The nws weather data fetching script (MobileX1.js) needs to be edited in order to pass the correct url using lat, lng, etc parameters to the iframes.
radarImage.setAttribute("src", "alkurl.html?lng=" + longitude + "&lat=" + latitude + "&zoom=8");
Here is an example using predefined url parameters (everything after the "?")
https://kaosfactory.github.io/alkurl.html?lng=-76&lat=39&zoom=8
If you change the lng, lat, zoom values (in the link above) it will automatically "go to" that location.
Result...
https://kaosfactory.github.io/mobileX1.html