Weather Map Data (EWN GIS platform)
EWN can provide data from our internal GIS Platform via API for the following components:
- Severe Weather and Natural Hazard Alerts across Australia
- Tropical Cyclone Tracking
- River gauges
- National EWN High Resolution (Volumetric) Radar across the Australian BOM radar network
- Rain gauges
- Automatic Weather Stations (AWS) Observations
The GIS layers API is set up for the server to server access and is not fit for direct to client responses with a limit of feed requests once per 2 minutes for each endpoint
Radar and Alert data shown on the EWN GIS platform
Live Hail Alerting
Using our new Australia first hail algorithms, EWN can now provide targets cell specific hail alerts and polygons where large hail has been detected.
The EWN Hail Alerting system monitors all weather radars (BOM owned) across Australia and scans for the detection of hail at all heights of the atmosphere.
Upon any storm where large hail is detected (2cm +), EWN Alert Operators will confirm it is a true reading and send out an immediate Hail Alert Polygon. The Hail Alert includes where the storm is, the size of the largest hail stones and the areas to be impacted over the next 30 to 60 minutes.
The image on the left shows EWN Hail software detecting large hail in numerous storms across the Greater Sydney Region. Hail markers are shown as triangles with the size in cms of the largest hail inside the triangle. Purple markers indicate giant hail. Directional arrows show the direction of the hail and allow for EWN staff to draw polygons and send a hail alert to clients via API.
The image on the right shows a cross section of the storm allowing EWN staff to view where the hail is and the set-up of the storm.