069  
WWUS73 KDMX 191334  
NPWDMX  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DES MOINES IA  
834 AM CDT TUE SEP 19 2017  
   
..DENSE FOG LIKELY OVER CENTRAL IOWA THROUGH MID MORNING
 
 
.AREAS OF DENSE FOG WITH NEAR ZERO VISIBILITY CONTINUE OVER MUCH  
OF CENTRAL IOWA THIS MORNING. VISIBILITIES HAVE EXHIBITED LITTLE  
TO NO RECOVERY SO FAR THIS MORNING, THUS THE ADVISORY HAS BEEN  
EXTENDED THROUGH 10 AM. GRADUALLY IMPROVING CONDITIONS ARE  
EXPECTED AS THE FOG BEGINS TO DISSIPATE BY MID TO LATE MORNING.  
 
IAZ007-016-017-025>028-036>039-047>050-059>062-072>075-082>086-  
093>097-191500-  
/O.EXT.KDMX.FG.Y.0020.000000T0000Z-170919T1500Z/  
WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER-HAMILTON-  
HARDIN-GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-DALLAS-POLK-  
JASPER-POWESHIEK-MADISON-WARREN-MARION-MAHASKA-UNION-CLARKE-LUCAS-  
MONROE-WAPELLO-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-  
INCLUDING THE CITIES OF NORTHWOOD, MANLY, GARNER, BRITT, KANAWHA,  
MASON CITY, CLEAR LAKE, EAGLE GROVE, CLARION, BELMOND, HAMPTON,  
PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON, ALLISON,  
DUMONT, WAVERLY, WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY,  
GRUNDY CENTER, REINBECK, CONRAD, DIKE, WELLSBURG, WATERLOO,  
CEDAR FALLS, BOONE, AMES, MARSHALLTOWN, TAMA, TOLEDO, TRAER,  
DYSART, GLADBROOK, PERRY, WAUKEE, ADEL, DES MOINES, NEWTON,  
GRINNELL, WINTERSET, EARLHAM, INDIANOLA, NORWALK, CARLISLE,  
PELLA, KNOXVILLE, OSKALOOSA, CRESTON, OSCEOLA, CHARITON, ALBIA,  
OTTUMWA, MOUNT AYR, LAMONI, LEON, CORYDON, SEYMOUR, ALLERTON,  
HUMESTON, CENTERVILLE, AND BLOOMFIELD  
834 AM CDT TUE SEP 19 2017  
 
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS  
MORNING...  
 
* VISIBILITY...EXPECT FOG WITH VISIBILITY TO UNDER ONE QUARTER  
MILE. PATCHY TO AREAS OF FOG ARE LIKELY. VISIBILITIES WILL  
OFTEN BE A QUARTER MILE OR LESS.  
 
* IMPACTS...TRAVEL WILL BE SLOWED AND HAZARDOUS OVERNIGHT WITH  
DRAMATICALLY REDUCED VISIBILITIES. BE CAUTIOUS NEAR  
INTERSECTIONS...RAILROAD CROSSINGS AND BUS STOPS. ALLOW EXTRA  
STOPPING DISTANCE BETWEEN YOU AND THE VEHICLE IN FRONT OF YOU.  
 
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 LOW BEAM HEADLIGHTS, AND LEAVE PLENTY OF DISTANCE AHEAD OF  
YOU.  
 

 
 

 
 
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