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[KD0VE]

The sun takes about 27 days to rotate.  Do regions of enhanced solar activity last for one or more rotations?  If yes, can a ham expect that at least sometimes a particularly good period of propagation will reoccur 27 days later. Is an extended activity period predictable?

Thx to anyone thats been a ham long enough to experience 1 or more periods of enhanced solar activity that takes the time to offer advice.

KD0ZGW

[KC6RWI]

I check solar ham daily to see the latest activity, and there are reports about sunspots that may return, and also some commentary on daily events. Even educated speculation on coming events.
 
https://solarham.net

[WB8VLC]

Good luck on finding any info on this one, I have been trying to find info on my wife's 14 day solar rotation for over 30 years with no luck.

[AA6YQ]

The sun takes about 27 days to rotate.  Do regions of enhanced solar activity last for one or more rotations?  If yes, can a ham expect that at least sometimes a particularly good period of propagation will reoccur 27 days later. Is an extended activity period predictable?

Thx to anyone thats been a ham long enough to experience 1 or more periods of enhanced solar activity that takes the time to offer advice.

Yes, sunspots can last more than one solar rotation:

The lifetime of a sunspot, or of a sunspot group, varies from a few days to several months. Larger sunspots often are visible during several solar rotations, reappearing roughly every 27 days. For this reason, many terrestrial phenomena that are believed to be influenced by sunspots tend to recur at intervals of about 27 days.

Over the past two solar cycles, I have found that high levels of solar flux 27-30 days ago often predict high levels of solar flux over the next few days.

[W1VT]

https://www.wm7d.net/hamradio/solar/27d_forecast.shtml
NOAA solar forecast for the next 27 days.

[WA3SKN]

They have been trying to predict since day one of radio.
And they have gotten much better at it.  But there are still surprises.
Get on the air and take advantage of them!
73s.

-Mike.