Flood Potential Outlook
Issued by NWS Central Illinois

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FGUS73 KILX 141750
ESFILX
ILC009-017-025-033-057-079-095-101-113-123-125-129-137-143-147-
155-159-167-169-179-183-203-242100-

Probabilistic Hydrologic Outlook
National Weather Service Lincoln IL
1250 PM CDT Thu Mar 14 2024

...2024 Spring Flood and Water Resources Outlook Number 3...

...Near normal to below normal likelihood for flooding across
central and southeast Illinois this spring...

This flood outlook covers the Lincoln Hydrologic Service Area (HSA)
which encompasses 35 counties in central and southeast Illinois. It
includes the following rivers...

- Illinois River from Henry to Beardstown
- Spoon River from London Mills to Seville
- Mackinaw River at Congerville
- Sangamon River from Monticello to Chandlerville
- Salt Creek at Greenview
- Little Wabash River near Clay City
- Embarras River from Ste. Marie to Lawrenceville

These flood outlooks are issued in late winter and early spring, in
addition to the 7 day river forecasts that are issued when river
forecast locations are in flood or are forecast to rise above flood
stage. They are based on multi-season scenarios from more than 30
years of climatological data, current streamflows, soil conditions,
snow pack, as well as short/long range weather forecasts.


FLOOD OUTLOOK HIGHLIGHTS...

- Risk of flooding this spring is near normal to below normal across
central and southeast Illinois.

- Factors limiting flood potential this spring include: normal
to below normal streamflows, no local or upstream snowpack, thawed
soils, deep layer soil moisture deficits.

- Springtime rains expected to be the primary driver for flooding.


WINTER WEATHER REVIEW...

--December--

Statewide Temperatures/Precipitation:

Information, courtesy of the Illinois State Climatologist, shows that
the preliminary statewide average December temperature was 39.2
degrees, 7.6 degrees above normal and the 3rd warmest on record going
back to 1895. For the second time in three years, Illinois
experienced an extremely mild December. All but three days were
warmer than normal in Decatur, and several days in the second and
fourth weeks of the month were 10 to 20 degrees warmer than normal.

This was the 2nd warmest December in Rockford, the 3rd warmest in
Peoria, and the 4th warmest in Chicago and Moline. None of the more
than 120 NWS observing stations in Illinois recorded a low
temperature in the single digits. Many places hit the freezing mark
only a handful of nights.

December average temperatures ranged from the low 30s in northern
Illinois to the low 40s in southern Illinois, between 6 and 10
degrees above normal. The warmest place in the state was Du Quoin
with an average December temperature of 46.1 degrees. The coolest was
Stockton in Jo Daviess County with an average December temperature of
33.9 degrees. It is important to note that the nighttime low
temperatures in December were much higher than normal. The
preliminary average December minimum temperature is 32.2 degrees,
which would be the 2nd highest on record statewide.

The mild December weather broke 20 daily high maximum temperature
records and 99 daily high minimum temperature records across
Illinois! No daily low maximum or daily low minimum temperature
records were broken.

The preliminary statewide average total December precipitation was
2.99 inches, 0.56 inches above normal and the 30th wettest on record
statewide.

The first month of climatological winter brought a more active storm
track to the Midwest than for most of the fall. December total
precipitation ranged from just over 4 inches in parts of northern
Illinois to less than 1 inch in parts of far southern Illinois. Most
of northern Illinois was around 1 inch wetter than normal, while most
of the state south of interstate 64 was 1 to 3 inches drier than
normal in December.

As is often the case in milder Decembers, snowfall was hard to come
by across Illinois. Total snowfall ranged from around 4 inches in far
northwest Illinois to less than a tenth of an inch in southern
Illinois. This was between 1 and 8 inches below normal.

Local Temperatures/Precipitation/River Conditions:

Temperatures for December were above normal across the ILX Hydrologic
Service Area (HSA). They generally ranged from 7.5 degrees to 9
degrees above normal. Daily high temperatures ranged from the teens
to the upper 60s. Normal highs for December typically range from the
low 30s to the mid 40s. Low temperatures across the area ranged from
the mid 30s to the low 50s. They typically range from the teens to
the upper 20s.

Rainfall totals across most of the ILX HSA were above normal for the
month of December. However, far southeastern areas saw below normal
precipitation. Monthly precipitation ranged from 1.68 inches in
Hutsonville to 4.07 inches in Fisher. These totals ranged from 1.38
inches below normal to 1.62 inches above normal, respectively. This
equates to roughly 55 to 165 percent of normal precipitation for the
month.

