Flash Flood Warning Issued for Guam and Rota
This alert is no longer in effect.
NOAA issued it on April 14, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flash Flood Warning is in effect for Guam and Rota until 7:30 AM ChST on April 15, 2026, due to heavy rainfall causing flooding.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Guam and Rota
- Issued
- April 14, 2026
- Issuing authority
- NWS National Office
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Guam and Rota.
Alert Details
A Flash Flood Warning has been issued by the National Weather Service in Tiyan GU. It is effective from 5:47 AM ChST until 7:30 AM ChST on April 15, 2026.
Affected Areas
The warning affects Guam, GU, and Rota, MP. Some locations that will experience flash flooding include Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inarajan, Asan, Merizo, Piti, Santa Rita, Umatac, Sinapalo, and Songsong.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Heavy rain has been reported, with 4 to 10 inches fallen over the last 24 hours. The expected rainfall rate is 1 to 2 inches in 1 hour, and additional rainfall amounts of 2 to 4 inches are possible. Flash flooding is already occurring, caused by heavy rain, impacting small creeks and streams, urban areas, streets, and other poor drainage and low-lying areas.
Timeline
The alert is effective from 5:47 AM ChST on April 15, 2026, and ends at 7:30 AM ChST on the same day.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,127 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 14, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.