HYDROLOGIC OUTLOOK
Warning Issue Date: 755 PM CST WED DEC 23 2009
THE SPOON RIVER.
THE FOLLOWING FLOOD FORECASTS ARE BASED ON RAINFALL LAST 24 HOURS AND
EXPECTED RAINFALL OVER THE NEXT 24 HOURS. THERE IS SOME UNCERTAINTY IN THE
CREST FORECASTS AT THIS TIME AND SO THEY WILL LIKELY BE ADJUSTED ONCE
THE RAINFALL IS FINISHED.
FOR THE SPOON RIVER AT LONDON MILLS...THE LATEST STAGE IS 5.4 FEET AT
7 PM WEDNESDAY. FLOOD STAGE IS 15.0 FEET. MINOR FLOODING IS
FORECAST...WITH A CREST OF 19.0 FEET EARLY SATURDAY MORNING...WHICH
IS 4.0 FEET ABOVE FLOOD STAGE. THE RIVER SHOULD RISE ABOVE THE FLOOD
STAGE OF 15.0 FEET TOMORROW EVENING. THE RIVER SHOULD FALL BELOW
FLOOD STAGE SUNDAY AFTERNOON. AT 21.0 FEET...DAMAGE BEGINS TO SOME
RESIDENCES IN LONDON MILLS.
FOR THE SPOON RIVER AT SEVILLE...THE LATEST STAGE IS 9.5 FEET AT 7 PM
WEDNESDAY. FLOOD STAGE IS 22.0 FEET. NO FLOODING IS FORECAST. AT 22.0
FEET...WATER BEGINS TO FLOOD AGRICULTURAL AREAS NEAR THE RIVER.
FLD OBSERVED FORECAST 6AM
LOCATION STG STG DAY TIME THU FRI SAT
SPOON RIVER
LONDON MILLS 15 5.4 WED 7 PM 9.0 17.4 18.8
SEVILLE 22 9.5 WED 7 PM 12.0 19.3 21.8
$$
FLOOD WATCH
Warning Issue Date: 356 AM CST THU DEC 24 2009
...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...
THE FLOOD WATCH CONTINUES FOR
* PORTIONS OF CENTRAL ILLINOIS...EAST CENTRAL ILLINOIS AND
SOUTHEAST ILLINOIS...INCLUDING THE FOLLOWING AREAS...IN
CENTRAL ILLINOIS...CASS...CHRISTIAN...DE WITT...FULTON...
KNOX...LOGAN...MACON...MARSHALL...MASON...MCLEAN...MENARD...
MORGAN...MOULTRIE...PEORIA...PIATT...SANGAMON...SCHUYLER...
SCOTT...SHELBY...STARK...TAZEWELL AND WOODFORD. IN EAST
CENTRAL ILLINOIS...CHAMPAIGN...CLARK...COLES...CUMBERLAND...
DOUGLAS...EDGAR AND VERMILION. IN SOUTHEAST ILLINOIS...CLAY...
CRAWFORD...EFFINGHAM...JASPER...LAWRENCE AND RICHLAND.
* THROUGH THIS EVENING
* EXPECT PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL WITH
ISOLATED THUNDERSTORMS. RAINFALL AMOUNTS OF 2 TO 3 INCHES WILL
BE POSSIBLE...WITH SOME LOCALLY HIGHER AMOUNTS.
* THE LATEST SOIL TEMPERATURES ACROSS CENTRAL ILLINOIS INDICATE
THE FROST DEPTH AT BETWEEN 3 TO 5 INCHES. THE COMBINATION OF
THE EXPECTED RAINFALL COUPLED WITH THE FROZEN TOPSOIL WILL
HELP TO PRODUCE SIGNIFICANT RUNOFF INTO AREA RIVERS...CREEKS
AND STREAMS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
$$
SHIMON
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