Northern Mariana Islands Severe Flood Watch | Effective 10/01/2026 06:11

Headline: 
Flood Watch issued October 1 at 11:11PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU
Event: 
Flood Watch
Urgency: 
Future
Effective: 
October 1, 2026 - 6:11am
Expires: 
October 1, 2026 - 2:15pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Saipan and Tinian. * WHEN...Through late Sunday night. * 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... - Tropical Storm Choi-wan (26W) is passing through the northern CNMI to the north of Tinian and Saipan, bringing heavy rainfall. After Choi-wan's passage this weekend, a trailing monsoon inflow band will maintain wet conditions into early next week, resulting in 4 to 8 inches of rain for Tinian and Saipan during the watch period. - 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: 
Tinian; Saipan
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov