Alert archive / Ohio / Flash Flood Warnings in 2021

Flash Flood Warning 67, NWS Charleston, WV

June 21, 20214 counties in Ohio

NWS Charleston, WV issued this flash flood warning at Jun 21, 2021, 7:05 PM EDT for 4 counties in Ohio. It was in force for 4 hr. 1 report 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: Jun 21, 2021, 7:05 PM EDT (23:05 UTC)
Expired: Jun 21, 2021, 11:00 PM EDT
In force: 4 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

Counties Gallia County, OH, Jackson County, OH, Meigs County, OH, Vinton County, OH

The radar

The Charleston,WV radar (KRLX), 107 km from the middle of the area, began a volume at 23:06 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
Jun 21, 8:00 PM EDT	FLASH FLOOD	3 Nnw Wilkesville, OH	STATE ROUTE 160 AFFECTED BY FLASH FLOODING IN THREE DIFFERENT LOCATIONS. ALSO STATE ROUTE 124 RESTRICTED FOR A TIME DUE TO FLASH FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.1 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1320 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 785 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 308 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

As transmitted.

460 
WGUS51 KRLX 212305
FFWRLX
OHC053-079-105-163-220300-
/O.NEW.KRLX.FF.W.0067.210621T2305Z-210622T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
705 PM EDT Mon Jun 21 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  North Central Gallia County in southeastern Ohio...
  Northeastern Jackson County in southeastern Ohio...
  Northwestern Meigs County in southeastern Ohio...
  Southeastern Vinton County in southeastern Ohio...

* Until 1100 PM EDT.

* At 705 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2 and 3 inches of rain have fallen. Additional rainfall amounts of 
  0.5 to 1.5 inches are possible in the warned area. Flash flooding 
  is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Wellston, Coalton, Wilkesville, Radcliffe and Salem Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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 3919 8232 3920 8230 3901 8222 3900 8232
      3904 8244 3909 8263 3909 8264 3910 8265

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

RPY

2 follow-up statements

093 
WGUS71 KRLX 220114
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
914 PM EDT Mon Jun 21 2021

OHC053-079-105-163-220300-
/O.CON.KRLX.FF.W.0067.000000T0000Z-210622T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gallia OH-Jackson OH-Meigs OH-Vinton OH-
914 PM EDT Mon Jun 21 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING FOR NORTH CENTRAL GALLIA, NORTHEASTERN JACKSON, NORTHWESTERN 
MEIGS AND SOUTHEASTERN VINTON COUNTIES...

At 914 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms produced heavy rain across the warned area. Between 2 
and 4 inches of rain have fallen. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Wellston, Coalton, Wilkesville, Radcliffe and Salem Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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 3919 8232 3920 8230 3901 8222 3900 8232
      3904 8244 3909 8263 3909 8264 3910 8265

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

RPY

785 
WGUS71 KRLX 220254
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1054 PM EDT Mon Jun 21 2021

OHC053-079-105-163-220304-
/O.EXP.KRLX.FF.W.0067.000000T0000Z-210622T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gallia OH-Jackson OH-Meigs OH-Vinton OH-
1054 PM EDT Mon Jun 21 2021

...FLASH FLOOD WARNING WILL EXPIRE AT 11 PM EDT THIS EVENING FOR 
NORTH CENTRAL GALLIA, NORTHEASTERN JACKSON, NORTHWESTERN MEIGS AND 
SOUTHEASTERN VINTON COUNTIES...

The Flash Flood warning is being allowed to expire as heavy rainfall 
has moved out of the area. Motorists should continue to be prepared 
for water or debris remaining on roadways. Please continue to heed 
remaining road closures.

LAT...LON 3919 8232 3920 8230 3901 8222 3900 8232
      3904 8244 3909 8263 3909 8264 3910 8265

$$

RPY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 3:13 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Washington	47 min
Jun 21, 3:24 PM EDT	Special Weather Statement	RLX	Athens, Meigs, Vinton	36 min
Jun 21, 3:48 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Washington	42 min
Jun 21, 3:53 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Jackson, Meigs, Vinton	28 min
Jun 21, 4:05 PM EDT	Severe Thunderstorm Warning	RLX	Washington	40 min
Jun 21, 4:16 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Meigs	29 min
Jun 21, 4:19 PM EDT	Tornado Warning	RLX	Washington	26 min
Jun 21, 4:36 PM EDT	Tornado Warning	RLX	Athens, Meigs	24 min
Jun 21, 4:41 PM EDT	Severe Thunderstorm Warning	RLX	Washington	35 min
Jun 21, 4:45 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Gallia, Meigs, Washington	45 min
Jun 21, 5:24 PM EDT	Flash Flood Warning	RLX	Athens, Gallia, Meigs, Washington	4 hr
Jun 21, 7:01 PM EDT	Flash Flood Warning	RLX	Athens, Gallia, Jackson, Meigs, Vinton, Washington	4 hr

Nearby

Flash Flood Warnings in Ohio, 2021 Every 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.