Northern Mariana Islands Severe Flood Watch | Effective 09/30/2026 22:07

Headline: 
Flood Watch issued October 1 at 3:07PM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 30, 2026 - 10:07pm
Expires: 
October 1, 2026 - 6:15am
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Saipan and Tinian. * WHEN...From 10 PM ChST this evening 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 somewhat north of Tinian and Saipan. Choi-wan will drag a monsoon inflow band across Tinian and Saipan, resulting in 4 to 8 inches of rain for Tinian and Saipan. - 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