The above normal precipitation in northern Illinois allowed for
drought improvement in those areas. In contrast, conditions worsened
across southern sections of the state, due to below normal
precipitation. While D0 (Abnormally Dry) and D1 (Moderate Drought)
conditions improved overall, areas of D2 (Severe Drought) expanded
from 6 percent to 19 percent month over month. This was most evident
across portions of west-central Illinois as well as the southern
third of the state.

With low streamflows and below normal soil moisture conditions, the
above normal December precipitation was not enough to cause flooding
issues across central and southeast Illinois.

U.S. Geological Survey (USGS) monthly average streamflow values for
December show overall near normal streamflows across mainly the
northern half of Illinois. Flows across the southern half of the
state were overall in the below normal to much below normal
categories.


--January--

Statewide Temperatures/Precipitation:

The Illinois State Climatologist notes that the preliminary statewide
average January temperature was 25.7 degrees, 1.0 degree above normal
and tied for the 57th coldest on record going back to 1895.

The very mild December weather spilled over into the new year as the
first 10 to 12 days of January had temperatures near to slightly
above normal. Extremely cold air moved into Illinois following a
series of winter storms and brought frigid weather across the state
for the middle part of the month. Daily temperature departures from
normal showed average temperatures were 10 to 30 degrees below
normal. Some of the coldest temperatures from that week included -25
degrees in Altona and -19 degrees in Moline. Strong northerly and
northwesterly winds added to the cold and pushed wind chills into the
-30 to -40 degree range. Water main breaks were reported across the
state, and several school districts closed for multiple days because
of the cold. Numerous deaths in the state were attributed to the cold
as well. Temperatures moderated in the final week of the month,
providing a well-deserved break from an Arctic winter.

January temperatures ranged from the low 20s in northern Illinois to
the mid 30s in southern Illinois. The southern half of the state was
1 to 3 degrees colder than normal. Despite the extreme cold mid-
month, northern Illinois was 1 to 2 degrees warmer than normal. The
coldest point in the state in January was Stockton in Jo Daviess
County at 20.1 degrees. The “warmest” point was Olmstead in Pulaski
County at 32.7 degrees.

The preliminary statewide average total January precipitation was
4.50 inches, 2.19 inches below normal and tied for the eighth wettest
on record statewide.

Precipitation was hard to come by for much of Illinois during the
last few months of 2023. Drought impacts are usually minimal in
winter, but there were many reports of unusually dry soils and low
streams and ponds at the start of the new year. While January did not
completely replenish all water lost last year, it took a big bite out
of the drought.

January total precipitation ranged from around 2.5 inches in
northwest Illinois to nearly 10 inches in far southern Illinois.
Everywhere in Illinois was wetter than normal in January, to the tune
of 1 to 4 inches, between 150 and 300 percent of normal monthly
precipitation. It was the eighth wettest January on record in
Champaign and Centralia, both with over 5 inches total.

Depending on where you are in Illinois, January is either the first
or second snowiest month of the year. If you live north or west of
the Illinois River, this was the case this past January. For the rest
of Illinois, January just brought more cold rain. Total January
snowfall ranged from less than half an inch in southern Illinois to
over 25 inches in northwest Illinois. The latter was 4 to 15 inches
above normal.

Most of the snow in January came immediately ahead of or during the
extreme cold in the middle of the month. Moline picked up more
snowfall between January 8 and January 18 than in all of 2023.
January was the second snowiest on record in Moline, only less than
2019. The 12th of January was also the second snowiest day on record
in Moline, with 15.4 inches. It was only less than on January 3,
1971.

The heavy snowfall in mid-January pushed the northwest corner of
Illinois 1 to 6 inches above normal on season-to-date snowfall.
Meanwhile, most of central and southern Illinois had 2 to 8 inches
below normal snowfall by that time.

Local Temperatures/Precipitation/River Conditions:

Temperature averages for January were overall near normal across the
ILX Hydrologic Service Area (HSA). Temperatures generally ranged from
1 degree below normal to 1 degree above. Daily high temperatures
ranged from the single digits below zero to the mid 50s. Normal highs
for January typically range into the low to mid 30s. Low temperatures
across the area ranged from low teens below zero to the mid 30s. They
typically range into the teens.

