Alert archive / Illinois / Flash Flood Warnings in 2021
Flash Flood Warning 33, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Oct 24, 2021, 5:03 AM CDT for Morgan County, Scott County, Illinois. It was in force for 3 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 24, 2021, 5:03 AM CDT (10:03 UTC)
- Expired
- Oct 24, 2021, 8:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Morgan County, IL, Scott County, IL
The radar
The Lincoln radar (KILX), 98 km from the middle of the area, began a volume at 10:02 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 24, 6:10 AM CDT | FLASH FLOOD | Jacksonville, IL | DELAYED REPORT. ROUTE STREET AND COUNTRY CLUB ROAD WERE BARRICADED DUE TO FLOOD WATER. |
| Oct 24, 6:50 AM CDT | HEAVY RAIN 3.58 | 1 Wnw South Jacksonvill, IL | COCORAHS STATION IL-MG-9 JACKSONVILLE 1.2 SW. |
| Oct 24, 6:55 AM CDT | HEAVY RAIN 2.72 | 1 Sw Jacksonville Airpo, IL | AWOS STATION KIJX JACKSONVILLE MUNI AP. |
| Oct 24, 7:00 AM CDT | HEAVY RAIN 3.59 | 2 E South Jacksonville, IL | COCORAHS STATION IL-MG-14 JACKSONVILLE 2.6 SE. |
| Oct 24, 7:00 AM CDT | HEAVY RAIN 3.6 | South Jacksonville, IL | CO-OP OBSERVER STATION JCKI2 JACKSONVILLE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 10.1 hours before the alert went out and 157 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1349 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
775
WGUS53 KILX 241003
FFWILX
ILC137-171-241300-
/O.NEW.KILX.FF.W.0033.211024T1003Z-211024T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
503 AM CDT Sun Oct 24 2021
The National Weather Service in Lincoln has issued a
* Flash Flood Warning for...
Morgan County in west central Illinois...
Northern Scott County in west central Illinois...
* Until 800 AM CDT.
* At 502 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 3 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Jacksonville, Alexander, Meredosia, Bluffs, Chapin, Arenzville,
Naples, Exeter, Literberry, South Jacksonville, Concord,
Lynnville, Jacksonville Municipal Airport, Lake Jacksonville,
Merritt, Riggston, Sinclair, Prentice and Oxville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3979 9060 3983 9057 3988 9058 3987 9000
3970 8998 3966 9001 3961 9013 3965 9024
3967 9057 3969 9064
FLASH FLOOD...RADAR INDICATED
$$
MJA2 follow-up statements
935
WGUS73 KILX 241239
FFSILX
Flash Flood Statement
National Weather Service Lincoln IL
739 AM CDT Sun Oct 24 2021
ILC137-171-241300-
/O.CON.KILX.FF.W.0033.000000T0000Z-211024T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morgan IL-Scott IL-
739 AM CDT Sun Oct 24 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING
FOR MORGAN AND NORTHERN SCOTT COUNTIES...
At 734 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 4 inches of rain have
fallen. Additional rainfall amounts of around an inch are possible
in the warned area. Flash flooding could be occurring or expected to
begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Jacksonville, Alexander, Meredosia, Bluffs, Chapin, Arenzville,
Naples, Exeter, Literberry, South Jacksonville, Concord,
Lynnville, Jacksonville Municipal Airport, Lake Jacksonville,
Merritt, Riggston, Sinclair, Prentice and Oxville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3979 9060 3983 9057 3988 9058 3987 9000
3970 8998 3966 9001 3961 9013 3965 9024
3967 9057 3969 9064
FLASH FLOOD...RADAR INDICATED
$$
Auten936
WGUS73 KILX 241259
FFSILX
Flash Flood Statement
National Weather Service Lincoln IL
759 AM CDT Sun Oct 24 2021
ILC137-171-241309-
/O.EXP.KILX.FF.W.0033.000000T0000Z-211024T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morgan IL-Scott IL-
759 AM CDT Sun Oct 24 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING FOR
MORGAN AND NORTHERN SCOTT COUNTIES...
Some of the heaviest rain has ended, but moderate rain still
continues. No reports of flash flooding have been reported across
the warned area at this time, so the warning was allowed to expire.
A Flash Flood Watch remains in effect until 700 AM CDT Monday for
portions of central Illinois, east central Illinois and west central
Illinois.
A Flood Watch remains in effect until 700 AM CDT Monday for portions
of central Illinois and west central Illinois.
LAT...LON 3979 9060 3983 9057 3988 9058 3987 9000
3970 8998 3966 9001 3961 9013 3965 9024
3967 9057 3969 9064
$$
AutenThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 6:15 AM CDT | Flood Watch | ILX | Macon, Morgan, Sangamon, Scott | 20 hr |
| Oct 24, 10:08 AM CDT | River Flood Warning | ILX | Piatt | 8 days |
| Oct 24, 3:35 PM CDT | Special Weather Statement | ILX | Fulton | 25 min |
| Oct 24, 4:00 PM CDT | Special Weather Statement | ILX | Peoria | 30 min |
| Oct 24, 5:00 PM CDT | Flash Flood Warning | ILX | Fulton, Schuyler | 3 hr |
| Oct 24, 5:39 PM CDT | Special Weather Statement | ILX | McLean | 51 min |
| Oct 24, 5:39 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Mason, Morgan, Sangamon, Schuyler, Scott | 51 min |
| Oct 24, 5:56 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard, Morgan, Sangamon, Scott | 49 min |
| Oct 24, 6:06 PM CDT | Tornado Warning | ILX | Cass, Morgan, Scott | 24 min |
| Oct 24, 6:26 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, McLean, Vermilion | 34 min |
| Oct 24, 6:28 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Mason, Menard, Morgan, Sangamon, Tazewell | 62 min |
| Oct 24, 6:37 PM CDT | Flash Flood Warning | ILX | Cass, Morgan, Scott | 3 hr |
| Oct 24, 6:38 PM CDT | Tornado Warning | ILX | Menard, Sangamon | 26 min |
Nearby
Flash Flood Warnings in Illinois, 2021Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.