Alert archive / Kentucky / Flash Flood Warnings in 2021

Flash Flood Warning 45, NWS Charleston, WV

June 11, 2021Carter County, Greenup County, Kentucky

NWS Charleston, WV issued this flash flood warning at Jun 11, 2021, 4:23 PM EDT for Carter County, Greenup County, Kentucky. It was in force for 4 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 11, 2021, 4:23 PM EDT (20:23 UTC)
Expired
Jun 11, 2021, 8:00 PM EDT
In force
4 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), 94 km from the middle of the area, began a volume at 20:25 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, 8.4 hours before the alert went out and 124 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 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 459 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 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
459 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

963 
WGUS51 KRLX 112023
FFWRLX
KYC043-089-120000-
/O.NEW.KRLX.FF.W.0045.210611T2023Z-210612T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
423 PM EDT Fri Jun 11 2021

The National Weather Service in Charleston has issued a

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

* Until 800 PM EDT.

* At 423 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 inches of 
  rain have fallen. The expected rainfall rate is 1 to 1.5 inches in 
  1 hour. 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...
  Olive Hill, Carter Caves State Park, Gesling and Carter.

This includes the following highways...
	Interstate 64 in Kentucky between mile markers 156 and 168.

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.

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 3835 8324 3838 8323 3840 8324 3843 8324
      3844 8321 3845 8321 3845 8320 3846 8320
      3847 8319 3850 8319 3850 8317 3851 8317
      3852 8315 3853 8315 3847 8302 3847 8292
      3835 8298 3829 8302 3832 8322 3835 8323

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

$$

JZ
1 follow-up statement
177 
WGUS71 KRLX 112353
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
753 PM EDT Fri Jun 11 2021

KYC043-089-120003-
/O.EXP.KRLX.FF.W.0045.000000T0000Z-210612T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carter KY-Greenup KY-
753 PM EDT Fri Jun 11 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING FOR 
NORTHWESTERN CARTER AND SOUTHWESTERN GREENUP 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.

A Flash Flood Watch remains in effect until 1200 AM EDT for portions 
of northeast Kentucky, southeast Ohio, southwest Virginia and West 
Virginia.

LAT...LON 3835 8324 3838 8323 3840 8324 3843 8324
      3844 8321 3845 8321 3845 8320 3846 8320
      3847 8319 3850 8319 3850 8317 3851 8317
      3852 8315 3853 8315 3847 8302 3847 8292
      3835 8298 3829 8302 3832 8322 3835 8323

$$

JZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 4:06 PM EDTSpecial Weather StatementRLXCarter39 min

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.