UPDATE: see my animation of NASA solar forecasts since 2004 below.
WUWT Commenter J Gary Fox writes:
The solar cycle 24 predicted sunspot maximum has been reduced again – predicted peak down to 59 Max. (1/3/11) http://solarscience.msfc.nasa.gov/predict.shtml
This will be at the level of the Maunder Minimum of 1675 -1715.
Previous NASA predictions below:
- 2010 October: Predicted peak 60-70
- 2009 May 29: predicted peak: 80-90 range
- 2009 Jan 5: predicted peak: 100-110 range
- 2008 Mar 28: predicted peak: 130-140 range
From the NASA page:
Current prediction for the next sunspot cycle maximum gives a smoothed sunspot number maximum of about 59 in June/July of 2013. We are currently two years into Cycle 24 and the predicted size continues to fall.
Here’s what the prediction looked like in March 2009:
Here’s an animation showing all of the prediction graphs from NASA that we have thus far:
Ira Glickstein did a guest post here a few days ago that outlines a lot of the changes in the forecast over time. It is well worth the read.