HAZARDOUS WEATHER OUTLOOK
Issue Date: 555 AM CST THU DEC 24 2009
Expiration: 600 AM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL
AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS.
.DAY ONE...TODAY AND TONIGHT
AN AREA OF LOW PRESSURE OVER CENTRAL TEXAS THIS MORNING WILL MOVE
INTO NORTHERN ARKANSAS THIS AFTERNOON...AND TO NEAR ST LOUIS
OVERNIGHT...RAPIDLY STRENGTHENING AS IT MOVES NORTH. COLDER AIR TO THE
NORTHWEST WILL BE PULLED INTO EASTERN KANSAS AND MISSOURI THROUGHOUT
THE DAY...CAUSING RAIN SHOWERS THIS MORNING TO TRANSITION TO A WINTRY
MIX OF FREEZING RAIN AND SLEET THROUGHOUT THE DAY. THIS MIX WILL
GRADUALLY TRANSITION OVER TO ALL SNOW FROM WEST TO EAST LATER IN THE
AFTERNOON THROUGH THE OVERNIGHT HOURS. HOWEVER...BEFORE THIS
TRANSITION TAKES PLACE...SOME MINOR ICING MAY OCCUR...WITH THE
POSSIBILITY OF SIGNIFICANT SLEET ACCUMULATIONS FROM EAST CENTRAL
KANSAS THROUGH WESTERN AND NORTHERN MISSOURI LATER THIS AFTERNOON AND
EVENING. TEMPERATURES IN FAR NORTHWEST MISSOURI HAVE ALREADY FALLEN
BELOW FREEZING...WITH REPORTS OF FREEZING RAIN...SLEET...AND SNOW
ALREADY IN SOUTHEAST NEBRASKA. THIS FREEZING LINE WILL MOVE TO NEAR
THE I-35 CORRIDOR BY THE MID TO LATE MORNING HOURS...AND TO NEAR A
SEDALIA TO PRINCETON LINE BY SUNSET...SETTING THE STAGE FOR
WIDESPREAD MIXED WINTER PRECIPITATION.
EVENTUALLY THROUGH THE OVERNIGHT HOURS...THE ENTIRE OUTLOOK AREA WILL
TRANSITION TO ALL SNOW...WITH THE MOST PERSISTENT BAND OF MODERATE TO
HEAVY SNOW POSSIBLY ALIGNING JUST EAST OF THE I-35 CORRIDOR AND INTO
NORTHEAST MISSOURI. PERIODS OF LOCALLY MODERATE TO HEAVY SNOW MAY BE
POSSIBLE OVER PARTS OF THE OUTLOOK AREA...WITH A CONTINUED THREAT OF
SLEET OVERNIGHT INTO NORTHEAST MISSOURI. WEST TO NORTHWEST WINDS WILL
INCREASE SIGNIFICANTLY THIS EVENING...AND MAY REACH 25 TO 30 MPH WITH
HIGHER GUSTS...CREATING WIDESPREAD BLOWING AND DRIFTING OF SNOW.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
PERIODIC SNOW IS EXPECTED TO CONTINUE THROUGH THE DAY FRIDAY...AND
EVEN INTO SATURDAY...ESPECIALLY FOR LOCATIONS NORTH OF THE MISSOURI
RIVER. TOTAL SNOW AND SLEET ACCUMULATIONS BETWEEN THURSDAY AFTERNOON
AND SATURDAY MAY RANGE FROM ONLY A COUPLE INCHES OVER CENTRAL
MISSOURI...TO AS MUCH AS 8 TO 10 INCHES ALONG THE IOWA BORDER IN
NORTH CENTRAL MISSOURI. EXACERBATING THE WINTER STORM IMPACTS WILL BE
THE STRONG WESTERLY TO NORTHWESTERLY WINDS...WHICH WILL CONTINUE INTO
SATURDAY. SUSTAINED WINDS MAY REACH 25 TO 30 MPH WITH HIGHER GUSTS
ACROSS MUCH OF THE AREA...CREATING EXTENSIVE BLOWING AND DRIFTING OF
SNOW...SIGNIFICANTLY REDUCED VISIBILITIES...AND NEAR BLIZZARD
CONDITIONS. TRAVEL MAY BECOME EXTREMELY DANGEROUS TONIGHT THROUGH
FRIDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED...HOWEVER REPORTS OF MIXED
WINTER PRECIPITATION ONSET AND SNOWFALL TOTALS WOULD BE MUCH
APPRECIATED.
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