all: prep prec.csv

prep: stns.csv area.lst

stns.csv:
	wget -Ostns.csv 'http://toyoda-eizi.net/wxod/amd/any/stnmeta/latest/data.csv'

area.lst: stns.csv
	awk -F, '/^44/{print $$1}' stns.csv > area.lst

prec.csv: area.lst