Special Weather Statement
NWS Tiyan GU ยท US
New
Details
A Strong Thunderstorm Will Impact Central Guam Through 945 PM ChST
- Event
- Special Weather Statement
- Issued
- Effective
- Onset
- Message expires
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Moderate
- Certainty
- Observed
- Response
- Execute
Description
Overview
At 915 PM ChST, Doppler radar was tracking a strong thunderstorm over the west coast of Guam. This thunderstorm is moving east at 10 mph.
Hazard
Wind gusts up to 40 mph.
Source
Radar indicated.
Impacts
Gusty winds could knock down tree limbs and blow around unsecured objects.
Instructions
If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.
Affected areas
- Guam
Public contact
- Issuer
- NWS Tiyan GU
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~1m10s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2WP6NQ5HW9Y4SMZ287QTW5V
- Identifier
- urn:oid:2.49.0.1.840.0.d20e1cfdbfac8e1da776b6145db03ede1f1ec86b.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.8981
- WMO heading
- XOMY50
- WMO data type
- CAP alert message XML (XO)
- WMO bulletin number
- 50
Event codes
| Name | Value |
|---|---|
| SAME | SPS |
| NationalWeatherService | SPS |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | SPSGUM |
| WMOidentifier | WWMY80 PGUM 191117 |
| NWSheadline | A STRONG THUNDERSTORM WILL IMPACT CENTRAL GUAM THROUGH 945 PM CHST |
| eventMotionDescription | 2026-09-19T11:15:00-00:00...storm...304DEG...4KT...13.51,144.7 |
| maxWindGust | 40 MPH |
| maxHailSize | 0.00 |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Guam
| Name | Value |
|---|---|
| SAME | 066010 |
| UGC | GUZ001 |
- Polygons
- 13.44,144.66 13.47,144.67 13.46,144.68 13.48,144.71 13.48,144.77 13.5,144.76 13.51,144.8 13.56,144.82 13.53,144.92 13.42,144.78 13.34,144.77 13.44,144.62 13.44,144.66