
Credit: NOAA/National Geophysical Data Center

NOAA's Space Weather Prediction Center -- the nation's official source of warnings and alerts about space weather and its impacts on Earth -- has issued a watch for a geomagnetic storm associated with a bright flare on the sun Sunday evening (Jan. 22, 2012). The storm could arrive Tuesday morning, with possible impacts to navigation, the power grid and satellites.

Space Weather Prediction Center (SWPC) forecasters have also issued a warning for ongoing "strong" solar radiation storming. Radiation storms are a concern for astronauts, communications at high latitudes, satellites in space and rocket launches. Geogmagnetic storms (G-scale) and solar radiation storms (S-scale) range from 1 (minor) to 5 (extreme).

NOAA's space weather experts describe the event as the strongest radiation storm in more than six years.

Associated with Sunday's flare was a "coronal mass ejection," a burst of charged particles and magnetic field that streamed out from the sun at about four million miles an hour. The coronal mass ejection (CME) is heading toward Earth. NOAA's SWPC predicts it will trigger onset of a geomagnetic storm on Tuesday morning EST, with storm intensity likely to be moderate (G-2), possibly strong (G-3).


Story Source:

The above story is based on materials provided by National Oceanic and Atmospheric Administration. Note: Materials may be edited for content and length.


Cite This Page:

National Oceanic and Atmospheric Administration. "Strongest solar radiation storm since 2005." ScienceDaily. ScienceDaily, 23 January 2012. <www.sciencedaily.com/releases/2012/01/120123131125.htm>.
National Oceanic and Atmospheric Administration. (2012, January 23). Strongest solar radiation storm since 2005. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2012/01/120123131125.htm
National Oceanic and Atmospheric Administration. "Strongest solar radiation storm since 2005." ScienceDaily. www.sciencedaily.com/releases/2012/01/120123131125.htm (accessed July 23, 2014).

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