Northern Mariana Islands Severe Flood Watch | Effective 09/30/2026 09:57

Headline: 
Flood Watch issued October 1 at 2:57AM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 30, 2026 - 9:57am
Expires: 
October 1, 2026 - 1:00am
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Saipan and Tinian. * WHEN...From 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... - Heavy rainfall associated with Tropical Storm 26W will impact Saipan and Tinian late this evening through Sunday night. Additionally, a monsoon surge south of TS 26W will keep wet conditions across Saipan and Tinian into next week. Between 4 and 8 inches of rain is expected during this watch period 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: 
Tinian; Saipan
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov