HYDROLOGIC OUTLOOK
Warning Issue Date: 1204 PM CST FRI DEC 25 2009
THE ILLINOIS RIVER.
THE FOLLOWING FLOOD FORECASTS ARE BASED PRIMARILY ON 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 OBSERVED.
FOR THE ILLINOIS RIVER AT HENRY...THE LATEST STAGE IS 17.2 FEET AT
11 AM FRIDAY. FLOOD STAGE IS 23 FEET. MINOR FLOODING IS FORECAST...
WITH A CREST OF 23.6 FEET EARLY WEDNESDAY MORNING...WHICH IS 0.6 FEET
ABOVE FLOOD STAGE. THE RIVER SHOULD RISE ABOVE THE FLOOD STAGE OF
23 FEET MONDAY EVENING. AT 23 FEET...WATER BEGINS TO AFFECT THE
MARINA IN HENRY ALONG WITH MINOR FLOODING OF LAND ADJACENT TO THE
RIVER.
FOR THE ILLINOIS RIVER NEAR PEORIA...THE LATEST STAGE IS 12.4 FEET AT
11 AM FRIDAY. FLOOD STAGE IS 18 FEET. MINOR FLOODING IS FORECAST...
WITH A CREST OF 20.1 FEET WEDNESDAY AFTERNOON...WHICH IS 2.1 FEET
ABOVE FLOOD STAGE. THE RIVER SHOULD RISE ABOVE THE FLOOD STAGE OF
18 FEET EARLY MONDAY MORNING.
FLD OBSERVED FORECAST 6 AM
LOCATION STG STG DAY TIME SAT SUN MON
ILLINOIS RIVER
HENRY 23 17.2 FRI 11 AM 18.9 21.1 22.6
PEORIA 18 12.4 FRI 11 AM 14.3 16.5 18.3
$$
07
FLOOD WARNING
Warning Issue Date: 859 AM CST FRI DEC 25 2009
THE FLOOD WARNING CONTINUES FOR
THE MACKINAW RIVER NEAR CONGERVILLE.
* FROM THIS EVENING TO SATURDAY AFTERNOON.
* AT 845 AM FRIDAY THE STAGE WAS 12.4 FEET.
* FLOOD STAGE IS 13 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO
RISE TO NEAR 13.1 FEET BY MIDNIGHT TONIGHT. THE RIVER WILL
FALL BELOW FLOOD STAGE BY SATURDAY MORNING.
* IMPACT...AT 13 FEET...WIDESPREAD AGRICULTURAL FLOODING OCCURS.
FLD OBSERVED FORECAST 6AM
LOCATION STG STG DAY TIME SAT SUN MON
MACKINAW RIVER
CONGERVILLE 13 12.4 FRI 9 AM 13.0 10.7 8.1
$$
07
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