To keep our observation records as compact as possible, we use arrays to return observation values. Each device type has a different observation format. The array definitions for each device and event type are below.
Tempest Observation
Denoted in API responses with type obs_st.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | wind lull | (m/s) |
| 2 | wind average | (m/s) |
| 3 | wind gust | (m/s) |
| 4 | wind direction | (degrees) |
| 5 | wind sample interval | (seconds) |
| 6 | pressure | (mb) |
| 7 | air temperature | (°C) |
| 8 | relative humidity | (%) |
| 9 | illuminance | (lux) |
| 10 | uv | (index) |
| 11 | solar radiation | (W/m²) |
| 12 | rain accumulation | rain accumulation during the reporting interval (mm) |
| 13 | precipitation type | 0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental) |
| 14 | lightning average distance | (km) |
| 15 | lightning strike count | number of strikes during the reporting interval |
| 16 | battery | (volts) |
| 17 | reporting interval | (minutes) |
| 18 | local day rain accumulation | midnight to midnight rain accumulation in the station's timezone (mm) |
| 19 | Nearcast rain accumulation | (mm) |
| 20 | local day Nearcast rain accumulation | midnight to midnight Nearcast rain accumulation in the station's timezone (mm) |
| 21 | precipitation analysis type | 0 = none, 1 = Nearcast value with display on, 2 = Nearcast value with display off |
Tempest Daily Observation
A summary of observation data collected from midnight to midnight in the station's local timezone. Denoted in API responses with type obs_st_ext.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | average pressure | (mb) |
| 2 | highest pressure | (mb) |
| 3 | lowest pressure | (mb) |
| 4 | average temperature | (°C) |
| 5 | lowest temperature | (°C) |
| 6 | highest temperature | (°C) |
| 7 | average humidity | (%) |
| 8 | highest humidity | (%) |
| 9 | lowest humidity | (%) |
| 10 | average illuminance | (lux) |
| 11 | highest illuminance | (lux) |
| 12 | lowest illuminance | (lux) |
| 13 | average UV | (index) |
| 14 | highest UV | (index) |
| 15 | lowest UV | (index) |
| 16 | average solar radiation | (W/m²) |
| 17 | highest solar radiation | (W/m²) |
| 18 | lowest solar radiation | (W/m²) |
| 19 | average wind speed | (m/s) |
| 20 | wind gust | (m/s) |
| 21 | wind lull | (m/s) |
| 22 | average wind direction | (degrees) |
| 23 | wind sample interval | (seconds) |
| 24 | strike count | |
| 25 | average strike distance | (km) |
| 26 | record count | |
| 27 | battery | (volts) |
| 28 | local day rain accumulation | (mm) |
| 29 | local day Nearcast rain accumulation | (mm) |
| 30 | local day precipitation minutes | (minutes) |
| 31 | local day Nearcast precipitation minutes | (minutes) |
| 32 | precipitation type | 0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental) |
| 33 | precipitation analysis type | 0 = none, 1 = Nearcast value with display on, 2 = Nearcast value with display off |
AIR Observation
Denoted in API responses with type obs_air.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | pressure | (mb) |
| 2 | air temperature | (°C) |
| 3 | relative humidity | (%) |
| 4 | lightning strike count | number of strikes during the reporting interval |
| 5 | lightning average distance | (km) |
| 6 | battery | (volts) |
| 7 | reporting interval | (minutes) |
AIR Daily Observation
A summary of observation data collected from midnight to midnight in the station's local timezone. Denoted in API responses with type obs_air_ext.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | average pressure | (mb) |
| 2 | average temperature | (°C) |
| 3 | average humidity | (%) |
| 4 | strike count | |
| 5 | average strike distance | (km) |
| 6 | highest temperature | (°C) |
| 7 | lowest temperature | (°C) |
| 8 | highest pressure | (mb) |
| 9 | lowest pressure | (mb) |
| 10 | highest humidity | (%) |
| 11 | lowest humidity | (%) |
| 12 | record count | |
| 13 | battery | (volts) |
SKY Observation
Denoted in API responses with type obs_sky.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | illuminance | (lux) |
| 2 | uv | (index) |
| 3 | rain accumulation | rain accumulation during the reporting interval (mm) |
| 4 | wind lull | (m/s) |
| 5 | wind average | (m/s) |
| 6 | wind gust | (m/s) |
| 7 | wind direction | (degrees) |
| 8 | battery | (volts) |
| 9 | reporting interval | (minutes) |
| 10 | solar radiation | (W/m²) |
| 11 | local day rain accumulation | midnight to midnight rain accumulation in the station's timezone (mm) |
| 12 | precipitation type | 0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental) |
| 13 | wind sample interval | (seconds) |
| 14 | Nearcast rain accumulation | Nearcastrain accumulation during the reporting interval (mm) |
| 15 | local day Nearcast rain accumulation | midnight to midnight Nearcast rain accumulation in the station's timezone (mm) |
| 16 | precipitation analysis type | 0 = none, 1 = Nearcast value with display on, 2 = Nearcast value with display off |
SKY Daily Observation
A summary of observation data collected from midnight to midnight in the station's local timezone. Denoted in API responses with type obs_sky_ext.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | average illuminance | (lux) |
| 2 | average UV | (index) |
| 3 | local day rain accumulation | (mm) |
| 4 | wind lull | (m/s) |
| 5 | average wind speed | (m/s) |
| 6 | wind gust | (m/s) |
| 7 | average wind direction | (degrees) |
| 8 | highest illuminance | (lux) |
| 9 | lowest illuminance | (lux) |
| 10 | highest UV | (index) |
| 11 | lowest UV | (index) |
| 12 | record count | |
| 13 | average solar radiation | (W/m²) |
| 14 | highest solar radiation | (W/m²) |
| 15 | lowest solar radiation | (W/m²) |
| 16 | battery | (volts) |
| 17 | local day Nearcast rain accumulation | (mm) |
| 18 | precipitation analysis type | 0 = none, 1 = Nearcast value with display on, 2 = Nearcast value with display off |
| 19 | local day precipitation minutes | (minutes) |
| 20 | wind sample interval | (seconds) |
| 21 | precipitation type | 0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental) |
| 21 | local day Nearcast precipitation minutes | (minutes) |
Lightning Event
Denoted in API responses with type evt_strike.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | distance | (km) |
| 2 | energy |
Rapid Wind
Denoted in API responses with type rapid_wind.
| Index | Parameter | Description |
|---|---|---|
| 0 | timestamp | Epoch (seconds, UTC) |
| 1 | wind speed | (m/s) |
| 2 | wind direction | (degrees) |