(Araucaria) Propagacao.

[DXer]

O hemisferio norte e o mais afetado. Nao vi a aurora borealis, estava 
nublado por aqui. Variacoes na rede eletrica acontecem principalmente em 
Quebec, devido as longas linhas de transmissao. Nada sobre satelites que 
tenham sido atingidos.

Algum efeito pronunciado no Brasil?

73 de Vince, VA3VF

Space Weather Message Code: WARK05
Serial Number: 1356
Issue Time: 2017 May 28 1443 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1355
Valid From: 2017 May 27 2204 UTC
Now Valid Until: 2017 May 28 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees 
Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of 
the U.S. such as northern Michigan and Maine.