NATIONAL WEATHER SERVICE DES MOINES IA 846 AM CST TUE FEB 26 2013 ...SNOW AND BLOWING SNOW TO AFFECT PORTIONS OF CENTRAL IOWA TODAY AND TONIGHT... .LOW PRESSURE WILL MOVE THROUGH ILLINOIS TODAY BRINGING SNOW TO PORTIONS OF CENTRAL IOWA TODAY INTO TONIGHT. INCREASING NORTH WINDS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW ACROSS THE AREA THROUGH THE DAY...WITH TRAVEL CONDITIONS BECOMING DIFFICULT IN MUCH OF THE HEADLINE AREA. IAZ038-039-048>050-059>061-071>073-081-082-092-262300- /O.EXA.KDMX.WW.Y.0003.000000T0000Z-130227T1200Z/ GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-DALLAS-POLK-JASPER-ADAIR- MADISON-WARREN-ADAMS-UNION-TAYLOR- INCLUDING THE CITIES OF...GRUNDY CENTER...WATERLOO...AMES... MARSHALLTOWN...TOLEDO...ADEL...DES MOINES...NEWTON...GREENFIELD... WINTERSET...INDIANOLA...CORNING...CRESTON...BEDFORD 846 AM CST TUE FEB 26 2013 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 6 AM CST WEDNESDAY. * SHORT TERM TRENDS...SNOW WILL CONTINUE ACROSS THE ADVISORY AREA THROUGH THE MORNING AND INTO THE AFTERNOON. THE SNOW WILL BE HEAVY AT TIMES WITH SNOWFALL RATES OF UP TO AN INCH PER HOUR. * STORM TOTAL SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED WITH THE HEAVIEST AMOUNTS ON THE SOUTHEAST SIDE OF THE ADVISORY. * WINDS/VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH HIGHER GUSTS ARE EXPECTED TO CAUSE BLOWING AND DRIFTING OF SNOW AND REDUCE VISIBILITY UNDER ONE QUARTER MILE AT TIMES THROUGHOUT MUCH OF TODAY. * IMPACTS...TRAVEL CONDITIONS WILL DETERIORATE QUICKLY AS THE SNOW CONTINUES THROUGH THE MORNING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITY WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.