Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 57, NWS Paducah, KY

August 30, 2021Daviess County, Kentucky

NWS Paducah, KY issued this flash flood warning at Aug 30, 2021, 3:03 PM CDT for Daviess County, Kentucky. It was in force for 117 min. 3 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 30, 2021, 3:03 PM CDT (20:03 UTC)
Expired
Aug 30, 2021, 5:00 PM CDT
In force
117 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

County Daviess County, KY

The radar

The Evansville,IN radar (KVWX), 78 km from the middle of the area, began a volume at 20:03 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

TimeReportWhereRemark
Aug 30, 3:20 PM CDTFLASH FLOODOwensboro, KYSEVERE STREET FLOODING IN CENTRAL OWENSBORO. AT LEAST ONE CAR WAS STALLED IN FLOOD WATER. FOUND ON THE SNAPMAP.
Aug 30, 4:30 PM CDTHEAVY RAIN 2.294 Ne Owensboro, KYRAINFALL TOTAL FROM THIS AFTERNOON MEASURED AT COOP SITE ON EAST SIDE OF TOWN.
Aug 30, 4:30 PM CDTHEAVY RAIN 2.294 Ne Owensboro, KYRAINFALL TOTAL FROM THIS AFTERNOON MEASURED AT COOP SITE ON EAST SIDE OF TOWN. THE PERIOD OF THE HEAVY RAIN EVENT WAS 24 HOURS.

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 12:00Z, 8.1 hours before the alert went out and 188 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 437 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
437 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

048 
WGUS53 KPAH 302003
FFWPAH
KYC059-302200-
/O.NEW.KPAH.FF.W.0057.210830T2003Z-210830T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
303 PM CDT Mon Aug 30 2021

The National Weather Service in Paducah has issued a

* Flash Flood Warning for...
  Central Daviess County in northwestern Kentucky...

* Until 500 PM CDT.

* At 303 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. The expected rainfall rate is 
  1.5 to 3 inches in 1 hour. 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...
  Owensboro.

This includes the following highways...
	Interstate 165 between Mile Markers 69 and 70.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3781 8707 3782 8704 3777 8699 3773 8702
      3772 8706 3773 8714 3779 8713 3778 8712
      3779 8710 3780 8708

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1.5-3 INCHES IN 1 HOUR

$$

DWS
2 follow-up statements
513 
WGUS73 KPAH 302052
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
352 PM CDT Mon Aug 30 2021

KYC059-302200-
/O.CON.KPAH.FF.W.0057.000000T0000Z-210830T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Daviess KY-
352 PM CDT Mon Aug 30 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM CDT THIS 
AFTERNOON FOR CENTRAL DAVIESS COUNTY...

At 352 PM CDT, the public reported numerous streets flooded in 
central and eastern Owensboro. Between 2 and 3 inches of rain have 
fallen. Flash flooding is already occurring.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Public reported.

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...
  Owensboro.

This includes the following highways...
	Interstate 165 between Mile Markers 69 and 70.

The heaviest rains have come to an end, but it will take time for 
the flooding to recede.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3781 8707 3782 8704 3777 8699 3773 8702
      3772 8706 3773 8714 3779 8713 3778 8712
      3779 8710 3780 8708

FLASH FLOOD...OBSERVED

$$

DWS
744 
WGUS73 KPAH 302155
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
455 PM CDT Mon Aug 30 2021

KYC059-302205-
/O.EXP.KPAH.FF.W.0057.000000T0000Z-210830T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Daviess KY-
455 PM CDT Mon Aug 30 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 5 PM CDT THIS AFTERNOON FOR 
CENTRAL DAVIESS COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3781 8707 3782 8704 3777 8699 3773 8702
      3772 8706 3773 8714 3779 8713 3778 8712
      3779 8710 3780 8708

$$

SP

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 30, 2:42 AM CDTFlash Flood WatchPAHCalloway, Christian, Muhlenberg, Todd, Trigg35 hr

Nearby

Flash Flood Warnings in Kentucky, 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.