Alert archive / Kentucky / Flash Flood Warnings in 2021
Flash Flood Warning 54, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Aug 21, 2021, 6:54 AM CDT for 4 counties in Kentucky; Massac County, Pope County, Illinois. It was in force for 5 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
- Aug 21, 2021, 6:54 AM CDT (11:54 UTC)
- Expired
- Aug 21, 2021, 11:41 AM CDT
- In force
- 5 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Massac County, IL, Pope County, IL, Calloway County, KY, Livingston County, KY, Marshall County, KY, McCracken County, KY
The radar
The Paducah radar (KPAH), 32 km from the middle of the area, began a volume at 11:57 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 |
|---|---|---|---|
| Aug 21, 7:00 AM CDT | FLASH FLOOD | 1 E Reidland, KY | LATE REPORT. RAINFALL TOTAL OF 3.47 INCHES THROUGH 7 AM. FLASH FLOODING OBSERVED IN THE REIDLAND AREA. CULVERTS OVERFLOWING INTO YARDS. |
| Aug 21, 7:40 AM CDT | FLASH FLOOD | 6 Sw Hamlin, KY | HWY 121 SOUTH OF NEW CONCORD IS CLOSED DUE TO WATER OVER THE ROAD. |
| Aug 21, 8:00 AM CDT | HEAVY RAIN 3.23 | Benton, KY | RAINFALL TOTAL SINCE MIDNIGHT. |
| Aug 21, 11:00 AM CDT | FLASH FLOOD | 5 Sw Hamlin, KY | LATE REPORT. BRIDGE WASHED AWAY IN THE NEW CONCORD AREA. PUBLIC REPORTS OF UP TO 7 INCHES OF RAIN FROM THIS EVENT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 11.9 hours before the alert went out and 190 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
- 689 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -1.1
The text
As transmitted.
443
WGUS53 KPAH 211154
FFWPAH
ILC127-151-KYC035-139-145-157-211800-
/O.NEW.KPAH.FF.W.0054.210821T1154Z-210821T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
654 AM CDT Sat Aug 21 2021
The National Weather Service in Paducah has issued a
* Flash Flood Warning for...
Massac County in southern Illinois...
Central Pope County in southern Illinois...
Calloway County in western Kentucky...
Livingston County in western Kentucky...
Eastern McCracken County in western Kentucky...
Marshall County in western Kentucky...
* Until 100 PM CDT Saturday.
* At 654 AM 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...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...
Paducah, Murray, Metropolis, Benton, Calvert City, Reidland, Lone
Oak, Brookport, Golconda, Ledbetter, Burna, Joy, New Columbia,
Hardin, Hazel, Grand Rivers, Smithland, Hamletsburg, Brewers and
Kirksey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3733 8889 3734 8871 3737 8871 3745 8841
3742 8842 3738 8837 3709 8823 3700 8821
3698 8824 3693 8819 3669 8807 3655 8803
3650 8805 3650 8835 3670 8849 3694 8848
3694 8864
FLASH FLOOD...RADAR INDICATED
$$
PAH2 follow-up statements
184
WGUS73 KPAH 211408
FFSPAH
Flash Flood Statement
National Weather Service Paducah KY
908 AM CDT Sat Aug 21 2021
ILC127-151-KYC035-139-145-157-211800-
/O.CON.KPAH.FF.W.0054.000000T0000Z-210821T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Massac IL-Pope IL-Calloway KY-Livingston KY-McCracken KY-Marshall KY-
908 AM CDT Sat Aug 21 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON FOR MASSAC, CENTRAL POPE, CALLOWAY, LIVINGSTON, EASTERN
MCCRACKEN AND MARSHALL COUNTIES...
At 908 AM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Portions of Hwy 121 in southeast
Calloway County are closed due to water covering the road. Up to 5
inches of rain has been reported in this area. Additional rainfall
amounts up to 1 inch are possible in the warned area.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Paducah, Murray, Metropolis, Benton, Calvert City, Reidland, Lone
Oak, Brookport, Golconda, Ledbetter, Burna, Joy, New Columbia,
Hardin, Hazel, Grand Rivers, Smithland, Hamletsburg, Brewers and
Kirksey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3733 8889 3734 8871 3737 8871 3745 8841
3742 8842 3738 8837 3709 8823 3700 8821
3698 8824 3693 8819 3669 8807 3655 8803
3650 8805 3650 8835 3670 8849 3694 8848
3694 8864
FLASH FLOOD...RADAR INDICATED
$$
SP810
WGUS73 KPAH 211641
FFSPAH
Flash Flood Statement
National Weather Service Paducah KY
1141 AM CDT Sat Aug 21 2021
ILC127-151-KYC035-139-145-157-211651-
/O.CAN.KPAH.FF.W.0054.000000T0000Z-210821T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Massac IL-Pope IL-Calloway KY-Livingston KY-McCracken KY-Marshall KY-
1141 AM CDT Sat Aug 21 2021
...FLASH FLOOD WARNING IS CANCELLED FOR MASSAC, CENTRAL POPE,
CALLOWAY, LIVINGSTON, EASTERN MCCRACKEN AND MARSHALL COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3733 8889 3734 8871 3737 8871 3745 8841
3742 8842 3738 8837 3709 8823 3700 8821
3698 8824 3693 8819 3669 8807 3655 8803
3650 8805 3650 8835 3670 8849 3694 8848
3694 8864
$$
SPThe office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 7:55 PM CDT | Areal Flood Advisory | PAH | Fulton, Hickman | 3 hr |
| Aug 20, 8:04 PM CDT | Areal Flood Advisory | PAH | Todd | 3 hr |
| Aug 21, 4:23 PM CDT | Special Weather Statement | PAH | Jackson | 37 min |
Nearby
Flash Flood Warnings in Kentucky, 2021Flash 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.