000 WWGM80 PGUM 070508 AWWGUM GUZ001-070800- AIRPORT WEATHER ADVISORY FOR GUAM INTERNATIONAL AIRPORT NATIONAL WEATHER SERVICE TIYAN GUAM 310 PM CHST SUN SEP 7 2008 AN AVIATION THUNDERSTORM ADVISORY IS IN EFFECT FOR THE AIRPORT FROM 310 PM TO 600 PM CHST. THUNDERSTORMS ARE POSSIBLE OR OCCURRING TO THE WEST OF GUAM WITHIN 20 NAUTICAL MILES OF THE AIRPORT. BE ALERT AND TAKE PRECAUTIONS AS REQUIRED. $$ MCELROY