Flash Flood Warning Northern Mariana Islands | Effective 03/10/2026 08:35

Headline: 
Flash Flood Warning issued March 11 at 1:35AM ChST until March 11 at 2:30AM ChST by NWS Tiyan GU
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
March 10, 2026 - 8:35am
Expires: 
March 10, 2026 - 9:30am
Description: 
FFWGUM The National Weather Service in Tiyan has issued a * Flash Flood Warning for... Saipan... Tinian... * Until 230 AM ChST. * At 135 AM ChST, gauge reports indicated heavy rain falling across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Gauges reported. IMPACT...Flash flooding of small creeks and streams, urban areas, and streets as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Garapan, Dandan, China Town, Tanapag, As Mahetog, Koblerville, San Jose (Tinian Municipality), Chalan Kanoa I, San Antonio, Chalan Kanoa II, Chalan Kanoa III, San Roque, Kagman, Chalan Kanoa IV, Kagman III, Gualo Rai, Afetnas, Chalan Piao, Fananganan and Chalan Laulau.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Saipan, MP; Tinian, MP
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov