The IRS says they will automatically apply penalty relief based on your address, if you are in an affected area. If you can, delete the penalty form, or decline turbotax's offer to calculate a penalty. Submit your return without the penalty form, and let the IRS calculate it for you. If they do bill you for a penalty, you can call the number on the notice to have the penalty abated.
https://www.irs.gov/newsroom/irs-provides-relief-for-helene-various-deadlines-postponed-to-may-1-202...
