Update 11:15-a.m.: Winter Storm Watch Continues….

News, Weather

December 18th, 2012 by Ric Hanson

1115 AM CST TUE DEC 18 2012

WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY AFTERNOON

* TIMING…PRECIPITATION WILL OVERSPREAD CENTRAL IOWA WEDNESDAYAFTERNOON. SNOW IS EXPECTED ALONG AND NORTH OF AN ATLANTIC THROUGH BOONE TO WATERLOO LINE. RAIN IS EXPECTED IN SOUTHERN IOWA SOUTH OF A BEDFORD TO OSKALOOSA LINE. IN BETWEEN…A RAIN AND SNOW MIX IS EXPECTED. THIS PRECIPITATION WILL CHANGE TO ALL SNOW LATE WEDNESDAY EVENING BEFORE ENDING THURSDAY MORNING.

* STORM TOTAL SNOW ACCUMULATION…5 TO 8 INCHES OF SNOW IS EXPECTED IN THE WATCH AREA. LOCAL AMOUNTS OF UP TO 10 INCHES WILL BE VERY POSSIBLE WITH DRIFTS EVEN HIGHER.

* WINDS/VISIBILITY…WINDS WILL BECOME VERY STRONG WEDNESDAY NIGHT FROM THE NORTH NORTHWEST. SUSTAINED WINDS OF 25 TO 33 MPH ARE EXPECTED WITH GUSTS OVER 45 MPH POSSIBLE. THE STRONGEST WINDS ARE EXPECTED A FEW HOURS PRIOR TO DAYBREAK THROUGH NOON THURSDAY. BLIZZARD OR NEAR BLIZZARD CONDITIONS
MAY OCCUR WITH VISIBILITIES REDUCED BELOW ONE QUARTER OF A MILE FROM TIME TO TIME.

* IMPACTS...VERY DANGEROUS CONDITIONS ARE EXPECTED TO DEVELOP ON WEDNESDAY NIGHT INTO THURSDAY MORNING. BE PREPARED FOR VERY DIFFICULT TRAVEL AND BLIZZARD OR NEAR BLIZZARD CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW…SLEET…OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL…IN THIS CASE SNOW. CONTINUE TO MONITOR THE LATEST FORECASTS. IF FORECAST CONFIDENCE REGARDING THE STRONG WINDS CONTINUES TO INCREASE…THIS WATCH MAY BE UPGRADED TO A BLIZZARD WATCH TODAY.