WeatherFlow Smart Weather API Websocket Reference

Endpoints

ws://ws.weatherflow.com/swd/data

wss://ws.weatherflow.com/swd/data

Request Message	Response Message Types	Description
`{ "type":"listen_start", "device_id":1110, "id":"2098388936" }`	ack obs_air obs_sky evt_strike evt_precip	Start listening for all new observations and events for a device_id. Each new observation sent by the Device will be pushed to the client as soon as possible. All Device events will be immediatly pushed.
`{ "type":"listen_stop", "device_id":1110, "id":"2098388936" }`	ack	Stop listening for all messages for a Device.
`{ "type":"listen_start_events", "station_id":2594, "id":"2098388541" }`	ack evt_station_online evt_station_offline	Start listening for all Station online and offline events. All Station events will be immediatly pushed.
`{ "type":"listen_stop_events", "station_id":2594, "id":"2098388541" }`	ack	Stop listening for all event messages for a Station.
`{ "type":"listen_rapid_start", "device_id":1110, "id":"2098388542" }`	ack rapid_wind	Start listening for rapid 3 second wind data for a Sky Device.
`{ "type":"listen_rapid_stop", "device_id":1110, "id":"2098388587" }`	ack	Stop listening for rapid data messages for a Device.

{
  "type":"ack",
  "id":"2098388936"
}

{
  "type":"evt_precip",
  "device_id":1110
}

{
  "type":"evt_strike",
  "device_id":1110,
  "evt":[1493322445,27,3848]
}

Evt Value Layout

{
  "type":"evt_device_online",
  "device_id":1110
}

{
  "type":"evt_device_offline",
  "device_id":1110
}

{
  "type":"evt_station_online",
  "station_id":4582
}

{
  "type":"evt_station_offline",
  "station_id":4582
}

{
  "type":"rapid_wind",
  "device_id":1110,
  "ob":[1493322445,2.3,128]
}

Ob Value Layout

{
  "type":"obs_air",
  "device_id":1110,
  "obs":[[1493164835,835.0,10.0,45,0,0,3.46,1]]
}

Observation Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Station Pressure	MB
2	Air Temperature	C
3	Relative Humidity	%
4	Lightning Strike Count
5	Lightning Strike Avg Distance	km
6	Battery	Volts
7	Report Interval	Minutes

{
  "type":"obs_sky",
  "device_id":1110,
  "obs":[[1493321340,9000,10,0.0,2.6,4.6,7.4,187,3.12,1,130,1.034,0,3,0.0,1.011,1]]
}

Observation Value Layout

Index	Field	Units
0	Time Epoch	Seconds
1	Illuminance	Lux
2	UV	Index
3	Rain Accumulated	mm
4	Wind Lull (minimum 3 second sample)	m/s
5	Wind Avg (average over report interval)	m/s
6	Wind Gust (maximum 3 second sample)	m/s
7	Wind Direction	Degrees
8	Battery	Volts
9	Report Interval	Minutes
10	Solar Radiation	W/m^2
11	Local Daily Rain Accumulation	mm
12	Precipitation Type	0 = none, 1 = rain, 2 = hail
13	Wind Sample Interval	seconds
14	Rain Accumulated Final (Rain Check)	mm
15	Local Daily Rain Accumulation Final (Rain Check)	mm
16	Precipitation Analysis Type	0 = none 1 = Rain Check with user display on 2 = Rain Check with user display off