Alert archive / West Virginia / Flash Flood Watches in 2019

Flash Flood Watch 5, NWS Charleston, WV

July 7, 201918 counties in West Virginia; 4 counties in Ohio

NWS Charleston, WV issued this flash flood watch at Jul 7, 2019, 5:39 AM EDT for 18 counties in West Virginia; 4 counties in Ohio. It took effect at Jul 7, 2019, 12:00 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jul 7, 2019, 5:39 AM EDT (09:39 UTC)
In effect from
Jul 7, 2019, 12:00 PM EDT
Expired
Jul 7, 2019, 10:00 PM EDT
In force
10 hr
Issued by
NWS Charleston, WV
Flood severity
None
All 22 counties

Athens County, OH, Morgan County, OH, Perry County, OH, Washington County, OH, Barbour County, WV, Braxton County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Lewis County, WV, Nicholas County, WV, Pleasants County, WV, Pocahontas County, WV, Randolph County, WV, Ritchie County, WV, Taylor County, WV, Tyler County, WV, Upshur County, WV, Webster County, WV, Wirt County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 112 km from the middle of the area, began a volume at 09:41 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

Pittsburgh, PA (KPIT), launched 00:00Z, 9.7 hours before the alert went out and 163 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, Pittsburgh, PA at 00:00Z on 2019-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 234 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2019-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
234 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, WV wrote its last area forecast discussion before this flash flood watch went out at Jul 7, 4:03 AM EDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jul 7, 4:03 AM EDT, 1 hour 36 minutes before
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Hazardous weather outlook, Jul 6, 11:49 AM EDT, 17 hours 50 minutes before
Hazardous Weather Outlook
National Weather Service Charleston WV
1149 AM EDT Sat Jul 6 2019

WVZ009>011-017>020-028>032-039-040-521>523-525-526-071600-
Wood-Pleasants-Tyler-Wirt-Calhoun-Ritchie-Doddridge-Braxton-Gilmer-
Lewis-Harrison-Taylor-Upshur-Barbour-Northwest Webster-
Southeast Webster-Northwest Pocahontas-Northwest Randolph-
Southeast Randolph-
1149 AM EDT Sat Jul 6 2019

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

This Hazardous Weather Outlook is for portions of central West
Virginia, northeast West Virginia and northern West Virginia.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Widely scattered showers and storms are expected Saturday afternoon
and evening. Some of the stronger storms could produce damaging
winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>008-
013>016-024>027-033-034-515>520-524-071600-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Dickenson-Buchanan-Wayne-
Cabell-Mason-Jackson WV-Lincoln-Putnam-Kanawha-Roane-Mingo-Logan-
Boone-Clay-McDowell-Wyoming-Northwest Raleigh-Southeast Raleigh-
Northwest Fayette-Southeast Fayette-Northwest Nicholas-
Southeast Nicholas-Southeast Pocahontas-
1149 AM EDT Sat Jul 6 2019

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, southwest Virginia, and portions of central West Virginia,
northeast West Virginia, southeast West Virginia, southern West
Virginia and western West Virginia.

.DAY ONE...This Afternoon and Tonight.

Localized flash flooding is possible this afternoon and evening,
especially in areas that receive multiple rounds of thunderstorms.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Showers and storms will continue on Sunday. Localized flash flooding
is possible in areas that receive multiple rounds of thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

In the hours before

Local storm report, Jul 7, 12:17 AM EDT, 5 hours 22 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:15 PM EDTSpecial Weather StatementRLXHarrison, Lewis, Upshur15 min
Jul 6, 8:30 PM EDTSpecial Weather StatementRLXPleasants, Tyler30 min
Jul 6, 8:38 PM EDTSevere Thunderstorm WarningRLXPleasants, Ritchie, Tyler, Wood37 min
Jul 6, 9:18 PM EDTSpecial Weather StatementRLXPleasants, Ritchie27 min
Jul 6, 9:43 PM EDTFlash Flood WarningRLXRitchie62 min
Jul 6, 9:53 PM EDTSpecial Weather StatementRLXGilmer37 min
Jul 7, 3:27 PM EDTSpecial Weather StatementRLXLincoln33 min
Jul 7, 4:34 PM EDTSpecial Weather StatementRLXKanawha26 min
Jul 7, 7:16 PM EDTSpecial Weather StatementRLXPleasants, Tyler, Wood29 min
Jul 7, 7:44 PM EDTSpecial Weather StatementRLXPleasants, Wood31 min
Jul 6, 8:15 PM EDTFlash Flood WarningRLXAthens, Morgan, Perry, Washington4 hr
Jul 6, 11:22 PM EDTAreal Flood WarningRLXMorgan, Washington6 hr
Jul 7, 10:12 AM EDTAreal Flood WarningRLXWashington9 hr

Nearby

Flash Flood Watches in West Virginia, 2019Flash Flood Watches in Ohio, 2019Every flash flood watch in 2019

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.