Fog Developing

...AREAS OF DENSE FOG DEVELOPING ACROSS PARTS OF CENTRAL THROUGH
EAST CENTRAL ILLINOIS THIS EVENING...

THE COMBINATION OF ABUNDANT LOW LEVEL MOISTURE...LIGHT WINDS AND
A MOSTLY CLEAR SKY HAS LED TO SOME PATCHY DENSE FOG OVER PARTS
OF CENTRAL ILLINOIS EARLY THIS EVENING. VISIBILITIES WILL BE 
BELOW A QUARTER MILE AT TIMES IN THESE AREAS...WITH CONDITIONS
SLOWLY DETERIORATING AS THE EVENING WEARS ON FURTHER TO THE EAST.

MOTORISTS SHOULD USE ADDITIONAL CAUTION WHEN DRIVING OVER CENTRAL
AND EAST CENTRAL ILLINOIS THIS EVENING...AS VISIBILITIES WILL
CHANGE QUICKLY OVER SHORT DISTANCES.