HYDROLOGIC OUTLOOK
Issue Date: 414 AM CST TUE DEC 22 2009
Expiration: 400 PM CST TUE DEC 22 2009

...HEAVY RAINFALL AND FLOODING POSSIBLE WEDNESDAY AND THURSDAY...
A LARGE STORM SYSTEM IS EXPECTED TO BRING PERIODS OF MODERATE AND
HEAVY RAINFALL TO MISSOURI AND ILLINOIS ON WEDNESDAY AND
THURSDAY. IN ADDITION TO THE RAIN...THUNDERSTORMS ARE EXPECTED
WHICH WILL LEAD TO ENHANCED RAINFALL RATES AND THE POTENTIAL OF
FLASH FLOODING.
GENERALLY 1 TO 2 INCHES OF RAINFALL IS EXPECTED AREAWIDE FROM THIS
STORM SYSTEM WITH LOCALLY HIGHER AMOUNTS...UP TO 4 INCHES...WHERE
THUNDERSTORMS ARE OBSERVED.
LATEST SOIL TEMPERATURE OBSERVATIONS INDICATE THAT THE FROST DEPTH
CURRENTLY RANGES FROM 8 INCHES ACROSS NORTHEAST MISSOURI AND WEST
CENTRAL ILLINOIS TO 2 INCHES ACROSS PORTIONS OF THE EASTERN OZARKS
AND SOUTHWEST ILLINOIS.
THE FROZEN SURFACE OF THE SOIL AND LACK OF VEGETATION WILL CAUSE
MUCH OF THE RAINFALL TO BECOME RUNOFF INTO CREEKS...STREAMS AND
RIVERS. INTENSE RAINFALL RATES FROM THUNDERSTORMS ON A FROZEN
SURFACE COULD CERTAINLY LEAD TO FLASH FLOODING OF LOW LYING
AREAS.
PEOPLE LIVING OR TRAVELING NEAR CREEKS...STREAMS...OR LOW LYING
FLOOD PRONE AREAS SHOULD CLOSELY MONITOR WEATHER CONDITIONS THIS
WEEK. IT IS ESPECIALLY IMPORTANT FOR THOSE WITH PROPERTY ALONG
RIVERS TO STAY ABREAST OF THE LATEST INFORMATION FROM THE NATIONAL
WEATHER SERVICE.
$$
CVKING

HAZARDOUS WEATHER OUTLOOK
Issue Date: 533 AM CST TUE DEC 22 2009
Expiration: 545 AM CST WED DEC 23 2009

Expires:200912231145;;
FLUS43 KLSX 221133
HWOLSX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
533 AM CST TUE DEC 22 2009
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-231145-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
533 AM CST TUE DEC 22 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.
.DAY ONE...TODAY AND TONIGHT
THERE IS A CHANCE OF THUNDERSTORMS TONIGHT.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
MODERATE TO HEAVY RAINFALL...ALONG WITH SCATTERED THUNDERSTORMS...IS
EXPECTED WEDNESDAY THROUGH THURSDAY. RAINFALL TOTALS OF TWO TO
THREE INCHES OR GREATER ARE POSSIBLE. FLOODING MAY OCCUR AS THE
RAIN FALLS ON A FROZEN GROUND AND BECOMES RUNOFF INTO
CREEKS...STREAMS AND RIVERS.
GUSTY WINDS ARE EXPECTED THURSDAY NIGHT AND FRIDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.
&&
FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR
WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1
$$

SPECIAL WEATHER STATEMENT
Issue Date: 348 PM CST MON DEC 21 2009
Expiration: 600 AM CST TUE DEC 22 2009

...LARGE STORM SYSTEM TAKING AIM ON CENTRAL U.S. THIS WEEK...
A LARGE STORM SYSTEM IS EXPECTED TO MOVE ACROSS THE CENTRAL UNITED
STATES HEADING INTO THE CHRISTMAS HOLIDAY. THE TIMING AND
STRENGTH OF THE STORM IS SUCH THAT IT WILL HAVE A SIGNIFICANT
IMPACT ON HOLIDAY TRAVELERS. ANYONE PLANNING TRAVEL THROUGH THE
CENTRAL U.S. SHOULD CAREFULLY MONITOR THE LATEST FORECAST FROM THE
NATIONAL WEATHER SERVICE.
THE INITIAL STAGES OF THE STORM ARE EXPECTED TO BEGIN
IMPACTING THE MIDWEST ON TUESDAY. THE STORM WILL CONTINUE ITS
INFLUENCE OVER THE AREA WEDNESDAY AND THURSDAY...BEFORE EXITING
THE CENTRAL U.S. ON CHRISTMAS DAY. A WIDE VARIETY OF WEATHER IS
EXPECTED WITH THIS STORM SYSTEM FROM SNOW ACROSS THE CENTRAL
PLAINS AND UPPER MIDWEST TO SEVERE THUNDERSTORMS ACROSS THE LOWER
MISSISSIPPI RIVER VALLEY.
GIVEN THE CURRENT WEATHER DATA...THE MOST SIGNIFICANT WINTER
WEATHER WILL REMAIN WEST AND NORTH OF THE BI-STATE REGION THROUGH
THURSDAY. HOWEVER...HEAVY RAIN APPEARS LIKELY ACROSS THE AREA.
RAINFALL ACCUMULATIONS IN EXCESS OF 2 INCHES ARE POSSIBLE WITH
THIS STORM WITH LOCALLY HIGHER AMOUNTS. HEAVY RAIN ASSOCIATED WITH
THUNDERSTORMS ONTO FROZEN GROUND COULD PRODUCE LOCALIZED FLOODING.
THE RAIN WILL CHANGE TO SNOW ON THURSDAY NIGHT...AND THERE IS SOME
POTENTIAL FOR ACCUMULATING SNOW IN CENTRAL AND NORTHEAST MISSOURI
AND WEST CENTRAL ILLINOIS EARLY CHRISTMAS MORNING.
THERE IS STILL SOME UNCERTAINTY REGARDING THE EXACT TRACK OF THE
STORM SYSTEM AND THIS COULD HAVE SIGNIFICANT IMPACTS ON THE
LOCATION AND INTENSITY OF THE WINTER WEATHER CONDITIONS.
THEREFORE...THOSE TRAVELING ACROSS THE MIDWEST THIS HOLIDAY WEEK
ARE URGED TO CAREFULLY MONITOR THE LATEST FORECAST FROM THE
NATIONAL WEATHER SERVICE.
$$
CARNEY