Flash Flood Warning in Effect for Guam; NWS Advisories in Effect

The following National Weather Service (NWS) Guam Weather Forecast Office advisories remain in effect:

A high surf advisory and high risk of rip currents remains in effect for Guam, Rota, Tinian, and Saipan until 6 p.m. this evening. Hazardous surf of 8 to 10 feet is expected in the surf zone along north, west, and south facing reefs. Dangerous swimming and surfing conditions and localized beach erosion are expected. Rip currents can sweep even the best swimmers away from shore into deeper water. Remain out of the water due to dangerous surf conditions.

A small craft advisory remains in effect for the coastal waters of Guam, Rota, Tinian, and Saipan until 6 a.m. Saturday. South winds of 30 knots with gusts to 40 knots, and seas of 9 to 13 feet are expected, creating conditions hazardous to small craft. Inexperienced mariners, especially those operating smaller vessels, should avoid sailing in these conditions.

A flash flood warning is in effect for Guam until 11:15 a.m. Between 4 and 6 inches of rain have fallen. Additional rainfall amounts of 2 to 3 inches are possible. Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as poor drainage and low-lying areas is occurring. Some locations that will experience flash flooding included Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inarajan, Asan, Merize, Piti, Santa Rita, and Umatac.

Route 1, Polaris Point, north and southbound lanes are impassible at this time. Motorists are advised to seek alternate routes. Flooding has also been identified on Route 15, north and southbound lanes, between Spanish Street and up to Andersen, as well as towards Hawaiian Rock.

The community is reminded to practice caution on the roadways, driving below the speed limit and allowing enough braking distance between vehicles. Turn Around, Don’t Drown. Immediately move to higher ground if flash flooding occurs. Water levels can rise rapidly and sweep people away. Avoid walking or driving through flood waters. Just 6 inches of moving water can knock you down, and 2 feet of water can sweep your vehicle away. Stay away from storm drains, culverts, creeks, and streams. If floodwaters rise around your car but the water is not moving, abandon the car and move to higher ground. If the water is moving, do not leave the car. Do not camp, park, or hike along streams, rivers, and creeks. These areas can flood quickly and with little warning.

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD), with NWS, will continue to monitor all systems in the area and provide updates as needed.

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 GHS/OCD 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.