Flash Flood Warning Issued for Southern Guam; Heavy Rain Expected Through Saturday Afternoon
A Flash Flood Warning is in effect for Southern Guam until 1:45 PM ChST as radar indicates heavy rain and ongoing flooding across the region.
Alert Details
The National Weather Service in Tiyan GU has issued a Flash Flood Warning for Southern Guam. The alert was issued at 11:59 AM ChST on March 7 and remains in effect as flash flooding is already occurring in the region. The alert level is classified as severe with immediate urgency.
Affected Areas
The warning specifically covers Southern Guam. Locations expected to experience flash flooding include:
- Yona
- Talofofo
- Inarajan
- Asan
- Merizo
- Piti
- Santa Rita
- Umatac
What You Should Do
Residents are urged to take immediate precautions to ensure their safety. The National Weather Service advises: “Turn around, don’t drown when encountering flooded roads.” Most flood-related deaths occur in vehicles. Residents should avoid small creeks, streams, urban areas, and streets with poor drainage or low-lying geography.
Expected Conditions
Doppler radar has indicated heavy rain across the warned area. Meteorologists expect additional rainfall amounts of 2 to 4 inches are possible. The primary hazards include flash flooding of urban areas, streets, and small creeks. Flash flooding is already reported as occurring at the time of the alert issuance.
Timeline
The Flash Flood Warning is effective immediately as of 11:59 AM ChST and is scheduled to expire at 1:45 PM ChST on March 7, 2026.
Source: NOAA Official Notice
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