Alert archive / Illinois / Flash Flood Warnings in 2021
Flash Flood Warning 3, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 25, 2021, 1:44 AM CDT for Bureau County, Henry County, Illinois. It was in force for 6 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
- Jun 25, 2021, 1:44 AM CDT (06:44 UTC)
- Expired
- Jun 25, 2021, 7:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bureau County, IL, Henry County, IL
The radar
The Quad Cities radar (KDVN), 70 km from the middle of the area, began a volume at 06:43 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 25, 6:00 AM CDT | HEAVY RAIN 3.6 | 3 Ne Galva, IL | COCORAHS STATION IL-HY-13 GALVA 2.7 NE. |
| Jun 25, 6:32 AM CDT | HEAVY RAIN 2.59 | 2 Sse Ophiem, IL | COCORAHS STATION IL-HY-12 ALPHA 2.3 N. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 2.92 | 1 N Alpha, IL | COCORAHS STATION IL-HY-23 ALPHA 0.7 N. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 3.4 | 1 E Kewanee, IL | CO-OP OBSERVER STATION KEWI2 KEWANEE 1 E. |
| Jun 25, 7:00 AM CDT | HEAVY RAIN 4.1 | Woodhull, IL | COCORAHS STATION IL-HY-11 WOODHULL 0.3 ESE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 6.7 hours before the alert went out and 66 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
- 112 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 151 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
421
WGUS53 KDVN 250644
FFWDVN
ILC011-073-251230-
/O.NEW.KDVN.FF.W.0003.210625T0644Z-210625T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
144 AM CDT Fri Jun 25 2021
The National Weather Service in Quad Cities has issued a
* Flash Flood Warning for...
Southwestern Bureau County in north central Illinois...
Southern Henry IL County in northwestern Illinois...
* Until 730 AM CDT.
* At 144 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 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...
Kewanee, Cambridge, Galva, Tiskilwa, Woodhull, New Windsor, Alpha,
Andover, Lynn Center, Neponset, Milo, Bishop Hill, Kewanee
Municipal Airport, German Corner, Ulah, Nekoma, Henry County
Fairgrounds, Providence, Ophiem and Lone Tree Corners.
This includes the following highways...
Interstate 74 in Illinois between mile markers 23 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4131 9043 4131 8946 4115 8947 4115 8964
4123 8964 4123 8987 4115 8987 4115 9044
FLASH FLOOD...RADAR INDICATED
$$
McClure3 follow-up statements
142
WGUS73 KDVN 250745
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
245 AM CDT Fri Jun 25 2021
ILC011-073-251230-
/O.CON.KDVN.FF.W.0003.000000T0000Z-210625T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bureau IL-Henry IL IL-
245 AM CDT Fri Jun 25 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT THIS
MORNING FOR SOUTHWESTERN BUREAU AND SOUTHERN HENRY IL COUNTIES...
At 245 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 4 inches of rain have
fallen from around Woodhull to Kewanee in southern Henry County, and
from near Tiskilwa to Miloe and Neponset in Bureau County.
Additional rainfall amounts of 1 to 2 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...
Kewanee, Cambridge, Galva, Tiskilwa, Woodhull, New Windsor, Alpha,
Andover, Lynn Center, Neponset, Milo, Bishop Hill, Kewanee
Municipal Airport, German Corner, Ulah, Nekoma, Henry County
Fairgrounds, Providence, Ophiem and Lone Tree Corners.
This includes the following highways...
Interstate 74 in Illinois between mile markers 23 and 33.
This includes the following streams and drainages...
Walker Creek, Spring Creek, West Bureau Creek, Dugout Creek, West
Fork Spoon River, Pope Creek, Camp Creek, Indian Creek, Scholes
Branch, Spoon River, Parker Run, Tomahawk Creek, South Edwards
River, Edwards River, Rocky Run, Goose Creek, Silver Creek, Big
Bureau Creek, Fox Creek, East Fork Spoon River, Crow Creek, Mud
Creek, West Branch Indian Creek, North Pope Creek, Hillery Creek
and Senachwine Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4131 9043 4131 8946 4115 8947 4115 8964
4123 8964 4123 8987 4115 8987 4115 9044
FLASH FLOOD...RADAR INDICATED
$$
McClure117
WGUS73 KDVN 251009
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
509 AM CDT Fri Jun 25 2021
ILC011-073-251230-
/O.CON.KDVN.FF.W.0003.000000T0000Z-210625T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bureau IL-Henry IL IL-
509 AM CDT Fri Jun 25 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT THIS
MORNING FOR SOUTHWESTERN BUREAU AND SOUTHERN HENRY IL COUNTIES...
At 509 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 0.5 to 1 inch 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...
Kewanee, Cambridge, Galva, Tiskilwa, Woodhull, New Windsor, Alpha,
Andover, Lynn Center, Neponset, Milo, Bishop Hill, Kewanee
Municipal Airport, German Corner, Ulah, Nekoma, Henry County
Fairgrounds, Providence, Ophiem and Lone Tree Corners.
This includes the following highways...
Interstate 74 in Illinois between mile markers 23 and 33.
This includes the following streams and drainages...
Walker Creek, Spring Creek, West Bureau Creek, Dugout Creek, West
Fork Spoon River, Pope Creek, Camp Creek, Indian Creek, Scholes
Branch, Spoon River, Parker Run, Tomahawk Creek, South Edwards
River, Edwards River, Rocky Run, Goose Creek, Silver Creek, Big
Bureau Creek, Fox Creek, East Fork Spoon River, Crow Creek, Mud
Creek, West Branch Indian Creek, North Pope Creek, Hillery Creek
and Senachwine Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4131 9043 4131 8946 4115 8947 4115 8964
4123 8964 4123 8987 4115 8987 4115 9044
FLASH FLOOD...RADAR INDICATED
$$
Uttech440
WGUS73 KDVN 251228
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
728 AM CDT Fri Jun 25 2021
ILC011-073-251238-
/O.EXP.KDVN.FF.W.0003.000000T0000Z-210625T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bureau IL-Henry IL IL-
728 AM CDT Fri Jun 25 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 730 AM CDT THIS MORNING FOR
SOUTHWESTERN BUREAU AND SOUTHERN HENRY IL COUNTIES...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 700 AM CDT Saturday for
portions of Illinois and southeast Iowa.
LAT...LON 4131 9043 4131 8946 4115 8947 4115 8964
4123 8964 4123 8987 4115 8987 4115 9044
$$
GibbsThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 12:36 AM CDT | Special Weather Statement | DVN | Hancock, McDonough | 24 min |
| Jun 25, 1:24 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 51 min |
| Jun 25, 2:16 PM CDT | Special Weather Statement | DVN | Jo Daviess | 29 min |
| Jun 25, 2:34 PM CDT | Special Weather Statement | DVN | Stephenson | 41 min |
| Jun 25, 2:48 PM CDT | Special Weather Statement | DVN | Jo Daviess | 57 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.