The short answer is yes. If a creditor obtains a judgment against you, it can obtain a writ of execution to levy your bank account without prior notice to you. The bank account will be frozen, and you will have a period in which to respond. However, unless the money in the account is exempt (see statutory exemptions below), the creditor can take all but a $300 general exemption up to the full amount of the judgment.
***VERY IMPORTANT NOTE: If a creditor has a judgment against you, it is usually advisable to move your bank accounts to a new bank (one that you have not used before), even if you have retained an attorney to negotiate the debt. If you move accounts, be sure to stop all automatic deposits to the old account. Ask your attorney for details.