000 WWUS86 KMTR 221136 AWWSFO CAZ508-230400- AIRPORT WEATHER WARNING NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 436 AM PDT WED MAY 22 2013 ...SFO AIRPORT WEATHER WARNING FOR STRONG WINDS EXPECTED FROM 20Z (1 PM PDT) THIS AFTERNOON TO 04Z (9 PM PDT) THIS EVENING... SUSTAINED WEST WINDS AROUND 30 KT WITH GUSTS TO 40 KT WILL IMPACT SFO BETWEEN 20Z (1 PM PDT) THIS AFTERNOON AND 04Z (9 PM PDT) THIS EVENING. $$ CW