The weather radar works perfect for me. Very accurate. 

Here's a site:

 

http://radar4pilots.com

 

 

Mike Doal

Of course it's accurate. ASN is deciding where any rain cells are and then passing the information to the 777 WXR for display. The radar returns should also line up with storm clouds ASN creates in FSX and ASN creates turbulence and windshear effects to match. Very strong effects in thunderstorms if you use 100% (I have mine turned down to 25%).

 

If you don't have ASN running nothing works in the 777 WXR system. Not even test mode, which is a bit of a shame.