4:10 p.m. Heavy Rainfall Expected Late in the Weekend through Next Week

The National Weather Service (NWS) Guam Weather Forecast Office issued a hydrologic outlook for Guam, Rota, Tinian, and Saipan.

A tropical disturbance, Invest 99W, is centered east-southeast of Guam near 10.6N 152.8E. This system remains disorganized, but it is expected to move toward the Marianas late this weekend into next week. 99W is expected to bring heavy rainfall to the Marianas from Sunday night through at least Thursday night.

There is potential for Guam and the CNMI to see rainfall amounts of 3 to 7 inches from Sunday night through Thursday night, with locally higher amounts possible. This rainfall is expected to produce minor flooding across the islands, with flash flooding possible in areas of higher rainfall, especially over Guam.

Residents and visitors are advised to take the following precautionary actions:

Those living in flood-prone areas should take action; clear drainage areas and unblock storm drains to minimize flooding;
Stay up to date with the latest weather information;
When driving in heavy rain, be alert for low visibilities and slippery roads;
Slow down where water is ponding on the road.

The Office of Homeland Security and the Office of Civil Defense (OHS-OCD) remind the community to be alert for additional advisories in the coming days.

Visit the following links for the latest advisory information:

NWS Website: https://www.weather.gov/gum/
NWS Facebook: https://www.facebook.com/NWSGuam/
GHS/OCD Website: https://ghs.guam.gov/
GHS/OCD Facebook: https://www.facebook.com/GHSOCD/

For more information, contact Public Information Officer Jenna G. Blas at (671) 489-2540 or via email at jenna.g.blas@ghs.guam.gov.

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.