"two weeks prior" is a correct and usable phrase in written English. It is commonly used to describe an event or situation that occurred two weeks before the current moment. For example: "Two weeks prior, I had been invited to the party, but I was unable to attend."
Female mice (6-weeks-old) were ovariectomized two weeks prior to induction of EAE.
We had compared summer reading plans just two weeks prior.
Office begins about two weeks prior to the application deadline.
"I told them two weeks prior it was about to fall, and it did".
For two weeks prior to the attack he'd been staying with a foster family.
To apply, submit an online application at least two weeks prior to travel.
Please email [email protected] at least two weeks prior to arrival.
This must be done a minimum of two weeks prior to the travel date.
Pre-conference papers are available on EarthDoc two weeks prior to every EAGE event.
Sign-ups will be posted online here at least two weeks prior to the audition date.
Try to finish each with at least two weeks prior to the lecture.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia