The old WU satellite maps are stuck.
You can change your index.php from
<img src="https://icons.wunderground.com/data/640x480/<?php echo $SITE['WUregion']; ?>_vi_anim.gif" alt="Regional Infrared Satellite"
width="320" height="240" style="margin: 0px; padding: 0px; border: none" />
to
<img src="https://s.w-x.co/staticmaps/wu/wu/satir1200_cur/usa<?php echo $SITE['WUregion']; ?>/animate.png" alt="Regional Infrared Satellite"
width="320" height="240" style="margin: 0px; padding: 0px; border: none" />
to get the animated NorthWest infrared satellite image.