Critical incident

DTN: Global Enhanced Flight Hazards Delayed

Affected: GFS GRIB2 Flight Hazards, GFS Shapefile Flight Hazards, GFS GeoJSON Flight Hazards

Current status of DTN: Operational — live DTN status

Timeline

1. May 27, 2026, 12:20 UTC
   investigating
   We are currently investigating the 27 May 0600Z Global Enhanced Flight Hazards, as they have not updated yet.
2. May 27, 2026, 12:47 UTC
   investigating
   We continue to investigate the issue with the Enhanced Flight Hazards. The investigation is focusing on the reception of the model input. This impacts both the 27 May 0600Z Global Enhanced Flight Hazards and the North America Enhanced Flight Hazards.
3. May 27, 2026, 13:17 UTC
   monitoring
   DTN has started to receive the 27 MAY 0600Z GFS for the Global Enhanced Flight Hazards. We will continue to monitor the reception of the data and will continue to send the associated files.
4. May 27, 2026, 13:44 UTC
   investigating
   The GFS model data has stalled. We have received part of the 27 MAY 0600Z Global Enhanced Flight Hazards. For the North Ameria Hazards, the 0800Z is the latest model data we have received. We continue to investigate this issue.
5. May 27, 2026, 14:28 UTC
   investigating
   We continue to investigate this issue. For the Global Enhanced Flight Hazards, we have sent part of 27 May 0600Z files, but model ingestion has stalled. We are investigating why this has occurred. For the North America Flight Hazards, the latest model available is 27 May 0900Z.
6. May 27, 2026, 15:14 UTC
   monitoring
   DTN has received the remainder of the forecast model data and is running the files now. This is for the 27 May 0600Z Global Enhanced Flight Hazards. And the latest of the North America Enhanced Flight Hazards.
7. May 27, 2026, 15:40 UTC
   resolved
   This is now resolved. The 27 May 0600Z Global Enhanced Flight Hazards has completed. For the North America Enhanced Flight Hazards, the latest available is for 27 May 1400Z.

Updates as published by DTN (original).