THE NATIONAL WEATHER SERVICE HAS ISSUED WINTER WEATHER ADVISORIES FOR PARTS OF WESTERN & S.W. IA. ON WEDNESDAY. IN HARRISON & SHELBY COUNTIES, THE ADVISORY IS IN EFFECT FROM 3-A.M. UNTIL 9-P.M.; THE ADVISORY RUNS FROM 6-A.M. UNTIL 9-PM FOR CASS, AUDUBON & CRAWFORD COUNTIES; IN POTTAWATTMIE MONTGOMERY & PAGE COUNTIES, THE ADVISORY IS IN EFFECT FROM 8-AM UNTIL 9-PM; IN ADAIR, ADAMS, RINGGOLD, TAYLOR & UNION COUNTIES THE ADVISORY RUNS FROM 9-A.M. UNTIL 9-PM.

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE DRIVING.

IN ADDITION, A WINTER STORM WARNING IS IN EFFECT FROM 6-AM UNTIL 9-PM WED. FOR SAC, CARROLL, GUTHRIE AND DALLAS COUNTIES, WHERE 4-TO 7-INCHES OF SNOW ARE POSSIBLE.

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT… FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

* TIMING…SNOW DEVELOPS LATE TONIGHT AND CONTINUES THROUGH WEDNESDAY.

* MAIN IMPACT…3 TO 5 INCHES OF SNOW COULD OCCUR OVER WESTERN IOWA, WITH 4-TO 7-INCHES OVER WEST CENTRAL AND CENTRAL IOWA.

* OTHER IMPACTS…SOUTHEAST WINDS BECOME NORTHEAST AND INCREASE TO 20 TO 30 MPH WHICH COULD AREAS OF BLOWING AND DRIFTING SNOW.