That table doesn't mention any Warrant Officers in the USN, so can't help ya, except my previous post..... RN WO1 is a Master Chief, RN WO2 is a Senior Chief. All subjective anyway - in a NATO draft I (as an LRO, supposedly equivalent to a USN PO 3rd Class, supervised a USN PO 2nd class and a USN PO 3rd Class. When the watch was over, though, the PO2 went back to his Mess, which was for our Sergeants ("OR5") and equivalent.
The modern RN warrant officers are what used to be known Fleet Chief Petty Officers, i.e. they are senior rates. The old warrant officers who were officers all became Sub-Lieutenants (Special Duties) and Lieutenants (Special Duties) in the 1940s - 50s.
From past experience I don't think they are the same.
In the US Navy a Chief Warrant is a Commissioned Officer and is intended to serve in a technical field. They have all the status and privileges of an Officer. In the US Navy all Chief Warrants were Chief Petty Officers (or Senior or Master Chiefs) prior to appointment. (USMC has different requirements)
Depending on the command (and the Commanding Officer) a USN CWO can be the Skippers "special councilorâ€, another officer, or a CPO that they must allow in the Ward Room.
In linier ranking a USN CWO is between an Ensign and a Master Chief Petty Officer. In practice a USN CWO will (usually) fill a billet equivalent to a Lieutenant or a Lieutenant Commander.
Several years ago USN had CWO Nurses, these were Nursing School, Community College (2 yr) Nurses. Upon completion of their 4 year degree the nurse became a Lieutenant Junior Grade.. (program now discontinued) .. upon hearing of the program an officer remarked â€œnow they have Nurses that can yell at youâ€..
One of the problems with using online ''pedia's" they are often wrong! There are several mistakes in this chart, at least if you choose to take Queens Regs as the definitive . A leading Rate is no longer junior to other service Corporals WEF 2005 when QR's were re-written, also a PO is not OR5/ OR6 he is in fact OR6. We have no ranks in the OR3 or OR5 brackets.
I would therefore take the WO definitions with a pinch of salt.
I remember a US Army Chief Warrant Officer at HQ AFNORTH, Oslo, in the 70s - he might not have been the senior officer but in real terms he ran the place! Mind you, there were USAF Chief Master Sergeants (or something like that - stripes/chevrons everywhere) who would have been hard pressed to be in charge of light bulbs.