.NOW...
PATCHY FOG HAS DEVELOPED EARLY THIS MORNING...AND IS EXPECTED TO
PERSIST UNTIL SHORTLY AFTER DAYBREAK FOR MUCH OF NORTHERN ILLINOIS
AND NORTHWEST INDIANA. VISIBILITIES WILL GENERALLY BE A FEW
MILES...HOWEVER IN A FEW LOCATIONS VISIBILITIES COULD BE REDUCED
FURTHER TO AROUND ONE HALF MILE. SHORTLY AFTER DAYBREAK
VISIBILITIES WILL STEADILY IMPROVE.
