Flash Flood Warning In Effect Until 5:45 pm


Flash Flood Warning In Effect Until 5:45 pm

Flash Flood Warning In Effect Until 5:45 pm

The National Weather Service (NWS) Guam Weather Forecast Office issued a flash flood warning, in effect for North Central Guam, until 5:45 pm this afternoon. Doppler radar indicated heavy rain across the warned area. Between 0.6 and 1.4 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 0.8 to 2.6 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Life threatening flash flooding of creeks and streams,urban areas, highways, streets and underpasses.

 Some locations that will experience flooding include Dededo, Tamuning, Yigo and Andersen AFB.

Residents and visitors are advised to take the following pcautionary actions;

  • Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles.
  • Be aware of your surroundings and do not drive on flooded roads.
  • In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
  • Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Hikers especially should avoid streams and creeks.

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) advise the community to practice caution while traveling in rainy conditions, driving below the speed limit and allowing enough braking distance between vehicles.

Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Visit the following links for the latest advisory information:

For more information, contact Acting Public Information Officer Stephen Cahill at (671) 489-9517 or via email at stephen.cahill@ghs.guam.gov.



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June 2018 is Typhoon Preparedness Month