Liquid precipitation totals across the ILX HSA were well above normal
for the month of January. Monthly precipitation ranged from 2.87
inches in Mackinaw to 6.32 inches in Casey. These totals ranged from
0.70 to 3.07 inches above normal, respectively. This equates to
roughly 130 to 195 percent of normal precipitation for the month.

The above normal precipitation for January continued to erode drought
coverage across the state. Only areas of D0 (Abnormally Dry)
conditions remain across portions of southern and west-central
Illinois. Drought coverage dropped from to 54 to 17 percent of the
state.

With the above normal precipitation, we did see minor to moderate
river flooding. However, it was not widespread and began in the
latter half of the month. Flooding was seen along the Illinois River,
and portions of the Little Wabash and Sangamon rivers...and largely
continued into February.

Bitterly cold temperatures mid-month caused appreciable ice
development on area rivers. This was followed by a rapid warm-up
along with widespread heavy rain. The frozen ground led to
significant runoff, which caused area rivers to swell and
mechanically break up the ice. The higher flows caused downstream
movement of the ice. As a result, there were a few instances of ice
jams along portions of the Mackinaw and Sangamon Rivers. Thankfully,
impacts from these ice jams were minor and short-lived.

USGS monthly streamflow for January shows overall near normal
streamflows across mainly the southern half of Illinois as well as
areas in the northwest. Flows across remainder of the state were
overall in the above normal to much above normal categories.


--February--

Statewide Temperatures/Precipitation:

Information, courtesy of the Illinois State Climatologist, shows that
the preliminary statewide average February temperature was 39.4
degrees, 8.3 degrees above normal and the 3rd warmest on record going
back to 1895.

February average temperatures ranged from the mid-30s in northern
Illinois to the high 40s in southern Illinois, between 6 and 12
degrees above normal. Several stations saw daily high temperatures in
the 80s in February, including 83 degrees in Belleville and 80 in
Springfield. A strong cold front in the last week of the month
dropped temperatures from the 70s and 80s into the teens and 20s.
Several places saw 50 to 60 degree declines in less than 24 hours.
Overall, the warmest place in the state was Du Quoin, with an average
temperature of 49.1 degrees, and the coldest place was Stockton in Jo
Daviess County with an average temperature of 34.8 degrees.

The mild weather in February broke 186 daily high maximum temperature
records. These included a 75-degree high in DeKalb on February 28,
which beat the previous daily high record by a full 12 degrees. There
were also 43 daily high minimum temperature records broken. Twenty-
two locations in Illinois set new all-time February high temperature
records, including 77 degrees in Peoria, 77 in Charleston, 76 in
Moline, and 73 in Rockford. This past February was the warmest on
record in Chicago, Rockford, Moline, and Peoria. It was a top 5
warmest February virtually everywhere in the state.

The preliminary statewide average total February precipitation was
0.53 inches, 1.58 inches below normal and the 4th driest on record
statewide. Total February precipitation ranged from less than half an
inch in parts of western Illinois to around 3 inches in parts of
northern Illinois. Most of the state was 1 to 3 inches drier than
normal in February, while only a narrow stretch of northern Illinois
caught more than normal precipitation.

February was the 7th driest on record in Rockford (0.29 inches
total), the 8th driest in Moline (0.26 inches total), the 6th driest
in Springfield (0.51 inches total), the 3rd driest in Normal (0.14
inches total), the 3rd driest in Quincy (0.07 inches), and 4th driest
in Carbondale (0.74 inches). In fact, February tied for the 7th
driest month on record (for any month) in Quincy, whose record
stretches back to 1901.

February total snowfall ranged from less than two-tenths of an inch
in northwest Illinois to just over 5 inches in central Illinois. Only
the Interstate 70 corridor was above normal on February snowfall,
while most of northern Illinois was 4 to 10 inches below normal.

Local Temperatures/Precipitation/River Conditions:

Temperature averages for February were well above normal across the
ILX Hydrologic Service Area (HSA). Temperatures generally ranged from
7 to 11 degrees above normal. Daily high temperatures ranged from the
teens to the low 80s. Normal highs for February typically range into
the mid 30s to the mid 40s. Low temperatures across the area ranged
from the single digits to the low 50s. They typically range from the
teens to the upper 20s.

Rainfall totals across the ILX HSA were below normal for the month of
February. Monthly precipitation generally ranged from 0.16 inches in
Galesburg to 1.39 inches in Casey. These totals ranged from 1.71 to
1.21 inches below normal, respectively. This equates to roughly 10 to
55 percent of normal precipitation for the month.

