664 
AWUS83 KDMX 190323
RWSDMX
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086-
092>097-190930-

WEATHER SUMMARY FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
923 PM CST MON JAN 18 2010

ONCE AGAIN...DENSE FOG ESTABLISHED ITSELF OVER THE STATE THIS
EVENING. VISIBILITIES WERE DOWN TO ONE QUARTER OF A MILE OR LESS
IN MANY PLACES. HIGH TEMPERATURES WERE IN THE 20S AND LOWER 30S.
BY MID EVENING...READINGS HAD DROPPED INTO THE SINGLE DIGITS OVER
THE NORTHWEST. WINDS WERE LIGHT AND FROM THE NORTH.

A RIDGE OF HIGH PRESSURE EXTENDING FROM MANITOBA...SOUTH THROUGH
WESTERN MINNESOTA INTO IOWA WILL MOVE EAST SLOWLY TONIGHT AND
TUESDAY. LOW PRESSURE WILL DEVELOP OVER SOUTHEAST COLORADO TUESDAY
AND MOVE INTO THE MIDDLE OHIO RIVER VALLEY BY THURSDAY NIGHT.

THE HIGH WILL BRING LIGHT WINDS TO THE REGION TONIGHT. MOISTURE
WILL REMAIN TRAPPED IN THE LOW LEVELS OF THE ATMOSPHERE TONIGHT
INTO TUESDAY MORNING. THIS WILL RESULT IN ANOTHER NIGHT OF
WIDESPREAD FOG AND VISIBILITY NEAR ZERO OVER IOWA AND SURROUNDING
STATES. ADVISORIES FOR DENSE FOG HAVE BEEN ISSUED FOR TONIGHT INTO
TUESDAY MORNING ACROSS ALL OF IOWA NEARBY AREAS WITH THE EXCEPTION
OF PARTS OF MINNESOTA WHERE SLIGHTLY DRIER AIR IS PRESENT.  

AS THE LOW FROM COLORADO MOVES EAST...FREEZING RAIN WILL
OVERSPREAD IOWA AND SURROUNDING AREAS ON TO THE NORTH ON WEDNESDAY.
THE FREEZING RAIN WILL LIKELY CHANGE TO RAIN OVER MISSOURI AND
KANSAS. THE FREEZING RAIN WILL CONTINUE INTO THURSDAY BEFORE
MOVING OFF. A SIGNIFICANT ICE ACCUMULATION IS POSSIBLE OVER A
FAIRLY LARGE SECTION OF IOWA NORTH OF U.S. HIGHWAY 34.

ANOTHER STORM SYSTEM WILL FOLLOW CLOSE BEHIND THE MIDWEEK SYSTEM
THIS COMING WEEKEND. THIS WEATHER SYSTEM IS LIKELY TO BE A STRONG
SYSTEM AS WELL. A MIXTURE OF PRECIPITATION WILL FALL OVER THE
UPPER MIDWEST...HOWEVER IT IS LIKELY TO BE EITHER RAIN OR SNOW
WITH A LOW PROBABILITY OF SIGNIFICANT ICING.

$$