This is a very valuable tool, check out the integrated Space Weather Analysis System. This computer model tells us that we should expect a decent shock around April 10th.

The Sun is in the middle, yellow dot is Earth.

FILE REHOSTED HERE (click to animate):CCMC_ENLIL_070411.gif for people with corporate firewalls who don’t see an animate image above this thumbnail, you should email your IT department and request that they open port 8080 or try the alternative link here to find it yourself at http://iswa.ccmc.gsfc.nasa.gov/