they will die most likly, first off even if the water drains well and the soil is really soggy most plants tend to get root/stem rot expecially if they are tiny seedlings.

Just go get the shovel.
MagicGrow Reviewed by MagicGrow on . Help! it just rained and... Help! it just rained and my little seedlings are under 6 inches of water i checked em today and they looked perfectly healthy except for the fact that they are underwater, I mean I put them as seeds straight in the ground so they arnt floating or anything, how long will they last under there before they die! Rating: 5