Whats your question? They will probably take out like 20% Federal withholding. The gross distribution will add to your income and it taxable. The withholding may not cover the extra tax on all your income. Plus there is a 10% Early Withdrawal Penalty if you are under 59 1/2.
Do you want to send in some extra payment? Here are the blank estimate forms and instructions for federal. You need to go to your state's website to get theirs.
https://www.irs.gov/pub/irs-pdf/f1040es.pdf
Or you can pay directly on the IRS website https://www.irs.gov/payments
Be sure to pick the right kind of payment and year.....2019 Estimate
