BULLETIN! BLIZZARD WARNING ISSUED FOR CASS & OTHER COUNTIES….

News, Weather

December 19th, 2012 by Ric Hanson

CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS- ADAIR-MADISON-ADAMS-UNION-TAYLOR & RINGGOLD COUNTIES….358 AM CST WED DEC 19 2012
BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON CST THURSDAY……WINTER STORM WARNING IS CANCELLED…
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A BLIZZARD WARNING…WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST THURSDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.

PRECIPITATION WILL OVERSPREAD WESTERN IOWA LATE THIS AFTERNOON. SNOW IS EXPECTED ALONG AND NORTH OF AN ATLANTIC THROUGH JEFFERSON LINE. RAIN IS EXPECTED IN SOUTHERN IOWA SOUTH OF A BEDFORD TO OSCEOLA LINE. IN BETWEEN…A RAIN AND SNOW MIX IS EXPECTED. THIS PRECIPITATION WILL CHANGE TO ALL SNOW THIS EVENING BEFORE ENDING THURSDAY MORNING.

6 TO 10 INCHES OF SNOW ARE FORECAST BY THURSDAY MORNING. THE HEAVIEST SNOW AXIS WILL BE ALONG A LINE FROM ATLANTIC TO ADEL. THE LOWEST AMOUNTS ARE EXPECTED NEAR THE MISSOURI BORDER. SNOW DRIFTS SEVERAL FEET DEEP WILL BE POSSIBLE GIVEN THE STRONG WINDS.

WINDS WILL BECOME VERY STRONG LATE TONIGHT FROM THE NORTH NORTHWEST. SUSTAINED WINDS OF 25 TO 35 MPH ARE EXPECTED WITH GUSTS OVER 45 MPH POSSIBLE. THE STRONGEST WINDS ARE EXPECTED A FROM MIDNIGHT THROUGH NOON THURSDAY. BLIZZARD CONDITIONS ARE EXPECTED AT TIMES WITH VISIBILITY REDUCED BELOW ONE QUARTER OF A MILE.
VERY DANGEROUS CONDITIONS ARE EXPECTED TO DEVELOP TONIGHT INTO THURSDAY MORNING. BE PREPARED FOR VERY DANGEROUS TRAVEL AND BLIZZARD CONDITIONS. IN RURAL AREAS ESPECIALLY…ONLY TRAVEL IF YOU MUST…OTHERWISE STAY SAFE AND STAY HOME.

MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT & PAGE COUNTIES...339 AM CST WED DEC 19 2012
WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS  AFTERNOON TO 6 AM CST THURSDAY...

LIGHT SNOW WILL SPREAD INTO THE AREA BY MID AFTERNOON…THEN BECOME MODERATE TO HEAVY BY LATE AFTERNOON INTO WEDNESDAY NIGHT. SNOW WILL BE DECREASING LATE WEDNESDAY NIGHT BUT STRONG WINDS WILL CONTINUE INTO THURSDAY MORNING. SNOW ACCUMULATIONS OF 6 TO 9 INCHES ARE LIKELY. LOCALLY HEAVIER AMOUNTS WILL BE POSSIBLE.
NORTHEAST WINDS WILL INCREASE TO 15 TO 25 MPH BY MID TO LATE AFTERNOON. NORTH WINDS OF 20 TO 30 MPH AND GUSTS TO 40 MPH ARE EXPECTED WEDNESDAY NIGHT INTO THURSDAY MORNING. WINDS WILL SLOWLY DECREASE LATER THURSDAY MORNING.

THE COMBINATION OF HEAVY SNOW AND STRONG WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW. THIS WILL CAUSE LOW VISIBILITIES FROM LATE WEDNESDAY AFTERNOON THROUGH WEDNESDAY NIGHT. WHITE-OUT CONDITIONS WILL BE POSSIBLE IN SOME LOCATIONS.