I think I have it fix. Give it a try and see.
1. Make sure you save a copy of your original advance2.php file.
2. Download advforecast2.txt. Once downloaded, make sure to change .txt to .php.
3. Change $NOAAZone to your location. See photo below
4. Copy your $filename URL from your original advforecast2.php and paste it into the new advforecast.php file. See photo below.
5. Upload the updated file to your server. Hope it works!!