< Flood Watch Guam, Northern Mariana Islands | Effective 03/07/2026 12:41

Flood Watch Guam, Northern Mariana Islands | Effective 03/07/2026 12:41

Headline: 
Flood Watch issued March 8 at 6:41AM ChST until March 9 at 4:00PM ChST by NWS Tiyan GU
Event: 
Flood Watch
Urgency: 
Future
Effective: 
March 7, 2026 - 12:41pm
Expires: 
March 8, 2026 - 12:45am
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...Through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A broad tropical disturbance is interacting with a shear line, and will continue to impact the Marianas through Monday afternoon. Several rounds of locally heavy rainfall will be possible during this time frame. This could lead to 4 to 8 inches of rain across the Marianas with locally higher amounts possible. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Guam; Rota; Tinian; Saipan
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov