Alert archive / Illinois / River Flood Warnings in 2021

River Flood Warning 21, NWS Lincoln, IL

May 10, 2021Piatt County, Illinois

NWS Lincoln, IL issued this river flood warning at May 10, 2021, 8:00 AM CDT for Piatt County, Illinois. It took effect at May 11, 2021, 3:00 AM CDT. It was in force for 16 hr.

The area

The outline as issued.

The facts

Issued: May 10, 2021, 8:00 AM CDT (13:00 UTC)
In effect from: May 11, 2021, 3:00 AM CDT
Expired: May 11, 2021, 7:10 PM CDT
In force: 16 hr
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 12:59 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 12.52 ft at May 12, 2021, 5:00 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.

312 
WGUS43 KILX 101300
FLWILX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Lincoln IL
800 AM CDT Mon May 10 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.

For the Sangamon River...including Monticello, Riverton, Petersburg, 
Oakford, Chandlerville...Minor flooding is forecast.

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.


ILC147-110500-
/O.NEW.KILX.FL.W.0021.210511T0800Z-210513T0600Z/
/MNTI2.1.ER.210511T0800Z.210512T0000Z.210513T0000Z.NO/
800 AM CDT Mon May 10 2021

The National Weather Service in Lincoln has issued a

* Flood Warning for
  the Sangamon River at Monticello.
* From late tonight to late Wednesday night.
* At 7:00 AM CDT Monday the stage was 11.2 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tonight to a crest of 13.5 feet tomorrow evening. It will then 
  fall below flood stage Wednesday evening.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.

&&


              Fld   Observed           Forecasts (7 am CDT)     
Location      Stg   Stg   Day/Time     Tue   Wed   Thu          

Sangamon River
Monticello    13.0  11.2  Mon 7 am CDT 13.2  13.4  12.6         





&&

LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
      4000 8874 4006 8861

$$

25

4 follow-up statements

224 
WGUS83 KILX 101940
FLSILX

Flood Statement
National Weather Service Lincoln IL
240 PM CDT Mon May 10 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.

For the Sangamon River...including Monticello, Riverton, Petersburg, 
Oakford, Chandlerville...Minor flooding is forecast.

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.


ILC147-111145-
/O.EXT.KILX.FL.W.0021.210511T1030Z-210513T0600Z/
/MNTI2.1.ER.210511T1030Z.210512T0000Z.210513T0000Z.NO/
240 PM CDT Mon May 10 2021

...The Flood Warning is now in effect until early Thursday morning...

The Flood Warning continues for
  the Sangamon River at Monticello.
* From late tonight to late Wednesday night.
* At 2:00 PM CDT Monday the stage was 11.6 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tonight to a crest of 13.5 feet tomorrow evening. It will then 
  fall below flood stage Wednesday evening.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.

&&


              Fld   Observed           Forecasts (1 pm CDT)     
Location      Stg   Stg   Day/Time     Tue   Wed   Thu          

Sangamon River
Monticello    13.0  11.6  Mon 2 pm CDT 13.4  13.2  12.3         





&&

LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
      4000 8874 4006 8861

$$

07

208 
WGUS83 KILX 110001
FLSILX

Flood Statement
National Weather Service Lincoln IL
701 PM CDT Mon May 10 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.

For the Sangamon River...including Monticello, Riverton, Petersburg, 
Oakford, Chandlerville...Minor flooding is forecast.

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.


ILC147-111615-
/O.EXT.KILX.FL.W.0021.210512T0000Z-210513T0000Z/
/MNTI2.1.ER.210512T0000Z.210512T0600Z.210512T1800Z.NO/
701 PM CDT Mon May 10 2021

...The Flood Warning is now in effect until Wednesday evening...

The Flood Warning continues for
  the Sangamon River at Monticello.
* From Tuesday evening to Wednesday evening.
* At 6:00 PM CDT Monday 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 
  tomorrow evening to a crest of 13.1 feet early Wednesday morning. 
  It will then fall below flood stage early Wednesday afternoon.
* Impact...At 13.0 feet, Flooding of agricultural areas begins.

&&


              Fld   Observed           Forecasts (7 pm CDT)     
Location      Stg   Stg   Day/Time     Tue   Wed   Thu          

Sangamon River
Monticello    13.0  11.7  Mon 6 pm CDT 13.0  12.8  11.8         





&&

LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
      4000 8874 4006 8861

$$

07

512 
WGUS83 KILX 111348
FLSILX

Flood Statement
National Weather Service Lincoln IL
848 AM CDT Tue May 11 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.

For the Sangamon River...including Monticello...Minor flooding is 
forecast.

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.


ILC147-120600-
/O.CON.KILX.FL.W.0021.210512T0000Z-210513T0000Z/
/MNTI2.1.ER.210513T0000Z.210513T0000Z.210513T0600Z.NO/
848 AM CDT Tue May 11 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Sangamon River at Monticello.
* From this evening to Wednesday evening.
* At 8:00 AM CDT Tuesday the stage was 12.0 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage 
  tomorrow evening to a crest of 13.0 feet tomorrow evening. It will 
  then fall below flood stage early Thursday 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  12.0  Tue 8 am CDT 12.8  12.9  12.3         





&&

LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
      4000 8874 4006 8861

$$

25

788 
WGUS83 KILX 120010
FLSILX

Flood Statement
National Weather Service Lincoln IL
710 PM CDT Tue May 11 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.

ILC147-120115-
/O.CAN.KILX.FL.W.0021.000000T0000Z-210512T0010Z/
/MNTI2.1.ER.210513T0000Z.210513T0000Z.210513T0600Z.NO/
710 PM CDT Tue May 11 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 7:00 PM CDT Tuesday the stage was 12.2 feet.
* Flood stage is 13.0 feet.
* Forecast...The river is expected to rise to a crest of 12.6 feet 
  tomorrow evening.

&&


              Fld   Observed           Forecasts (7 pm CDT)     
Location      Stg   Stg   Day/Time     Wed   Thu   Fri          

Sangamon River
Monticello    13.0  12.2  Tue 7 pm CDT 12.6  12.3  11.3         




&&

LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
      4000 8874 4006 8861

$$

07

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 8:25 PM CDT	River Flood Warning	ILX	Fulton, Knox	19 hr

Nearby

River Flood Warnings in Illinois, 2021 Every 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.