The National Weather Service (NWS), Guam Weather Forecast Office has issued a thunderstorm advisory until 8:30 a.m. Thunderstorms are possible or occurring within 20 nautical miles of the airport.
Weather forecaster Brandon Aydlett told Andrea Pellacani on NewsTalk K57 that heavy showers and thunderstorms are expected, with about one inch of rain expected.
Aydlett said the rain and thunderstorms can be expected in most of Guam, especially from Yona to Andersen that will affect rush hour commutes and students being dropped in bus stops.
NWS will continue to monitor a weak circulation southwest of Guam and a surface trough just to the southeast. As the trough moves over Guam, it will maintain showers and thunderstorms for Guam today and then Saipan and Tinian tonight. Drier weather is expected Tuesday.
The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) remind the community to practice caution while traveling in the rain, driving below the speed limit and allowing enough braking distance between vehicles. Be alert and take precautions by seeking shelter when lightning is seen or thunder is heard.