The below normal precipitation for February caused a worsening of
drought conditions across much of Illinois. D0 (Abnormally Dry)
conditions expanded to nearly 75 percent of the state. We also saw a
reemergence of D1 (Moderate Drought) conditions, covering a little
over 7 percent. This was separated into 2 small pockets in west-
central and southwest Illinois.

There was flooding along the Illinois and Little Wabash Rivers that
carried over from January. However, all river flooding came to an end
by the third week of February. With the dry conditions, no further
flooding occurred across the area.

The USGS monthly streamflow for February shows overall near normal
streamflows across the northern half of Illinois with below normal to
much below normal streamflows across the southern half of the state.
The main exception was along portions of the Illinois river Basin,
where streamflows lingered in the much above normal category.


--March--

Local Temperatures/Precipitation/River Conditions:

Thus far, the month of March has seen daily average temperatures that
are well above normal. They generally range from around 8 to 11
degrees above average across the ILX Hydrologic Service Area (HSA).
In contrast, rainfall totals have been a mixed bag so far this March.
They were near normal to above normal across the northern half of
Illinois and below normal across the southern half. Overall, they
range from nearly a half inch below normal to around 1 inch above
normal across the ILX HSA.

Overall drought conditions have improved since the end of March. We
have seen some improvement in D0 (Abnormally Dry) conditions across
portions of central and northern Illinois. However, we did see some
expansion of D1 (Moderate Drought) conditions in west-central and
southern Illinois.


SOIL MOISTURE AND FROST DEPTH CONDITIONS...

Shallow soil moisture conditions across Illinois are near normal for
this time of year. However, deep layer soil conditions (down to 39
inches) continue to show an appreciable deficit across the entire
state.

Drought conditions in Illinois have notably improved through the
winter season as a whole. The drought recovery is thanks to overall
above normal temperatures that minimized periods of frozen soils in
addition to precipitation that fell in form of rain.

In late November, nearly 40 percent of Illinois was experiencing D0
(Abnormally Dry) conditions with about 40 percent in the D1 (Moderate
Drought) category...or worse. As of the latest drought monitor
issuance (March 14th), D0 conditions extended from west-central
Illinois into southern Illinois. There were also pockets of D1
conditions within those same areas. D0 covers nearly 35 percent of
the state with D1 covering a little more than 20 percent.

With overall above normal temperatures this winter, frost was
afforded little opportunity to develop or persist across the area.
One exception was the Arctic outbreak we had in mid-January. That
stretch of frigid temperatures caused frost to develop down to 6 to
10 inches across our service area. However, the return to above
normal temperatures quickly thawed the soils across the area and they
remain unchanged.

The lack of frost will allow for deeper infiltration of rainfall into
the soil. As a result, runoff potential will be reduced until soils
moisten up more thoroughly. If we get into a longer duration, wet
weather pattern then runoff potential and risk of flooding can
increase with time.


RIVER CONDITIONS...

River flooding has not been an issue thus far in March. Information,
courtesy of the U.S. Geological Survey (USGS), shows 14-day average
streamflows are overall near normal across most of central and
northern Illinois. Much of southern Illinois as well as portions of
west-central and northwest Illinois are in the below normal to much
below normal range.


WEATHER OUTLOOKS...

The 8 to 14 day outlook (Mar 21 to Mar 27) favors near normal
temperatures in Illinois. Above normal precipitation is slightly
favored over the same time period...with the highest likelihood
across far northern Illinois.

The most recent 90 day outlook for April / May / June favors
above normal temperatures across Illinois. Above normal precipitation
is slightly favored across far southeastern Illinois while no
dominant trends are noted for the remainder of the state.


FLOOD OUTLOOK SUMMARY...

The risk of flooding this spring is near normal to below normal
across central and southeast Illinois. Any flooding that does occur
would most likely be in the minor category with isolated moderate
flooding possible.

Currently, no river flooding is impacting Illinois as streamflows are
near normal to below normal. However, recent rains are expected to
cause some elevated flows in the near-term along area rivers, creeks
and streams. Soils are
thawed with shallow moisture conditions near normal. In contrast,
deeper soils continue to show an appreciable deficit. As a whole,
these
conditions are not contributory toward enhanced flood potential this
spring.

