Counties: ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-
TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-INCLUDING THE CITIES OF...GREENFIELD...
WINTERSET...INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...
CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE...
BLOOMFIELD. 340 PM CST SUN JAN 22 2012

...DENSE FOG ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT CST TONIGHT.

* VISIBILITY...VISIBILITIES FREQUENTLY BELOW ONE QUARTER OF A MILE
  WITH VALUES APPROACHING ONLY A FEW HUNDRED FEET CAN BE EXPECTED
  THIS EVENING. CONDITIONS SHOULD IMPROVE BEHIND A COLD FRONT
  WHICH WILL PASS THROUGH THE AREA THIS EVENING.

* IMPACTS...VISIBILITIES BELOW ONE QUARTER OF A MILE WILL MAKE
  TRAVEL HAZARDOUS THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...
USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.