Alert archive / West Virginia / Flash Flood Watches in 2019

Flash Flood Watch 3, NWS Charleston, WV

July 3, 201924 counties in West Virginia; 9 counties in Ohio

NWS Charleston, WV issued this flash flood watch at Jul 3, 2019, 4:47 AM EDT for 24 counties in West Virginia; 9 counties in Ohio. It was in force for 65 hr.

The area

The counties it named.

The facts

Issued: Jul 3, 2019, 4:47 AM EDT (08:47 UTC)
Expired: Jul 5, 2019, 9:32 PM EDT
In force: 65 hr
Issued by: NWS Charleston, WV
Flood severity: None

All 33 counties

Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Barbour County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Doddridge County, WV, Fayette County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Mason County, WV, Nicholas County, WV, Pleasants County, WV, Pocahontas County, WV, Putnam County, WV, Raleigh 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), 80 km from the middle of the area, began a volume at 08:48 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 00:00Z, 8.8 hours before the alert went out and 226 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: 94 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1802 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 3, 3:56 AM EDT, 51 minutes earlier.

Area forecast discussion, Jul 3, 3:56 AM EDT, 51 minutes before

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Hazardous weather outlook, Jul 3, 2:57 AM EDT, 1 hour 50 minutes before

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In the hours before

Special weather statement, Jul 3, 1:35 AM EDT, 3 hours 12 minutes before

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Special weather statement, Jul 3, 3:13 AM EDT, 1 hour 34 minutes before

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Special weather statement, Jul 3, 4:28 AM EDT, 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 7:31 PM EDT	Flash Flood Warning	RLX	Pleasants, Wood	81 min
Jul 2, 8:08 PM EDT	Special Weather Statement	RLX	Morgan, Perry	52 min
Jul 3, 1:35 AM EDT	Special Weather Statement	RLX	Perry	55 min
Jul 3, 3:13 AM EDT	Special Weather Statement	RLX	Perry	62 min
Jul 3, 4:28 AM EDT	Special Weather Statement	RLX	Gallia	32 min
Jul 3, 4:55 AM EDT	Special Weather Statement	RLX	Gallia	95 min
Jul 3, 4:41 PM EDT	Flash Flood Warning	RLX	Perry	3 hr
Jul 2, 8:04 PM EDT	Flash Flood Warning	RLX	Carter, Greenup	2 hr

Nearby

Flash Flood Watches in West Virginia, 2019 Flash Flood Watches in Ohio, 2019 Every 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.