Guam, Northern Mariana Islands Severe Flood Watch | Effective 10/03/2026 22:11

Headline: 
Flood Watch issued October 4 at 3:11PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU
Event: 
Flood Watch
Urgency: 
Future
Effective: 
October 3, 2026 - 10:11pm
Expires: 
October 4, 2026 - 6:15am
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam and Rota * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Shower coverage has decreased to scattered across the Marianas. Locally brief downpours will be possible through Tuesday, but Flash Flooding is no longer expected. - 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
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov