Alert archive / West Virginia / Flash Flood Watches in 2021

Flash Flood Watch 7, NWS Charleston, WV

September 15, 20214 counties in Kentucky; Gallia County, Lawrence County, Ohio; 5 counties in West Virginia

NWS Charleston, WV issued this flash flood watch at Sep 15, 2021, 9:04 AM EDT for 4 counties in Kentucky; Gallia County, Lawrence County, Ohio; 5 counties in West Virginia. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Sep 15, 2021, 9:04 AM EDT (13:04 UTC)
Expired
Sep 15, 2021, 8:00 PM EDT
In force
11 hr
Issued by
NWS Charleston, WV
Flood severity
None

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Gallia County, OH, Lawrence County, OH, Cabell County, WV, Lincoln County, WV, Mason County, WV, Putnam County, WV, Wayne County, WV

The radar

The Charleston,WV radar (KRLX), 65 km from the middle of the area, began a volume at 13:07 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, 1.1 hours before the alert went out and 161 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 2021-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 2021-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
39 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
1277 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

000 
WGUS61 KRLX 151304
FFARLX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Charleston WV
904 AM EDT Wed Sep 15 2021

KYZ101>103-105-OHZ086-087-WVZ005>007-014-152115-
/O.NEW.KRLX.FF.A.0007.210915T1304Z-210916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greenup-Carter-Boyd-Lawrence KY-Gallia-Lawrence OH-Wayne-Cabell-
Mason-Putnam-
Including the cities of Grayson Lake State Park, South Point,
Louisa, Flatwoods, Russell, Hurricane, Point Pleasant, Ironton,
Wayne, Gallipolis, Lake Vesuvius, Kenova, Carter Caves State Park,
Olive Hill, Yatesville Lake State Park, Raceland, New Haven,
Ashland, Ceredo, Cannonsburg, Teays Valley, Grayson, and Huntington
904 AM EDT Wed Sep 15 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The National Weather Service in Charleston has issued a

* Flash Flood Watch for portions of northeast Kentucky, southeast
  Ohio and West Virginia, including the following areas, in
  northeast Kentucky, Boyd, Carter, Greenup and Lawrence KY. In
  southeast Ohio, Gallia and Lawrence OH. In West Virginia, Cabell,
  Mason, Putnam and Wayne.

* Until 8 PM EDT this evening.

* Multiple rounds of showers and thunderstorms are expected today
  ahead of an approaching cold front. Heavy rain falling over the
  same areas may result in localized flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

GW
3 follow-up statements
202 
WGUS61 KRLX 151434
FFARLX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Charleston WV
1034 AM EDT Wed Sep 15 2021

WVZ013-152245-
/O.EXA.KRLX.FF.A.0007.000000T0000Z-210916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lincoln-
Including the cities of Hamlin, Harts, and Alum Creek
1034 AM EDT Wed Sep 15 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The National Weather Service in Charleston has expanded the

* Flash Flood Watch to include a portion of southern West Virginia, 
  including the following area, Lincoln.

* Until 8 PM EDT this evening.

* Multiple rounds of showers and storms are expected through early 
  this evening, as a cold approaches. Heavy rain falling over the 
  same areas may result in localized flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

KYZ101>103-105-OHZ086-087-WVZ005>007-014-152245-
/O.CON.KRLX.FF.A.0007.000000T0000Z-210916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greenup-Carter-Boyd-Lawrence KY-Gallia-Lawrence OH-Wayne-Cabell-
Mason-Putnam-
Including the cities of Grayson Lake State Park, South Point, 
Louisa, Flatwoods, Russell, Hurricane, Point Pleasant, Ironton, 
Wayne, Gallipolis, Lake Vesuvius, Kenova, Carter Caves State Park, 
Olive Hill, Yatesville Lake State Park, Raceland, New Haven, 
Ashland, Ceredo, Cannonsburg, Teays Valley, Grayson, and Huntington
1034 AM EDT Wed Sep 15 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The Flash Flood Watch continues for

* Portions of northeast Kentucky, southeast Ohio and West Virginia, 
  including the following areas, in northeast Kentucky, Boyd, 
  Carter, Greenup and Lawrence KY. In southeast Ohio, Gallia and 
  Lawrence OH. In West Virginia, Cabell, Mason, Putnam and Wayne.

