Eruptive Space Weather Events

Eruptive Space Weather Events

The sun can have an impact on things other than the weather. Communications equipment like Radio's and TV signals can experience interference due to solar flares like those that occured this early this week.

The following information was provided by NOAA National Weather Service (NWS) Space Weather Prediction Center

  • This x-ray flare was the largest in more than 4 years, since December 2006.
  • The active region had also produced an R2 (Moderate) Radio Blackout x-ray burst midday Sunday (1238 pm EST, February 13), also with an earth-directed CME.
  •        That x-ray flare, when it occurred, was the largest in more than one year.

 

  • Currently, there are three earth-directed CMEs en route from the Sun, with the expected arrival of the first on Thursday, February 17.
  • Additional geomagnetic storming, possibly reaching the G2 (Moderate) level, is anticipated on Friday, February 18.
  • NOAA Region 1158 remains volatile and is likely to produce more flares/CMEs until it passes to the far side of the Sun on Sunday, February 20.
  • This activity punctuates the early phase of the new Solar Cycle 24.

Impacts

  • A major airline has re-routed its aircraft away from the most northerly polar routes, in anticipation of disturbed space weather that may hamper vital communications.
  • Dayside High Frequency (HF) disruptions (on the side of the earth facing the sun) have been reported from the aforementioned radio blackout events.
  • Auroral activity may increase at higher latitudes by Wednesday or Thursday night, although the moon (which is full Thursday night) will make it more difficult to see any faint aurora.

Links for additional information

Our local Space Weather Page or

Current Solar Activity and Heliospheric Solar Energetic Particle (SEP) Conditions from the Space Sciences Laboratory at the University of California-Berkeley



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