HAZARDOUS WEATHER OUTLOOK
Issue Date: 329 PM CST SUN DEC 6 2009
Expiration: 500 AM CST MON DEC 07 2009
...HIGH IMPACT...DANGEROUS WINTER STORM TUESDAY INTO WEDNESDAY...
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST
CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST
MISSOURI.
.DAY ONE...TODAY AND TONIGHT
SNOW WILL DEVELOP LATE THIS AFTERNOON AND OVERSPREAD THE ENTIRE AREA
TONIGHT. THIS STORM WILL PRODUCE THE FIRST WIDESPREAD SNOW
ACCUMULATIONS OF THE SEASON. CURRENT INFORMATION SUGGESTS 2 TO 3
INCHES NORTH OF A MARENGO...IOWA TO GALENA...ILLINOIS LINE BY
SUNRISE MONDAY. SNOW AMOUNTS OF AN INCH OR LESS ARE POSSIBLE SOUTH
OF A FAIRFIELD...IOWA TO STERLING...ILLINOIS LINE.
THERE IS A POTENTIAL FOR SLICK ROADS DEVELOPING LATE TONIGHT AND
MONDAY MORNING WITH PAVEMENT TEMPERATURES AROUND FREEZING.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
TUESDAY AND WEDNESDAY...A HIGH IMPACT...DANGEROUS WINTER STORM WILL
MOVE OUT OF THE PLAINS INTO THE GREAT LAKES. THIS SYSTEM SHOULD
PRODUCE HEAVY SNOWFALL OF 6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS
POSSIBLE BY WEDNESDAY AFTERNOON. STRONG NORTHWEST WINDS OF 25 TO 35
MPH WITH GUSTS TO NEAR 50 MPH ARE POSSIBLE ON WEDNESDAY...WHICH WOULD
RESULT IN WIDESPREAD BLOWING SNOW AND LOW VISIBILITIES PRODUCING
DIFFICULT...IF NOT IMPOSSIBLE TRAVEL CONDITIONS AT TIMES. DEPENDING
ON THE EXACT TRACK AND STRENGTH OF THIS STORM...PORTIONS OF THE
FORECAST AREA COULD EXPERIENCE NEAR BLIZZARD TO BLIZZARD CONDITIONS
ON WEDNESDAY. A MIXTURE OF RAIN...SLEET...AND SNOW IS POSSIBLE SOUTH
OF HIGHWAY 34 ON TUESDAY AFTERNOON AS WARMER AIR IS PULLED
NORTHWARD...BUT THE PRECIPITATION WILL CHANGE TO ALL SNOW BY TUESDAY
NIGHT.
THIS IS A PARTICULARLY DANGEROUS STORM THAT COULD RESULT IN
PROLONGED POWER OUTAGES OVER LARGE AREAS AND DAMAGE FROM FALLEN TREES
OR LARGE TREE LIMBS. INTERESTED INDIVIDUALS SHOULD MONITOR THIS
PRODUCT FOR FURTHER UPDATES AND MORE SPECIFICS ON THIS POWERFUL
SYSTEM AND PLAN ACCORDINGLY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER REPORTS REGARDING SNOWFALL AMOUNTS AND WINTER WEATHER
IMPACTS WILL BE GREATLY APPRECIATED OVER THE NEXT SEVERAL DAYS.
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