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Tuesday, September 30, 2025

Coronal Mass Ejection Causes Storm -- But I Still Hear DX in Hi7

 

So the A index is 27 and the K is 7.  That's pretty bad right? See below.  Lots of red.  Well maybe not so bad in the tropics.  This morning I could hear EA5JZ working a VK on 20 meter SSB.  And yesterday morning I worked a very strong VK3XXY, also on 20 meter SSB.  I note that the Space Weather Center warns (above) of "HF communication degradation at higher latitudes."  So maybe my location at 18 degrees north explains the openings. 

1 comment:

  1. Taking a quick look at the Aurora Forecast (https://www.swpc.noaa.gov/communities/aurora-dashboard-experimental) shows Au tonight (30 Sept) for the northern latitudes. For example, my relatives in Potsdam, NY (44.7° N) should be in for Northern Lights tonight with crystal clear skies (39F!). So, yes Bill, I think you are seeing the benefit of 18° N. Here at 40° N, it's poor propagation and probably no light show tonight.
    Maybe Jimmie Buffet had it right with "Changes in Latitudes, Changes in Attitudes"?--73!

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