The Tinfoil Hat Boys Solar Alerts module for Joomla 1.5 is a custom HTML module that pulls current solar and geomagnetic field status messages and alerts; that are freely available from n3kl.org
The module comes pre-styled but you can, of course, modify the included CSS file. It has TOES: these are icons with links to Space Weather Information. The TOES may be turned off in the modules options if you wish. The module also has the option of enabling JCE popups.