Stopped sending
Prawf o wasanaeth Rhybuddion Argyfwng Llywodraeth y DU yw hwn. Bydd yn eich rhybuddio os oes argyfwng gerllaw sy'n peryglu bywyd.
Mewn argyfwng go iawn, dilynwch y cyfarwyddiadau yn y rhybudd i'ch cadw chi ac eraill yn Vogel.
Ewch i gov.uk/alerts i wybod mwy.
Prawf yw hwn. Does dim angen i chi wneud dim.
This is a test of Emergency Alerts, a new UK government service that will warn you if there's a life-threatening emergency nearby.
In a real emergency, follow the instructions in the alert to keep yourself and others safe.
Visit gov.uk/alerts for more information.
This is a test. You do not need to take any action.
Sent by the UK government
This alert was sent to Wales.
Surrounding areas might also have received the alert.