NoVa Bass Fishing

I am fishing my first tournament tonight on Lake Anna in Mineral, Virginia. The pattern we've been on in practice the past two weeks is 5" wacky rigged senkos off of grass lines, frogs in some weeds, and flipping docks with jigs. We've done really well in the past two weeks with water temps in the high 80s, but a small storm and a cold front came through last night and the fishing was really slow this morning. Water temps are in the low 80s now, and there is a constant light rain. We had 12 fish yesterday morning, with a couple 2 pounders and some 3s, but this morning we only had three on the same pattern, but nothing over 2 lbs. We are not sure what adjustments we have to make to be successful tonight. We would appreciate any help, and as soon as possible. We take the water at 6:30 tonight. We would also just like the knowledge for future fishing as well. So any information on fishing after storms or cold fronts would be greatly appreciated. Thank you!