Your Settings.php seems to be missing some settings:
The new NWS map specification in Settings.php uses:
$SITE['NWSregion'] = 'sw'; // NOAA/NWS regional radar maps
// 'ak' = Alaska,
// 'nw' = Northwest, 'nr' = Northern Rockies, 'nm' = North Mississippi Valley,
// 'nc' = Central Great Lakes, 'ne' = Northeast,
// 'hi' = Hawaii,
// 'sw' = Southwest, 'sr' = Southern Rockies, 'sc' = Southern Plains,
// 'sm' = South Mississippi Valley, 'se' = Southeast
and for the left-hand map.
The WU IR Satellite map specification uses:
$SITE['WUsatellite'] = 'sw'; // Wunderground regional satellite maps
// ="nw" North West, ="nc" North Central, ="ne" North East,
// ="wc" West Central, ="ce" Central, ="ec" East Central,
// ="sw" South West, ="sc" South Central, ="se" South East,
// ="us" United States (Conus)
for the right-hand map.
Because they're missing in Settings.php, the default maps are 'sw' for the NWS and 'us' for the Satellite/IR WU map.