Iowa Roadway Weather and Pavement Condition Data

Live data from the Roadway Weather Information System (RWIS) in Iowa, updated every 10 minutes. The dataset contains surface and pavement condition measurements, with invalid sensor values (NA or 9999) excluded from the service. It is provided by the State of Iowa.

Use Cases

• Predict road surface temperature from other sensor metrics to forecast icing conditions.
• Analyze pavement condition trends over time using timestamped sensor readings.
• Correlate specific weather station data (e.g., air temperature, dew point) with reported surface states.
• Train anomaly detection models to identify sensor malfunctions flagged by invalid value codes.

Strengths

• Data is updated every 10 minutes, providing near real-time observations.
• Invalid sensor readings (NA or 9999) are explicitly flagged and excluded from the service.

Limitations

• The total number of sensor sites, rows of historical data, and specific measurement columns are unknown.
• Geographic coverage is limited to the state of Iowa, which may not represent conditions in other regions.

Provenance

Source

State of Iowa Roadway Weather Information System (RWIS).

Collection Method

Collected live from RWIS environmental sensor stations.

Time Range

Live/current, temporal coverage of historical archive is unknown.

Freshness

Updated every 10 minutes.

Geography

State of Iowa, United States.