Weather forecasts are incomplete/invalid for Montreal, Quebec, Canada

The clock applet will display a sunny icon with "Unknown" weather when Montreal, Quebec, Canada is selected as a location. This seems to be caused by libgweather using a small automated weather station CWTA (McTavish) instead of the expected Trudeau Intl Airport station CYUL. I think libgweather is sorting the stations by distance from the entered coordinates, so a possible solution would be to change Montreal coordinates to the same ones as the Trudeau airport.

Changing the CWTA code for CYUL in gconf and restarting the panel will "fix" the weather display.

This is a excerpt of the Locations.xms database:

<city>
  <name>Montreal</name>
  <coordinates>45.500000 -73.583333</coordinates>
  <location>
    <name>McTavish Automated Reporting Station</name>
    <code>CWTA</code>
    <coordinates>45.500000 -73.583333</coordinates>
  </location>
  <location>
    <name>Pierre Elliot Trudeau International Airport</name>
    <code>CYUL</code>
    <radar>cxx</radar>
    <coordinates>45.466667 -73.750000</coordinates>
   </location>
</city>