The basic weather patterns that we've grown used to on weather maps are also subject to rapid change. (scientificamerican.com)
The problem is insufficient weather stations to create weather maps with sufficient accuracy to produce useful results. (drtimball.com)
The theory was that if we had a catalog of weather map types then we could compare the current pattern to the catalog and make the forecast based on what happened in the catalog. (judithcurry.com)