Spring rains will be the primary driver of flooding this year since
other hydrometeorological conditions are not significant contributing
factors. Again, expectations are for isolated minor to moderate
flooding this spring. However, if we get into a wet springtime
pattern then more widespread flooding is possible, but would most
likely be minor in severity.

--------------------------------------------------------------------

In Table 1 below...the current (CS) and historical (HS) or normal
probabilities of exceeding minor...moderate...and major flood stages
are listed for the valid time period.

CS values indicate the probability of reaching a flood category
based on current conditions.

HS values indicate the probability of reaching a flood category
based on historical or normal conditions.

When the value of CS is more than HS...the probability of
exceeding that level is higher than normal. When the value of CS is
less than HS...the probability of exceeding that level is lower
than normal.


...Table 1--Probabilities for minor...moderate and major flooding...
                    Valid Period:  03/18/2024 - 06/16/2024

                                       :    Current and Historical
                                       :     Chances of Exceeding
                                       :       Flood Categories
                                       :      as a Percentage (%)
                      Categorical      :
                   Flood Stages (FT)   :   Minor    Moderate   Major
Location           Minor   Mod   Major :  CS   HS   CS   HS   CS   HS
--------           -----  -----  ----- : ---  ---  ---  ---  ---  ---
:Illinois River
Henry               23.0   24.0   31.0 :  57   56   43   49   <5   <5
Peoria              18.0   22.0   28.0 :  66   64   27   30   <5   <5
Peoria L/D         447.0  449.0  455.0 :  56   55   28   33   <5   <5
Havana              14.0   17.0   23.0 :  88   84   65   61   12   16
Beardstown          14.0   18.0   28.0 :  86   81   53   55   <5    5
:Mackinaw River
Congerville         13.0   14.0   20.0 :  19   20   15   16   <5   <5
:Spoon River
London Mills        15.0   21.0   24.0 :  47   48    6   <5   <5   <5
Seville             22.0   25.0   30.0 :  35   40   20   16   <5   <5
:Sangamon River
Monticello          13.0   17.0   20.0 :  70   70    7    6   <5   <5
Riverton            23.0   26.0   29.0 :  16   13   <5   <5   <5   <5
Petersburg          23.0   24.0   33.0 :  22   25   18   17   <5   <5
:Salt Creek
Greenview           16.0   17.0   20.0 :  16   17   11   11    5   <5
:Sangamon River
Oakford            471.0  472.9  478.5 :  28   35   17   20   <5   <5
Chandlerville      456.6  459.0  462.0 :  44   47   21   21   <5   <5
:Embarras River
Lawrenceville       30.0   37.0   41.0 :  54   75   15   17   <5   <5
Ste. Marie          19.0   20.0   27.0 :  31   32   23   23   <5   <5
:Little Wabash River
Clay City           18.0   22.0   25.0 :  82   83   21   21   <5   <5
:Vermilion River
Danville            18.0   22.0   28.0 :  25   29   15   12   <5   <5

Legend
CS = Conditional Simulation (Current Outlook)
HS = Historical Simulation
FT = Feet

In Table 2 below...the 95 through 5 percent columns indicate the
probability of exceeding the listed stage levels (FT) for the valid
time period.

...Table 2--Exceedance Probabilities...

                               Chance of Exceeding Stages
                                  at Specific Locations
                          Valid Period: 03/18/2024 - 06/16/2024
Location              95%    90%    75%    50%    25%    10%     5%
--------            ------ ------ ------ ------ ------ ------ ------
:Illinois River
Henry                16.9   17.4   20.6   23.6   25.7   27.2   28.3
Peoria               13.4   13.6   16.8   19.9   22.2   23.5   24.9
Peoria L/D          439.4  440.3  444.1  447.3  449.7  450.8  452.2
Havana               13.7   13.8   15.5   18.4   21.2   23.6   25.5
Beardstown           13.1   13.5   15.2   18.3   23.2   25.3   27.1
:Mackinaw River
Congerville           3.8    5.2    6.4    9.2   11.5   16.0   16.4
:Spoon River
London Mills          6.4    8.5   10.5   14.2   18.2   20.2   22.3
Seville              10.7   12.3   15.0   18.6   24.3   26.1   28.6
:Sangamon River
Monticello           10.5   11.4   12.8   13.6   14.9   16.4   17.5
Riverton             12.4   14.9   17.0   18.5   21.7   23.8   25.9
Petersburg           10.7   12.4   14.3   16.2   21.5   25.7   27.2
:Salt Creek
Greenview             4.4    5.6    8.1   10.4   12.8   17.3   20.2
:Sangamon River
Oakford             461.6  463.4  465.8  468.0  471.6  473.9  475.5
Chandlerville       449.0  450.9  453.4  455.5  458.4  460.5  461.8
:Embarras River
Lawrenceville        23.4   24.5   26.8   30.6   34.0   38.4   40.8
Ste. Marie            6.5    8.7   11.3   16.6   19.7   21.6   22.7
:Little Wabash River
Clay City            11.9   16.3   19.4   20.4   21.7   22.9   24.4
:Vermilion River
Danville              7.4    8.0   10.3   13.9   17.8   24.1   25.7

