SPECIAL WEATHER STATEMENT/NATIONAL WEATHER SERVICE DES MOINES IA/ 356 PM CST WED JAN 18 2012

Counties: CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-WAYNE-APPANOOSE-DAVIS…

…BIG CHANGES HEADED FOR IOWA TONIGHT AND THURSDAY…

A WEATHER SYSTEM WILL PASS ACROSS THE AREA TONIGHT AND PRODUCE A BAND OF LIGHT SNOW BETWEEN THE HIGHWAY 20 AND INTERSTATE 80 CORRIDORS. AT THIS POINT IT APPEARS SNOWFALL AMOUNTS WILL BE AN INCH OR LESS BETWEEN HIGHWAY 30 AND INTERSTATE 80. THE BIGGER STORY WILL BE THE COLD AIR SURGING INTO THE STATE LATE TONIGHT THROUGH THURSDAY. LOWS WILL FALL INTO THE SINGLE DIGITS WITH SOME VERY COLD WIND CHILLS. PEOPLE WAKING UP THURSDAY MORNING WILL BE IN FOR A SURPRISE WITH A NORTH WIND AT 15 TO 25 MPH…AN INCH OF SNOW ON THE GROUND AND TEMPERATURES ABOUT 20 DEGREES COLDER THAN TODAY.

Counties…ADAMS-UNION-TAYLOR-RINGGOLD-DECATUR–

AT THIS POINT IT APPEARS THAT SOUTHERN IOWA WILL SEE FLURRIES TO A FEW TENTHS OF AN INCH. THE BIGGER STORY WILL BE THE COLD AIR SURGING INTO THE STATE LATE TONIGHT THROUGH THURSDAY. LOWS WILL FALL INTO THE 5 TO 10 DEGREES ABOVE ZERO RANGE WITH SOME VERY COLD WIND CHILLS. PEOPLE WAKING UP THURSDAY MORNING WILL BE IN FOR A SURPRISE WITH A NORTH WIND AT 15 TO 25 MPH…FLURRIES IN THE AIR AND TEMPERATURES ABOUT 20 DEGREES COLDER THAN TODAY.