URL Change… In your rss-weather-alerter.php file
Change this…
$RSS_URL = 'http://alerts.weather.gov/cap/wwaatmget.php?x=';
To this…
$RSS_URL = 'http://alerts.weather.gov/cap/wa.php?x=';
And change the /wa.php part to your state abbreviations. Can find the list here… http://alerts.weather.gov/