Iowa Roadway Weather Information System Live Atmospheric Data

Live atmospheric data from Roadway Weather Information System (RWIS) sites across Iowa, maintained by the State of Iowa. The data is updated every 10 minutes, providing near real-time environmental readings. Invalid sensor values (NA or 9999) are excluded from the service.

Use Cases

• Predict road surface conditions from air temperature, humidity, and wind speed sensor readings.
• Analyze precipitation patterns using precipitation sensor data across Iowa's roadway network.
• Monitor visibility and fog risk using atmospheric sensor data from specific RWIS station locations.
• Correlate pavement temperature with air temperature and solar radiation sensor measurements.

Strengths

• Data updates every 10 minutes, enabling near real-time analysis.
• Invalid sensor readings (NA or 9999) are explicitly filtered from the service.

Limitations

• Unknown total row count and historical data depth limit longitudinal analysis.
• Geographic scope is limited to Iowa, USA, reducing broader applicability.

Provenance

Source

State of Iowa

Collection Method

Sensors from Roadway Weather Information System (RWIS) sites.

Time Range

null

Freshness

Updated every 10 minutes.

Geography

Iowa, USA