Iowa Roadway Weather Information System Atmospheric Data

Live atmospheric measurements are collected from Roadway Weather Information System (RWIS) sites across Iowa. The data is provided by the State of Iowa and is updated every 10 minutes.

Use Cases

• Predict pavement temperature from air temperature and humidity readings.
• Analyze wind speed and direction patterns for localized weather forecasting.
• Monitor precipitation and visibility conditions for road safety alerts.
• Correlate atmospheric pressure changes with weather event onset.

Strengths

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

Limitations

• The specific number of stations, rows, and columns is unknown.
• Data coverage is limited to the state of Iowa, introducing geographic bias.

Provenance

Source

State of Iowa

Collection Method

Sensor measurements from Roadway Weather Information System (RWIS) sites.

Freshness

Updated every 10 minutes.

Geography

Iowa, United States.