In Table 3 below...the 95 through 5 percent columns indicate the
probability of falling below the listed stage levels (FT) for the
valid time period.

...Table 3--Nonexceedance Probabilities...

                            Chance of Falling Below Stages
                                 at Specific Locations
                          Valid Period: 03/18/2024 - 06/16/2024
Location              95%    90%    75%    50%    25%    10%     5%
--------            ------ ------ ------ ------ ------ ------ ------
:Illinois River
Henry                15.3   15.2   15.0   14.9   14.7   14.4   14.3
Peoria               12.4   12.3   12.1   12.0   10.7   10.6   10.6
Peoria L/D          434.2  433.8  432.6  432.0  431.0  430.3  430.0
Havana                7.6    7.3    6.0    5.6    5.0    4.9    4.8
Beardstown           10.7   10.4   10.1    9.8    9.6    9.1    9.1
:Mackinaw River
Congerville           1.8    1.7    1.4    1.3    1.1    1.0    0.9
:Spoon River
London Mills          3.6    3.4    3.1    2.7    2.4    2.1    1.9
Seville               7.0    6.8    6.3    6.0    5.6    5.2    4.9
:Sangamon River
Monticello            6.8    6.6    6.3    5.9    5.4    5.1    5.0
Riverton              7.0    6.6    5.7    4.9    4.3    3.9    3.6
Petersburg            7.3    6.8    6.3    5.7    5.4    5.2    5.1
:Salt Creek
Greenview             2.4    2.2    1.9    1.7    1.4    1.2    1.1
:Sangamon River
Oakford             458.9  458.4  457.8  457.3  456.9  456.5  456.4
Chandlerville       446.2  445.7  445.1  444.6  444.1  443.8  443.7
:Embarras River
Lawrenceville        18.3   18.2   17.9   17.7   17.3   17.1   17.0
Ste. Marie            2.5    2.4    2.2    2.0    1.6    1.5    1.4
:Little Wabash River
Clay City             6.4    5.7    5.2    4.8    4.3    3.8    3.4
:Vermilion River
Danville              3.7    3.7    3.5    3.3    3.1    2.9    2.8

These long-range probabilistic outlooks contain forecast values that
are calculated using multiple season scenarios from 30 or more years
of climatological data...including current conditions of the
river...soil moisture...snow cover...and 30 to 90 day long-range
outlooks of temperature and precipitation. By providing a range of
probabilities...the level of risk associated with long-range planning
decisions can be determined. These probabilistic forecasts are part
of the National Weather Service`s advanced hydrologic prediction
service.

--------------------------------------------------------------------

FLOOD TERMINOLOGY...

Minor flooding is used to indicate minimal or no property damage.
However, some public inconvenience is possible.

Moderate flooding is used to indicate some inundation of structures
and roads near the river. Transfer of property to a higher elevation
or another location may be necessary. Some evacuations may also be
required.

Major flooding is used to indicate extensive inundation and property
damage, usually characterized by the evacuation of people and
livestock and closure of both primary and secondary roads.


FOR MORE INFORMATION...

Visit our web page at www.weather.gov/ilx for more official NWS river
and weather information. To view graphical river information,
including forecasts, select Rivers and Lakes from along the top menu
bar. Graphics are available for all forecast points in the ILX
Hydrologic Service Area.

For 30 to 90 day temperature and precipitation outlooks, visit the
web page of the Climate Prediction Center at www.cpc.ncep.noaa.gov.
This is the third and final issuance of the 2024 Spring Flood Outlook
for central and southeast Illinois. The NOAA National Spring Flood
Outlook will be issued on Thursday, March 21st.

$$

DRH






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