Where you catch thundurus in Pokemon White?

Answer 1

This is what you do to catch the Pokemon Thunderus:

Once you have beaten the last gym, head up to the gate north of Opelucid City. The man behind the counter will stop you and tell you about a mysterious storm on route seven. Head to route seven.

You will pass a house, and an old lady will come out and tell you that you shouldn't be out in the storm, then bring you into her house for "yummy" soup. After that, leave the house, and head right. You will be stopped by Thunderus, you cannot battle it, until later. You will, however, have it in your pokedex.

Thunderus will show up on route 7 to route 13 in the evenings. TO FIND OUT WHERE THUNDERUS IS, GO TO ANY GATE TO ANY CITY, AND READ THE MOVING LETTERS. THEY SHOULD SAY: ROUTE 1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18: A VERY UNUSUAL THUNDERSTORM IS HAPPENING. Go to that route, an run around the grass, you can use a Max Repel, they don't repel Thunderus, and when you see the level 40 Pokemon, use a weak attack, and track it down again and again. Or use strong pokemon with False Swipe.

(OPTIONAL) Save and exit the game, then change the current time to 16:00. (unless it's already 16:00 or later) Then, go to the guard building between Castelia City and route 4, then run back and forth from the guard building to route 4 multiple times in the grass. It's still VERY hard to catch Thunderus, so try your best, and don't worry if you don't catch it or it faints. Just go to the GTS and trade someone or borrow it from a friend. THUNDERUS CAN RUN AWAY DURING BATTLE!!!!

TIPS ON CATCHING THUNDERUS:

1: Get a Watchog and raise it to level 41, that way it will be faster than Thunderus, and it will know Mean Look and Hypnosis. Use Mean Look to keep Thunderus from running away, then put it to sleep so it can't attack.

2: If you have a Raiku from the event, use that Pokemon, it's fast, it has good moves, and is a good level!

3: Try not to use things like potions, X whatevers, and other things. If you do, Thunderus will run away right after, and you'll have to find it all over again. Like Cheren says: "What a bother!"