ALERTA NOAA - Tormenta Geomagnética Categoría G3

Space Weather Message Code: WARK07
Serial Number: 60
Issue Time: 2015 Sep 20 0721 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2015 Sep 20 0720 UTC
Valid To: 2015 Sep 20 1200 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme

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