Alert archive / Illinois / Flash Flood Warnings in 2021
Flash Flood Warning 34, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Jul 16, 2021, 6:23 AM CDT for Jefferson County, Illinois. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 16, 2021, 6:23 AM CDT (11:23 UTC)
- Expired
- Jul 16, 2021, 12:30 PM CDT
- In force
- 6 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
County Jefferson County, IL
The radar
The Evansville,IN radar (KVWX), 109 km from the middle of the area, began a volume at 11:23 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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 11.4 hours before the alert went out and 202 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
- 8 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1218 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
513
WGUS53 KPAH 161123
FFWPAH
ILC081-161730-
/O.NEW.KPAH.FF.W.0034.210716T1123Z-210716T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
623 AM CDT Fri Jul 16 2021
The National Weather Service in Paducah has issued a
* Flash Flood Warning for...
Northern Jefferson County in south central Illinois...
* Until 1230 PM CDT Friday.
* At 623 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 3 inches of
rain have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the next hour or so. 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...
Mount Vernon, Woodlawn, Bluford and Dix.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3826 8914 3847 8914 3847 8870 3832 8870
FLASH FLOOD...RADAR INDICATED
$$
DAVEB2 follow-up statements
709
WGUS73 KPAH 161624
FFSPAH
Flash Flood Statement
National Weather Service Paducah KY
1124 AM CDT Fri Jul 16 2021
ILC081-161730-
/O.CON.KPAH.FF.W.0034.000000T0000Z-210716T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson IL-
1124 AM CDT Fri Jul 16 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT THIS
AFTERNOON FOR NORTHERN JEFFERSON COUNTY...
At 1124 AM CDT, At 9:50 AM, the Jefferson County Emergency Manager
reported no additional flooding, however, waters in and around the
county were still flowing and nearly full. At 11:20 AM, Doppler
radar indicated additional thunderstorms producing heavy rain and
moving into and through parts of the warned area. Localized
additional heavy rainfall amounts remain possible in the warned
area, so the flash flooding threat continues.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Mount Vernon, Woodlawn, Bluford and Dix.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3826 8914 3847 8914 3847 8870 3838 8870
3837 8870 3836 8870 3835 8870 3834 8870
3833 8870 3832 8870
FLASH FLOOD...RADAR INDICATED
$$
07625
WGUS73 KPAH 161735
FFSPAH
Flash Flood Statement
National Weather Service Paducah KY
1235 PM CDT Fri Jul 16 2021
ILC081-161745-
/O.EXP.KPAH.FF.W.0034.000000T0000Z-210716T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson IL-
1235 PM CDT Fri Jul 16 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR NORTHERN JEFFERSON COUNTY...
Please continue to heed remaining road closures.
LAT...LON 3826 8914 3847 8914 3847 8870 3838 8870
3837 8870 3836 8870 3835 8870 3834 8870
3833 8870 3832 8870
$$
07The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 10:01 PM CDT | Special Weather Statement | PAH | Franklin, Williamson | 44 min |
| Jul 15, 11:11 PM CDT | Areal Flood Advisory | PAH | Perry | 17 min |
| Jul 15, 11:28 PM CDT | Flash Flood Warning | PAH | Perry | 3 hr |
| Jul 16, 1:09 AM CDT | Flash Flood Warning | PAH | Franklin, Jefferson | 6 hr |
| Jul 16, 2:19 AM CDT | Flash Flood Warning | PAH | Perry | 6 hr |
| Jul 16, 7:52 AM CDT | Areal Flood Advisory | PAH | Jefferson, Saline | 4 min |
| Jul 16, 8:11 AM CDT | Areal Flood Advisory | PAH | Jefferson | 110 min |
| Jul 16, 12:14 PM CDT | Special Weather Statement | PAH | Jefferson | 46 min |
| Jul 16, 12:43 PM CDT | Areal Flood Advisory | PAH | Franklin, Hamilton, Jefferson, Wayne | 2 hr |
| Jul 16, 12:58 PM CDT | Special Weather Statement | PAH | Hamilton | 47 min |
| Jul 16, 1:21 PM CDT | Flash Flood Warning | PAH | Franklin, Hamilton, Jefferson | 114 min |
| Jul 16, 1:50 PM CDT | Areal Flood Advisory | PAH | Edwards, Wabash | 115 min |
| Jul 16, 2:04 PM CDT | Flash Flood Warning | PAH | Hamilton, Wayne, White | 116 min |
| Jul 16, 2:17 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash, White | 118 min |
| Jul 16, 2:28 PM CDT | Areal Flood Advisory | PAH | Jackson, Perry | 3 hr |
| Jul 16, 3:16 PM CDT | Areal Flood Advisory | PAH | Franklin, Hamilton, Jefferson, Wayne | 3 hr |
| Jul 16, 3:25 PM CDT | Flash Flood Warning | PAH | Franklin, Jackson, Jefferson, Perry | 3 hr |
| Jul 16, 4:04 PM CDT | Flash Flood Warning | PAH | Perry | 2 hr |
| Jul 16, 4:28 PM CDT | Flash Flood Warning | PAH | Franklin, Hamilton, Wayne | 3 hr |
| Jul 16, 4:46 PM CDT | Areal Flood Advisory | PAH | Jackson, Saline, Williamson | 119 min |
| Jul 16, 4:59 PM CDT | Flash Flood Warning | PAH | Edwards, Wabash, White | 3 hr |
| Jul 16, 6:12 PM CDT | Areal Flood Warning | PAH | Perry | 13 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.