* Until 8 PM EDT this evening.

* Multiple rounds of showers and storms are expected through early 
  this evening, as a cold approaches. Heavy rain falling over the 
  same areas may result in localized flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

30
773 
WGUS61 KRLX 151854
FFARLX

Flood Watch
National Weather Service Charleston WV
254 PM EDT Wed Sep 15 2021

KYZ101>103-105-OHZ086-087-WVZ005>007-013-014-160000-
/O.CON.KRLX.FF.A.0007.000000T0000Z-210916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greenup-Carter-Boyd-Lawrence KY-Gallia-Lawrence OH-Wayne-Cabell-
Mason-Lincoln-Putnam-
Including the cities of Grayson Lake State Park, South Point, 
Louisa, Flatwoods, Russell, Alum Creek, Hurricane, Point Pleasant, 
Ironton, Wayne, Gallipolis, Lake Vesuvius, Kenova, Carter Caves 
State Park, Olive Hill, Yatesville Lake State Park, Harts, Raceland, 
New Haven, Ashland, Ceredo, Cannonsburg, Hamlin, Teays Valley, 
Grayson, and Huntington
254 PM EDT Wed Sep 15 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The Flash Flood Watch continues for

* Portions of northeast Kentucky, southeast Ohio and West Virginia, 
  including the following areas, in northeast Kentucky, Boyd, 
  Carter, Greenup and Lawrence KY. In southeast Ohio, Gallia and 
  Lawrence OH. In West Virginia, Cabell, Lincoln, Mason, Putnam and 
  Wayne.

* Until 8 PM EDT this evening.

* Scattered showers and storms will continue through this evening, 
  as a cold front approaches. Heavy rain falling over the same areas 
  may result in localized flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
082 
WGUS61 KRLX 152359
FFARLX

Flood Watch
National Weather Service Charleston WV
759 PM EDT Wed Sep 15 2021

KYZ101>103-105-OHZ086-087-WVZ005>007-013-014-160100-
/O.EXP.KRLX.FF.A.0007.000000T0000Z-210916T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greenup-Carter-Boyd-Lawrence KY-Gallia-Lawrence OH-Wayne-Cabell-
Mason-Lincoln-Putnam-
Including the cities of Grayson Lake State Park, South Point, 
Louisa, Flatwoods, Russell, Alum Creek, Hurricane, Point Pleasant, 
Ironton, Wayne, Gallipolis, Lake Vesuvius, Kenova, Carter Caves 
State Park, Olive Hill, Yatesville Lake State Park, Harts, Raceland, 
New Haven, Ashland, Ceredo, Cannonsburg, Hamlin, Teays Valley, 
Grayson, and Huntington
759 PM EDT Wed Sep 15 2021

...FLASH FLOOD WATCH WILL EXPIRE AT 8 PM EDT THIS EVENING...

The Flash Flood Watch for portions of northeast Kentucky, southeast 
Ohio and West Virginia, including the following areas, in northeast 
Kentucky, Boyd, Carter, Greenup and Lawrence KY. In southeast Ohio, 
Gallia and Lawrence OH. In West Virginia, Cabell, Lincoln, Mason, 
Putnam and Wayne expires at 8 PM EDT this evening.

The Flood Watch is allowed to expire. Flooding is no longer expected 
to pose a threat. Please continue to heed remaining road closures.

$$

TRM

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 7:32 PM EDTSpecial Weather StatementRLXMorgan28 min
Sep 15, 3:33 PM EDTSpecial Weather StatementRLXMingo27 min
Sep 15, 3:36 PM EDTSpecial Weather StatementRLXUpshur24 min
Sep 15, 3:59 PM EDTSpecial Weather StatementRLXBarbour31 min
Sep 15, 4:36 PM EDTSpecial Weather StatementRLXTucker24 min
Sep 15, 4:54 PM EDTSpecial Weather StatementRLXUpshur36 min

Nearby

Flash Flood Watches in West Virginia, 2021Flash Flood Watches in Kentucky, 2021Flash Flood Watches in Ohio, 2021Every flash flood watch 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.