On zip code 25177, using Weather Underground stations results in some of the data not being downloaded (see pic). This is on Instititute, WV (MesoWest I-64 Exit 50 Institute, WV. Even less is obtained from Saint Albans, WV (CW5973 Saint Albans). The problem appears to be isolated to the Weather Underground stations.
This is on WWL 7012 and with Windows 7 SP1 x64 Professional.