Behold! The very first Cow Omelets in Wales!
A series started by airhorns in Lancashire and growing fast.
Cow Omelet is an anagram of Welcome to...
The rest is an anagram of the town, but in this case there's a little extra twist...
extract the letters of the town and what you have left gives you a number, save that for the bonus cache, which will be coming later when I get permission.
This is the older Northern approach to town, now bypassed by the A4061, but it passes the hospital, so still an important route.