Live Infrared & Visible Cloud Satellite — Illinois
The Illinois Cloud Cover Satellite provides visible and infrared atmospheric imagery showing cloud layer ceiling, fog formation, and overcast coverage over {state}. Track cloud cover density, ceiling altitude, and marine fog layers across Illinois with live infrared satellite radar scans. Data updates every 5 to 10 minutes from NOAA & NWS dual-polarization Doppler stations.
NWS Radar Station Infrastructure (Illinois)
Radar surveillance across Illinois relies on National Weather Service (NWS) NEXRAD WSR-88D Doppler stations including **KLOT** (Chicago / Romeoville Radar in Romeoville), **ILX** (Central Illinois Radar in Lincoln). These high-frequency microwave radar sites transmit pulsed radio beams every 4.5 to 10 minutes, generating real-time base reflectivity scans.
Active Station Callsigns
How to Read Cloud Cover Scale
Indicates light rain or atmospheric drizzle that usually does not impede travel.
Represents steady, moderate rainfall. Roads may experience pooling and reduced visibility.
Indicates torrential downpours, severe convective thunderstorms, lightning, or potential hail cores.
Regional Climate & Atmospheric Context
Illinois sits in the Midwest severe weather belt, marked by intense spring tornado outbreaks, derecho windstorms, summer flash flooding, and severe winter blizzards. Using S-band dual-polarization technology, radar pulses measure raindrop diameter and ice density to distinguish between light drizzle, torrential downpours, and hail.