Weather 2.0
Weather 2.0 is a mod that makes minecraft a lot more realistic. It adds localized weather instead of global. There's clouds that changes color depends on how close a raincloud is or a thundercloud. There's even special events in this modpacks.
There's nothing special with this modpacks without a lot better weathers. There's few items in the mudpack includes Weather station and Tornado siren.
Events:
Rain - Pretty common, doesn't harm anyone.
Thunderstorm - Uncommon, Thundering around the area and sometimes raining together.
Tornado - There's 5 classes of tornadoes, C1 C2 C3 C4 and C5. Tornadoes is destroying a lot. They pick up blocks high above the ground then throw it in the affected area. C1 is small tornadoes and C5 is huge tornadoes.
Cyclone - Tornadoes but a lot larger and less destructive. It takes up around 1 - 5 blocks but doesn't do any major destruction. They could be up to 200x200 blocks wide!
If there's Thaumcraft installed with this mod (only Thaumcraft 4) The localized rain will get combined with magic rain and acid rain.