Topband: Big 160m openings just before K index spikes

[Bob Lawson N6RW]

Is it just my imagination or have others noticed big 160 meter openings 
- hours before big K index spikes?

It seems that several times, we have had big openings into Europe and 
Asia from out here in Arizona and my hopes of having a great opening the 
next night was ruined by a big geomagnetic storm. Last Saturday morning, 
the JAs were quite weak here.  Sunday morning, several Asians had good 
signals.  BD4WN was the loudest I'd ever heard him and JA3YBK was 10 
over 9 at sunrise until 15 minutes past sunrise.  He was still solid 45 
minutes after sunrise.  Sunday night, I heard the first EU Russian since 
getting on TB almost three years ago.  I was looking forward to a great 
post-contest Monday night and bang - the K index jumped up to 4 - just 
like a few weeks before.  I heard no Asian signals this morning and so 
far no EU on 160 tonight (Monday night).

73 all de Bob N6RW Prescott AZ