Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 24, NWS Charleston, WV

June 10, 2021Carter County, Greenup County, Kentucky

NWS Charleston, WV issued this flash flood warning at Jun 10, 2021, 4:54 PM EDT for Carter County, Greenup County, Kentucky. It was in force for 3 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
Jun 10, 2021, 4:54 PM EDT (20:54 UTC)
Expired
Jun 10, 2021, 8:00 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Carter County, KY, Greenup County, KY

The radar

The Jackson,KY radar (KJKL), 100 km from the middle of the area, began a volume at 20:55 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 120 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, Cncnati-Daytn, OH at 12:00Z on 2021-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Cncnati-Daytn, OH at 12:00Z on 2021-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
7 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

357 
WGUS51 KRLX 102054
FFWRLX
KYC043-089-110000-
/O.NEW.KRLX.FF.W.0024.210610T2054Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
454 PM EDT Thu Jun 10 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Northern Carter County in northeastern Kentucky...
  Southwestern Greenup County in northeastern Kentucky...

* Until 800 PM EDT.

* At 454 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1.5 inches of 
  rain have fallen. The expected rainfall rate is 1 to 4 inches in 1 
  hour. Additional rainfall amounts of 0.5 to 1 inch or more 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...
  Oldtown, Gesling, Greenbo Lake, Carter, Warnock, Brushart and 
  Hopewell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report Severe Weather to the National Weather Service by 
calling toll free, 800 401 9535, when you can do so safely. You may 
also report severe weather by posting your report to the Charleston 
West Virginia National Weather Service Facebook Page, or by using 
the Twitter Hashtag, NWSRLX.

&&

LAT...LON 3850 8317 3851 8317 3851 8316 3852 8316
      3852 8315 3853 8315 3853 8282 3842 8281
      3836 8298 3843 8323 3844 8321 3845 8321
      3845 8320 3846 8320 3847 8319 3848 8319
      3849 8319 3850 8319 3850 8318

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-4 INCHES IN 1 HOUR

$$

JZ
1 follow-up statement
289 
WGUS71 KRLX 110005
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
805 PM EDT Thu Jun 10 2021

KYC043-089-110015-
/O.EXP.KRLX.FF.W.0024.000000T0000Z-210611T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carter KY-Greenup KY-
805 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR NORTHERN CARTER AND 
SOUTHWESTERN GREENUP COUNTIES...

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

A Flash Flood Watch remains in effect until 800 PM EDT Friday for 
portions of northeast Kentucky, southeast Ohio and West Virginia.

LAT...LON 3850 8317 3851 8317 3851 8316 3852 8316
      3852 8315 3853 8315 3853 8282 3842 8281
      3836 8298 3843 8323 3844 8321 3845 8321
      3845 8320 3846 8320 3847 8319 3848 8319
      3849 8319 3850 8319 3850 8318

$$

JZ

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 9:59 AM EDTFlash Flood WatchRLXBoyd, Carter, Greenup, Lawrence36 hr
Jun 10, 4:47 PM EDTFlash Flood WarningRLXLawrence3 hr
Jun 10, 6:13 PM EDTFlash Flood WarningRLXCarter4 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.