I did take the code you posted for the Saratoga National Weather Service Alerts and made some modification to better integrate it into Meteotemplate. The updated block can be downloaded by going to https://www.cecilweather.com/weather/ce ... s_v1.1.zip and installed just like any other Meteotemplete block.

To make this work, the nws-alerts-config.php file needs to be directly edited. I did the following updates in this file to make this work well within Meteotemplate:
$myZC - with the wanted zones by getting codes from alerts.weather.gov
$ourTZ - with the current time zone
$cacheFileDir - directory with the alerts cache is stored.
$icons_folder - directory for the icons are stored
$blockpath - this is something customized for Meteotemplete. This is the path where this block resides on your website.
$alertURL - path to where the nws-details.php file is located
$summaryURL - path to where the nws-summary.php file is located
The rest of the variables should also be checked and adjusted as needed. Particularly if you are going to retrieve more than a couple zones then you should set the $noCron to FALSE and setup a CRON job. If anyone is reading this wondering how all this works, please check out the README file included in the zip as it contains all of the details from Saratoga-weather.org who get all of the credit for developing this script. I also left my settings in the nws-alerts-config.php file to be used as a guide. Hope this helps!