Guam Homeland Security - Office of Civil Defense

X Flooding is a temporary overflowing of water onto land that is normally dry. Flooding may happen with only a few inches of water, or it may cover a house to the rooftop. There are many possible causes of floods including heavy rain, coastal storms and storm surge, waterway overflow from being blocked with debris, or overflow of levees, dams, or waste water systems. Flooding can occur slowly over many days or happen very quickly with little or no warning, called flash floods.

To learn more, visit https://www.ready.gov/floods

Wildfire

Regularly clean the roof and gutters.
Maintain an area approximately 30’ away from you home that is free of anything that will burn, such as wood piles, dried leaves, newspapers and other brush.
Connect garden hoses long enough to reach any area of the home and fill garbage cans, tubs, or other large containers with water.
Review your homeowner's insurance policy and also prepare/update a list of your home's contents.

Fire Weather

Turn on your TV/radio. You’ll get the latest weather updates and emergency instructions.
Know where to go. If you are ordered to evacuate, know the route to take and have plan of where you will go. Check-in with your friends and family.
Keep your car fueled, in good condition, and stocked with emergency supplies and a change of clothes.

Drought

Conserve water

Take shorter showers.

Turn off the water while brushing your teeth or shaving.
Run the washer less frequently and only when you have a full load.
Water your lawn less frequently and do so when the temperature is cooler in the early morning or late evening.
When you run the tap to heat or cool water, keep a pitcher to store the water and use it to water plants.
Avoid washing your car.

Practice fire prevention

Don't set off fireworks when conditions are dry.
Deposit cigarette butts in the proper receptacle to avoid starting a
Pour water over camp fires and backyard fire pits to ensure they are completely out before leaving them unattended.

Follow directions from local officials. If there are restrictions on water usage, be sure to heed them.

To learn more, visit https://www.ready.gov/wildfires and https://www.ready.gov/drought

X
Typhoons/Hurricanes are massive storm systems that form over the water and move toward land. Threats from typhoons/hurricanes include high winds, heavy rainfall, storm surge, coastal and inland flooding, and rip currents.

“Hurricanes” form in the Atlantic Northeast Pacific region and “Typhoons” form in the Northwest Pacific Region. These large storms are call cyclones in other parts of the world.

To learn more, visit https://www.ready.gov/hurricanes.

Tropical Depression 11W (Shanshan) poses no direct threat

The National Weather Service (NWS) Guam Weather Forecast Office is issuing Public Tropical Cyclone Advisories on Tropical Depression 11W.

At 7AM ChST, Tropical Depression 11W was located 330 miles NNW of Guam, moving NW at 7 mph with maximum sustained winds of 35 mph (Tropical Storm is sustained 39 mph).

Tropical Depression 11W poses no direct threat to Guam or the CNMI as it continues to move away.

There are no tropical storm watches or warnings at this time, nor are they anticipated with 11W.

Read more about Tropical Depression 11W (Shanshan) poses no direct threat

Flood Advisory in effect until 2:00pm

The National Weather Service (NWS) Guam Weather Forecast Office issued a flood advisory, in effect for Guam, until 2:00 pm this afternoon. Trained weather spotters reported heavy rain across the entirety of Guam. This will cause urban and small stream flooding. Between 1.2 and 2 inches of rain have fallen.

Additional rainfall amounts of 2 to 3 inches are expected over the area. This additional rain will result in minor flooding. Periods of heavy rainfall will remain likely throughout the day.

Read more about Flood Advisory in effect until 2:00pm

Flood Advisory in effect until 5:15pm

The National Weather Service (NWS), Weather Forecast Office Guam issued a flood advisory is in effect for Guam until 5:15pm.

Expect minor flooding in low-lying and poor drainage areas. Some villages that may experience flooding include: Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Talofofo, Mongmong-Toto-Maite, Sinajana, Asan and Piti.

Read more about Flood Advisory in effect until 5:15pm

Special Weather Statement

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Special Marine Warning for Guam Coastal Waters

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Small Craft Advisory in Effect

The National Weather Service (NWS) Guam Weather Forecast Office advised a small craft advisory remains in effect for the coastal waters of Guam, Rota, Tinian, and Saipan until 5 p.m. this afternoon. Southwest winds of 15 to 25 knots, with gusts to 30 knots, and seas of 6 to 9 feet are expected. Conditions will be hazardous to small craft. Inexperienced mariners, especially those operating smaller vessels, should avoid boating in hazardous conditions.

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Flood Advisory and Thunderstorm Advisory in Effect; Drive with Caution

The National Weather Service (NWS) Guam Weather Forecast Office issued a flood advisory, in effect for all of Guam until 10 p.m. Excessive rainfall will cause urban and small stream flooding. Between 0.4 and 0.6 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are expected resulting in minor flooding.

Some locations that will experience flooding include Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Agana Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inarajan, Asan, Merizo, Piti, Santa Rita, and Umatac.

Read more about Flood Advisory and Thunderstorm Advisory in Effect; Drive with Caution

Thunderstorm Advisory in Effect; Practice Caution

The National Weather Service (NWS) Guam Weather Forecast Office issued a thunderstorm advisory, in effect for the Guam International Airport until 9 p.m. this evening. Thunderstorms are occurring within 20 nautical miles of the airport.

Showers developing to the west of Guam suggest potential for some of these showers to develop into thunderstorms. Be alert and take precautions as required. If outdoors, seek shelter if lightning is seen or thunder is heard.

Visit the following links for the latest advisory information:

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GHS/OCD Hosts Poster Contest for 2024 National Preparedness Month

Throughout the month of September, Guam will join the nation in celebrating National Preparedness Month (NPM) and promoting the importance of planning and preparing for man-made and natural disasters such as typhoons, earthquakes, tsunamis, and floods. This year’s NPM theme is, “Empowering Asian American, Native Hawaiian, and Pacific Islander communities to Prepare for Risks and Disasters.”

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U.S. Navy and Government of Guam to Participate in Joint Emergency Response Exercise

NAVAL BASE GUAM (Aug. 1, 2024) – The U.S. Navy and the Government of Guam are scheduled to conduct a joint emergency response exercise simulating a transportation incident involving a material shipment. The exercise will be held on Polaris Point, U.S. Naval Base Guam, Aug. 2.

Read more about U.S. Navy and Government of Guam to Participate in Joint Emergency Response Exercise

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June 2018 is Typhoon Preparedness Month

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