Alert archive / Illinois / Flash Flood Warnings in 2021
Flash Flood Warning 11, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jun 26, 2021, 3:25 PM CDT for 9 counties in Illinois. It was in force for 4 hr. 4 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
- Jun 26, 2021, 3:25 PM CDT (20:25 UTC)
- Expired
- Jun 26, 2021, 7:48 PM CDT
- In force
- 4 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeWitt County, IL, Logan County, IL, Macon County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Sangamon County, IL, Tazewell County, IL, Woodford County, IL
The radar
The Lincoln radar (KILX), 61 km from the middle of the area, began a volume at 20:28 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 |
|---|---|---|---|
| Jun 26, 4:00 PM CDT | HEAVY RAIN 1.62 | Nws Lincoln, IL | DAILY TOTAL AS OF 4PM, 1.43 FELL BETWEEN 1PM AND 4PM CDT. |
| Jun 26, 4:27 PM CDT | FLASH FLOOD | Downs, IL | I-74 IS FLOODED NEAR THE DOWNS EXIT. |
| Jun 26, 4:30 PM CDT | FLASH FLOOD | Bloomington, IL | SEVERAL INTERSECTIONS FLOODED. NUMEROUS CARS STRANDED REQUIRING TOW TRUCKS, BUT NO WATER RESCUES REPORTED. |
| Jun 26, 4:40 PM CDT | HEAVY RAIN 1.82 | 1 Ene Logan County Airp, IL | MEASURED FROM RAIN IN PAST 9 HOURS. |
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 12:00Z, 8.4 hours before the alert went out and 52 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
- 683 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 684 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted.
984
WGUS53 KILX 262025
FFWILX
ILC039-107-113-115-125-129-167-179-203-270115-
/O.NEW.KILX.FF.W.0011.210626T2025Z-210627T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lincoln IL
325 PM CDT Sat Jun 26 2021
The National Weather Service in Lincoln has issued a
* Flash Flood Warning for...
Western De Witt County in central Illinois...
Logan County in central Illinois...
McLean County in central Illinois...
Northwestern Macon County in central Illinois...
Southeastern Mason County in central Illinois...
Northeastern Menard County in central Illinois...
Sangamon County in central Illinois...
Southeastern Tazewell County in central Illinois...
Southeastern Woodford County in central Illinois...
* Until 815 PM CDT.
* At 324 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Bloomington, Lincoln, Clinton, Mason City, Normal, Le Roy,
Heyworth, El Paso, Lexington, Hudson, Chenoa, Atlanta, Mount
Pulaski, Gridley, Minier, Danvers, Colfax, Downs, Hopedale and
McLean.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 4032 8954 4060 8919 4079 8893 4075 8893
4075 8888 4076 8878 4076 8874 4076 8858
4069 8858 4067 8858 4065 8858 4065 8857
4061 8857 4061 8855 4061 8853 4061 8846
3993 8915 4004 8990
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1.5-2.5 INCHES IN 1 HOUR
$$
Barnes2 follow-up statements
417
WGUS73 KILX 262142
FFSILX
Flash Flood Statement
National Weather Service Lincoln IL
442 PM CDT Sat Jun 26 2021
ILC167-262152-
/O.CAN.KILX.FF.W.0011.000000T0000Z-210627T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sangamon IL-
442 PM CDT Sat Jun 26 2021
...FLASH FLOOD WARNING IS CANCELLED FOR ...
Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.
A Flash Flood Watch remains in effect until 700 AM CDT Sunday for
portions of central Illinois...east central Illinois and west
central Illinois.
LAT...LON 4032 8954 4060 8919 4079 8893 4075 8893
4075 8888 4076 8878 4076 8874 4076 8858
4069 8858 4067 8858 4065 8858 4065 8857
4061 8857 4061 8855 4061 8853 4061 8846
3993 8915 4004 8990
$$
ILC039-107-113-115-125-129-179-203-270115-
/O.CON.KILX.FF.W.0011.000000T0000Z-210627T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
De Witt IL-Logan IL-McLean IL-Macon IL-Mason IL-Menard IL-Tazewell
IL-Woodford IL-
442 PM CDT Sat Jun 26 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT THIS
EVENING FOR WESTERN DE WITT, LOGAN, MCLEAN, NORTHWESTERN MACON,
SOUTHEASTERN MASON, NORTHEASTERN MENARD, SOUTHEASTERN TAZEWELL AND
SOUTHEASTERN WOODFORD COUNTIES...
At 437 PM CDT, emergency management reported numerous flooded roads
in Bloomington-Normal, including a few stranded cars in high water.
