My barometric pressure is constantly and currently locked due to what you say is inaccurate data.
My station has always agreed with local PWSs +/- .05 inches of mercury.
Though the elevation is similar, you are comparing my PWS to a METAR 50 miles away and in the front range and not the mountains.
Currently the METAR reads 29.82 inches of mercury.
My station (15225 in the Rocky Mountains reads 29.78.
A PWS near to me reads 29.8.
A station further south reads 29.73.
Why is my pressure always locked?