Alert archive / Illinois / River Flood Warnings in 2021
River Flood Warning 47, NWS Lincoln, IL
NWS Lincoln, IL issued this river flood warning at Aug 13, 2021, 8:25 AM CDT for Piatt County, Illinois. It took effect at Aug 13, 2021, 9:50 PM CDT. It was in force for 4 days.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2021, 8:25 AM CDT (13:25 UTC)
- In effect from
- Aug 13, 2021, 9:50 PM CDT
- Expired
- Aug 18, 2021, 8:27 AM CDT
- In force
- 4 days
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- Minor
County Piatt County, IL
The radar
The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 13:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Sangamon River at Monticello (MNTI2). The gauge peaked at 16.09 ft at Aug 15, 2021, 8:00 PM CDT.
- Action stage
- 11 ft
- Minor stage
- 13 ft
- Moderate stage
- 17 ft
- Major stage
- 20 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05572000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
347
WGUS43 KILX 131325
FLWILX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Lincoln IL
825 AM CDT Fri Aug 13 2021
...The National Weather Service in Lincoln IL has issued a Flood
Warning for the following rivers in Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-140530-
/O.NEW.KILX.FL.W.0047.210814T0250Z-210817T0441Z/
/MNTI2.1.ER.210814T0250Z.210815T0600Z.210816T2240Z.NO/
825 AM CDT Fri Aug 13 2021
The National Weather Service in Lincoln has issued a
* Flood Warning for
the Sangamon River at Monticello.
* From this evening to late Monday evening.
* At 8:00 AM CDT Friday the stage was 7.0 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
this evening to a crest of 16.8 feet early Sunday morning. It will
then fall below flood stage Monday afternoon.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sat Sun Mon
Sangamon River
Monticello 13.0 7.0 Fri 8 am CDT 15.2 16.7 14.6
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Erwin12 follow-up statements
381
WGUS43 KILX 131459
FLWILX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Lincoln IL
959 AM CDT Fri Aug 13 2021
...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-140700-
/O.EXT.KILX.FL.W.0047.210814T0323Z-210817T0336Z/
/MNTI2.2.ER.210814T0323Z.210815T1200Z.210816T2136Z.NO/
959 AM CDT Fri Aug 13 2021
...Forecast flooding increased from Minor to Moderate severity and
increased in duration until late Monday evening...
The Flood Warning continues for
the Sangamon River at Monticello.
* From this evening to late Monday evening.
* At 9:00 AM CDT Friday the stage was 7.8 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
this evening to a crest of 17.5 feet Sunday morning. It will then
fall below flood stage Monday afternoon.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sat Sun Mon
Sangamon River
Monticello 13.0 7.8 Fri 9 am CDT 15.4 17.5 14.7
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Erwin171
WGUS83 KILX 140033
FLSILX
Flood Statement
National Weather Service Lincoln IL
733 PM CDT Fri Aug 13 2021
...The Flood Warning continues for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-141645-
/O.EXT.KILX.FL.W.0047.210814T0545Z-210817T0330Z/
/MNTI2.2.ER.210814T0545Z.210815T0600Z.210816T2130Z.NO/
733 PM CDT Fri Aug 13 2021
...The Flood Warning is now in effect until late Monday evening...
The Flood Warning continues for
the Sangamon River at Monticello.
* From late tonight to late Monday evening.
* At 6:00 PM CDT Friday the stage was 10.2 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 17.0 feet early Sunday
morning. It will then fall below flood stage Monday afternoon.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Sangamon River
Monticello 13.0 10.2 Fri 6 pm CDT 16.6 16.2 12.5
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
DRH766
WGUS83 KILX 141235
FLSILX
Flood Statement
National Weather Service Lincoln IL
735 AM CDT Sat Aug 14 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-150445-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210817T1443Z/
/MNTI2.1.ER.210814T1743Z.210815T1800Z.210817T0843Z.NO/
735 AM CDT Sat Aug 14 2021
...The Flood Warning is now in effect until late Tuesday morning...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until late Tuesday morning.
* At 7:00 AM CDT Saturday the stage was 11.0 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this
afternoon to a crest of 16.5 feet early tomorrow afternoon. It
will then fall below flood stage early Tuesday morning.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Sangamon River
Monticello 13.0 11.0 Sat 7 am CDT 16.3 15.9 12.4
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Ousley152
WGUS83 KILX 141934
FLSILX
Flood Statement
National Weather Service Lincoln IL
234 PM CDT Sat Aug 14 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-151145-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210817T2010Z/
/MNTI2.1.ER.210814T2251Z.210816T0000Z.210817T1410Z.NO/
234 PM CDT Sat Aug 14 2021
...The Flood Warning is now in effect until Tuesday afternoon...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until Tuesday afternoon.
* At 2:00 PM CDT Saturday the stage was 11.7 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
this afternoon to a crest of 16.5 feet tomorrow evening. It will
then fall below flood stage late Tuesday morning.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Sangamon River
Monticello 13.0 11.7 Sat 2 pm CDT 16.3 15.8 12.3
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Barnes564
WGUS83 KILX 150055
FLSILX
Flood Statement
National Weather Service Lincoln IL
755 PM CDT Sat Aug 14 2021
...The Flood Warning continues for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-151700-
/O.CON.KILX.FL.W.0047.000000T0000Z-210817T2010Z/
/MNTI2.1.ER.210815T0045Z.210816T0000Z.210817T1410Z.NO/
755 PM CDT Sat Aug 14 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until Tuesday afternoon.
* At 7:00 PM CDT Saturday the stage was 12.8 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 16.7 feet
tomorrow evening. It will then fall below flood stage late Tuesday
morning.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Sangamon River
Monticello 13.0 12.8 Sat 7 pm CDT 16.7 15.1 10.8
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Barnes024
WGUS83 KILX 151447
FLSILX
Flood Statement
National Weather Service Lincoln IL
947 AM CDT Sun Aug 15 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-160700-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210817T2200Z/
/MNTI2.1.ER.210815T0045Z.210816T0000Z.210817T1600Z.NO/
947 AM CDT Sun Aug 15 2021
...The Flood Warning is now in effect until Tuesday afternoon...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until Tuesday afternoon.
