sed 's/<BR>/\n/g' 2*/* | egrep "(M1/4SM| 1/8SM| 1/16SM| 0SM|MPS 0[0-3][0-9][0-9] |KT 0[0-3][0-9][0-9] )" | egrep "(\+SN|\+SHSN)" | egrep "(G[3-9][0-9]KT|G1[6-9]MPS|G[2-9][0-9]MPS)" > metars
sort metars | uniq | cut -c1-4 | sort | uniq -c | sort -r -n > list


