Service status
Measured, not promised. These are real delivery times from the last 24 hours.
Delivery time
last 24 hoursNo alerts delivered in the last 24 hours, so there is nothing to measure. Figures appear here once alerts start flowing.
Monitored sources
NOAA National Weather Service (CAP)
NOAA Space Weather Prediction Center
USGS Earthquake Hazards Program
Workers
Delivery Worker
Ingest Worker
End-to-end time is measured from the timestamp the issuing agency put on an alert to the moment our delivery provider accepted it. It splits into two parts, shown separately above, because they have different causes: agencies take time to disseminate an alert to their public feeds, and we take time to match and send it. Time spent in a carrier or mail network after our provider accepts a message is outside our control and is not counted here.