Navigraph? That's used for navigational data, like...to be used for departures and approaches, but I can't imagine it has even the slightest thing to do with weather. So I gues my answer is...no, it doesn't need to be updated regarding a database. It only needs updating in case there are program specific updates (fixed bugs and so on)

There is a flight planner built into AS2012 but it doesn't recognise fixes anyway so Navigraph type updates for it aren't required.

Thanks youFranxisco Mateos

Thinking about getting Active Sky 2012. Wondering about performance on a PC with:Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost)ASUS P8P67 DELUXE (REV 3.0) LGA 1155 Intel P67G.SKILL Ripjaws Series 4GB 240-Pin DDR3 SDRAM (total 16 Gig)COOLER MASTER Silent Pro Gold Series RSA00-80GAD3-US 1000W 5 year EVGA 01G-P3-1561-AR GeForce GTX 560 Ti FPB (Fermi) 1GBWestern Digital Caviar Black WD1002FAEX 1TB 7200 RPMCOOLER MASTER Hyper 212 Plus RR-B10-212P-G1ASUS Asus VG236H 23" 2ms 1920x1080 Full HD 120Hz 3D multimedia Height & Swivel AdjustableWideScreen LCD Monitor w/nVidia 3D Vision Kit hard bundleSee any issues?????Thank you,Bill