Flood Advisory
NWS Tiyan GU ยท US
Details
Flood Advisory In Effect Until 3 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 is expected.
Where
Central and northern Guam...
When
Until 300 AM ChST.
Impacts
Minor flooding in low-lying and poor drainage areas. Water over roadways possible. Rises in small streams.
Additional details
- At 1242 AM ChST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. - Some locations that will experience flooding include... Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Andersen AFB, Mongmong- Toto-Maite, Sinajana, Asan and Piti. - 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
- ~36s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2TFJ33F81CR9SJHQKRQ2VPQ
- Identifier
- urn:oid:2.49.0.1.840.0.e605f715c947ccfa5086dee2037414c09c7f3249.001.1
- 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.3841
- WMO heading
- XOMY50
- WMO data type
- CAP alert message XML (XO)
- WMO bulletin number
- 50
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | FAY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | FLSGUM |
| WMOidentifier | WGMY80 PGUM 181443 |
| NWSheadline | FLOOD ADVISORY IN EFFECT UNTIL 3 AM CHST EARLY THIS MORNING |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.NEW.PGUM.FA.Y.0092.260918T1443Z-260918T1700Z/ |
| eventEndingTime | 2026-09-19T03:00:00+10:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Guam, GU
| Name | Value |
|---|---|
| SAME | 066010 |
| UGC | GUC010 |
- Polygons
- 13.47,144.65 13.49,144.67 13.5,144.75 13.53,144.78 13.65,144.82 13.67,144.84 13.65,144.89 13.63,144.91 13.62,144.96 13.53,144.93 13.5,144.93 13.41,144.81 13.34,144.8 13.44,144.68 13.46,144.68 13.45,144.67 13.47,144.65