The heaviest rain has ended: however, flash flooding will be ongoing
for the next couple of hours.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Emergency management.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Bloomington, Lincoln, Clinton, Mason City, Normal, Le Roy,
Heyworth, El Paso, Lexington, Hudson, Chenoa, Atlanta, Mount
Pulaski, Gridley, Minier, Danvers, Colfax, Downs, Hopedale and
McLean.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 4032 8954 4060 8919 4079 8893 4075 8893
4075 8888 4076 8878 4076 8874 4076 8858
4069 8858 4067 8858 4065 8858 4065 8857
4061 8857 4061 8855 4061 8853 4061 8846
3993 8915 4004 8990
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1.5-2.5 INCHES IN 1 HOUR
$$
Barnes695
WGUS73 KILX 270048
FFSILX
Flash Flood Statement
National Weather Service Lincoln IL
748 PM CDT Sat Jun 26 2021
ILC039-107-113-115-125-129-179-203-270058-
/O.CAN.KILX.FF.W.0011.000000T0000Z-210627T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
De Witt IL-Logan IL-McLean IL-Macon IL-Mason IL-Menard IL-Tazewell
IL-Woodford IL-
748 PM CDT Sat Jun 26 2021
...FLASH FLOOD WARNING IS CANCELLED FOR WESTERN DE WITT, LOGAN,
MCLEAN, NORTHWESTERN MACON, SOUTHEASTERN MASON, NORTHEASTERN MENARD,
SOUTHEASTERN TAZEWELL AND SOUTHEASTERN WOODFORD COUNTIES...
The heavy rain has ended, though issues from rainfall over the past
few days continues. Please continue to heed remaining road closures.
LAT...LON 4032 8954 4060 8919 4079 8893 4075 8893
4075 8888 4076 8878 4076 8874 4076 8858
4069 8858 4067 8858 4065 8858 4065 8857
4061 8857 4061 8855 4061 8853 4061 8846
3993 8915 4004 8990
$$
NMBThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:21 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Tazewell | 39 min |
| Jun 25, 7:33 PM CDT | Special Weather Statement | ILX | McLean | 42 min |
| Jun 25, 7:38 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 67 min |
| Jun 25, 7:53 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Tazewell | 67 min |
| Jun 25, 8:16 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard, Morgan, Sangamon | 44 min |
| Jun 25, 8:29 PM CDT | Tornado Warning | ILX | McLean | 30 min |
| Jun 25, 8:49 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, McLean, Macon, Piatt | 41 min |
| Jun 25, 8:54 PM CDT | Flash Flood Warning | ILX | DeWitt, Logan, McLean, Mason, Tazewell | 6 hr |
| Jun 25, 9:05 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Menard, Tazewell | 25 min |
| Jun 25, 9:47 PM CDT | Flash Flood Warning | ILX | Morgan, Scott | 6 hr |
| Jun 25, 9:59 PM CDT | Flash Flood Warning | ILX | DeWitt, McLean, Piatt | 5 hr |
| Jun 25, 10:18 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Coles, DeWitt, Douglas, Macon, Moultrie and 1 more | 27 min |
| Jun 26, 2:34 AM CDT | Areal Flood Warning | ILX | DeWitt, Logan, McLean, Mason, Piatt, Tazewell | 61 hr |
| Jun 26, 6:03 AM CDT | River Flood Warning | ILX | Piatt | 8 days |
| Jun 26, 9:44 AM CDT | River Flood Warning | ILX | Mason, Menard | 4 days |
| Jun 26, 12:21 PM CDT | Tornado Warning | ILX | McLean | 24 min |
| Jun 26, 1:24 PM CDT | Tornado Warning | ILX | Morgan, Scott | 36 min |
| Jun 26, 1:53 PM CDT | Tornado Warning | ILX | Morgan | 37 min |
| Jun 26, 2:17 PM CDT | Tornado Warning | ILX | Morgan, Sangamon | 28 min |
| Jun 26, 2:38 PM CDT | Tornado Warning | ILX | McLean, Woodford | 37 min |
| Jun 26, 3:12 PM CDT | Tornado Warning | ILX | McLean | 33 min |
| Jun 26, 3:19 PM CDT | Tornado Warning | ILX | Logan, Sangamon | 26 min |
| Jun 26, 3:33 PM CDT | Severe Thunderstorm Warning | ILX | Logan | 27 min |
| Jun 26, 3:37 PM CDT | Tornado Warning | ILX | McLean | 23 min |
| Jun 26, 3:39 PM CDT | Tornado Warning | ILX | Logan, Sangamon | 36 min |
| Jun 26, 4:04 PM CDT | Tornado Warning | ILX | DeWitt | 26 min |
| Jun 26, 4:43 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, McLean, Piatt | 32 min |
| Jun 26, 5:16 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, DeWitt, McLean, Piatt | 44 min |
| Jun 26, 5:47 PM CDT | Tornado Warning | ILX | Douglas, Moultrie, Piatt | 43 min |
| Jun 26, 5:50 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 40 min |
| Jun 26, 6:03 PM CDT | Tornado Warning | ILX | Champaign, Douglas | 27 min |
| Jun 26, 6:24 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Edgar, Vermilion | 81 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.