Flood Advisory
NWS Tiyan GU ยท US
Details
Flood Advisory Now In Effect Until 5 AM ChST Early This Morning
- Event
- Flood Advisory
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Minor
- Certainty
- Likely
- Response
- Avoid
Description
What
Urban area and small stream flooding caused by excessive rainfall continues.
Where
Guam...
When
Until 500 AM ChST.
Impacts
Minor flooding in low-lying and poor drainage areas. Water over roadways possible. Rises in small streams.
Additional details
- At 311 AM ChST, Doppler radar indicated heavy rain due to additional heavy showers and thunderstorms. This may cause urban and small stream flooding. - Additional rainfall amounts of 0.5 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience 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 and Umatac. - http://www.weather.gov/safety/flood
Instructions
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Affected areas
- Guam, GU
Public contact
- Issuer
- NWS Tiyan GU
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~56s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2K111HCRR5B2H9WDBM483B7
- Identifier
- urn:oid:2.49.0.1.840.0.cf83fb416588ea090e6aa07ae6a719a38bc13a92.001.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Tiyan GU
- AWIPS ID
- CAPGUM
- NWWS sequence
- nwws_processor.7375
- WMO heading
- XOMY50
- WMO data type
- CAP alert message XML (XO)
- WMO bulletin number
- 50
References
- Sender
- w-nws.webmaster@noaa.gov
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | FAY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | FLSGUM |
| WMOidentifier | WGMY80 PGUM 151714 |
| NWSheadline | FLOOD ADVISORY NOW IN EFFECT UNTIL 5 AM CHST EARLY THIS MORNING |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.EXT.PGUM.FA.Y.0091.000000T0000Z-260915T1900Z/ |
| eventEndingTime | 2026-09-16T05:00:00+10:00 |
| BLOCKCHANNEL | CMAS |
| expiredReferences | w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.36d2e619dbdc596792be32e90fbd0d5d3e25831f.001.1,2026-09-16T00:20:00+10:00 |
Locations
Location data
- Guam, GU
| Name | Value |
|---|---|
| SAME | 066010 |
| UGC | GUC010 |
- Polygons
- 13.33,144.61 13.36,144.61 13.42,144.64 13.41,144.66 13.39,144.66 13.49,144.68 13.5,144.75 13.53,144.78 13.67,144.84 13.62,144.97 13.59,144.97 13.51,144.94 13.41,144.81 13.27,144.79 13.23,144.75 13.22,144.68 13.23,144.63 13.27,144.65 13.33,144.61