* At 9:00 AM CDT Sunday the stage was 15.8 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 AM CDT Sunday was 15.8 feet.
* Forecast...The river is expected to rise to a crest of 16.7 feet
this evening. It will then fall below flood stage late Tuesday
morning.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Mon Tue Wed
Sangamon River
Monticello 13.0 15.8 Sun 9 am CDT 16.3 13.6 9.7
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Ousley859
WGUS83 KILX 160047
FLSILX
Flood Statement
National Weather Service Lincoln IL
747 PM CDT Sun Aug 15 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-161700-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210818T0000Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210817T1800Z.NO/
747 PM CDT Sun Aug 15 2021
...The Flood Warning is now in effect until Tuesday evening...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until Tuesday evening.
* At 7:00 PM CDT Sunday the stage was 16.1 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 7:00 PM CDT Sunday was 16.1 feet.
* Forecast...The river is expected to remain near 16.1 feet through
tonight. It will then fall below flood stage early Tuesday
afternoon.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Mon Tue Wed
Sangamon River
Monticello 13.0 16.1 Sun 7 pm CDT 14.8 12.5 10.2
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Barnes883
WGUS83 KILX 161317
FLSILX
Flood Statement
National Weather Service Lincoln IL
817 AM CDT Mon Aug 16 2021
...The Flood Warning continues for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-170530-
/O.CON.KILX.FL.W.0047.000000T0000Z-210818T0000Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210817T1800Z.NO/
817 AM CDT Mon Aug 16 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until tomorrow evening.
* At 7:00 PM CDT Sunday the stage was 16.1 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 7:00 PM CDT Sunday was 16.1 feet.
* Forecast...The river is expected to crest at 16.1 feet early this
morning. It will then fall below flood stage early tomorrow
afternoon.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Sangamon River
Monticello 13.0 16.1 Sun 7 pm CDT 13.8 11.4 9.3
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Ousley542
WGUS83 KILX 170032
FLSILX
Flood Statement
National Weather Service Lincoln IL
732 PM CDT Mon Aug 16 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-171645-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210818T0700Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210818T0100Z.NO/
732 PM CDT Mon Aug 16 2021
...The Flood Warning is now in effect until early Wednesday
morning...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until early Wednesday morning.
* At 7:00 PM CDT Monday the stage was 15.0 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 7:00 PM CDT Monday was 16.1 feet.
* Forecast...The river is expected to fall below flood stage
tomorrow evening and continue falling to 7.2 feet Monday evening.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Sangamon River
Monticello 13.0 15.0 Mon 7 pm CDT 13.1 11.1 9.0
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Barnes967
WGUS83 KILX 171256
FLSILX
Flood Statement
National Weather Service Lincoln IL
756 AM CDT Tue Aug 17 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-180500-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210818T0712Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210818T0112Z.NO/
756 AM CDT Tue Aug 17 2021
...The Flood Warning is now in effect until just after midnight
tonight...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until just after midnight tonight.
* At 7:00 AM CDT Tuesday the stage was 14.3 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 7:00 AM CDT Tuesday was 15.7 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 7.2 feet Tuesday morning.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Sangamon River
Monticello 13.0 14.3 Tue 7 am CDT 12.2 9.8 8.4
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
DRH556
WGUS83 KILX 180013
FLSILX
Flood Statement
National Weather Service Lincoln IL
713 PM CDT Tue Aug 17 2021
...The Flood Warning is extended for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to prepare for
flooding. Stay tuned for further updates on this flooding situation.
&&
Additional information is available at www.weather.gov.
ILC147-181615-
/O.EXT.KILX.FL.W.0047.000000T0000Z-210818T1630Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210818T1030Z.NO/
713 PM CDT Tue Aug 17 2021
...The Flood Warning is now in effect until late tomorrow morning...
The Flood Warning continues for
the Sangamon River at Monticello.
* Until late tomorrow morning.
* At 7:00 PM CDT Tuesday the stage was 13.7 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 7:00 PM CDT Tuesday was 15.0 feet.
* Forecast...The river is expected to fall below flood stage late
tonight and continue falling to 7.1 feet Tuesday evening.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Sangamon River
Monticello 13.0 13.7 Tue 7 pm CDT 12.1 9.8 8.2
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Barnes173
WGUS83 KILX 181327
FLSILX
Flood Statement
National Weather Service Lincoln IL
827 AM CDT Wed Aug 18 2021
...The Flood Warning is cancelled for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
ILC147-181430-
/O.CAN.KILX.FL.W.0047.000000T0000Z-210818T1327Z/
/MNTI2.1.ER.210815T0045Z.210816T0600Z.210818T1030Z.NO/
827 AM CDT Wed Aug 18 2021
...The Flood Warning for the Sangamon River at Monticello has been
cancelled...
The Flood Warning is cancelled for
the Sangamon River at Monticello.
* At 8:00 AM CDT Wednesday the stage was 12.9 feet.
* Flood stage is 13.0 feet.
* Forecast...The river is expected to fall to 7.1 feet Wednesday
morning.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Thu Fri Sat
Sangamon River
Monticello 13.0 12.9 Wed 8 am CDT 11.1 9.6 8.5
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
DRHNearby
River Flood Warnings in Illinois, 2021Every river flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.