Desperately Seeking Google Weather API Vocabulary

I work in a sub-basement. From about 9am to about 5pm, I don't see the sun. Great amounts of change can happen in that time, and I hate coming up for air without knowing what's up. So, great amounts of my programming come from trying to keep track of conditions. I send the weather info to local printers. I have a twitter feed. I have gravitated to using XML::DOM and Google's Weather API to give me the information. It's not too detailed, it's fast, and if Google's down, the Internet is down.

I have since found notify-send (mentioned here) and have found a set of weather icons that I like. And I'm working on getting the notifications look good.

My problem is that I'm not seeing a one-to-one mapping between the condition strings I'm getting from Google and the file names I'm getting from the icon sets. Nor are the image names listed in the XML.

So, I created a simple mapping of Condition strings to icon names.

sub config_icons {
    my $path = '/home/jacoby/Pictures/weather_icons/' ;
    my %config ;
    $config{ 'Clear' }         = $path . 'sunny.png' ;
    $config{ 'Partly Cloudy' } = $path . 'cloudy1.png' ;
    $config{ 'Mostly Cloudy' } = $path . 'cloudy3.png' ;
    $config{ 'Cloudy' }        = $path . 'cloudy5.png' ;
    $config{ 'Overcast' }      = $path . 'overcast.png' ;
    $config{ 'Haze' }          = $path . 'fog.png' ;
    $config{ 'Fog' }           = $path . 'fog.png' ;
    $config{ 'ELSE' }          = $path . 'dunno.png' ;
    return \%config ;
    } 

This is a list of weather conditions that were observable in the American Midwest in summer and early fall, 2009. This is not the whole list of weather conditions.

What I am looking for today are the other ones, so I can finish this code and maybe send it out to you. Any help?