Alert archive / West Virginia / Flood Watches in 2018

Flood Watch 8, NWS Charleston, WV

May 6, 201815 counties in West Virginia; Lawrence County, Ohio; Boyd County, Greenup County, Kentucky

NWS Charleston, WV issued this flood watch at May 6, 2018, 3:16 PM EDT for 15 counties in West Virginia; Lawrence County, Ohio; Boyd County, Greenup County, Kentucky. It took effect at May 6, 2018, 9:00 PM EDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued: May 6, 2018, 3:16 PM EDT (19:16 UTC)
In effect from: May 6, 2018, 9:00 PM EDT
Expired: May 7, 2018, 8:00 PM EDT
In force: 23 hr
Issued by: NWS Charleston, WV
Flood severity: None

Counties Boyd County, KY, Greenup County, KY, Lawrence County, OH, Barbour County, WV, Boone County, WV, Braxton County, WV, Cabell County, WV, Clay County, WV, Fayette County, WV, Kanawha County, WV, Lincoln County, WV, Nicholas County, WV, Pocahontas County, WV, Putnam County, WV, Randolph County, WV, Upshur County, WV, Wayne County, WV, Webster County, WV

The radar

The Charleston,WV radar (KRLX), 37 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 238 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: 19 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 789 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: -41 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 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 flood watch went out at May 6, 3:06 PM EDT, 10 minutes earlier.

Area forecast discussion, May 6, 3:06 PM EDT, 10 minutes before

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Hazardous weather outlook, May 6, 4:26 AM EDT, 10 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
426 AM EDT Sun May 6 2018

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011-
013>020-024>034-039-040-515>526-070830-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Dickenson-Buchanan-Wayne-
Cabell-Mason-Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-
Roane-Wirt-Calhoun-Ritchie-Doddridge-Mingo-Logan-Boone-Clay-Braxton-
Gilmer-Lewis-Harrison-Taylor-McDowell-Wyoming-Upshur-Barbour-
Northwest Raleigh-Southeast Raleigh-Northwest Fayette-
Southeast Fayette-Northwest Nicholas-Southeast Nicholas-
Northwest Webster-Southeast Webster-Northwest Pocahontas-
Southeast Pocahontas-Northwest Randolph-Southeast Randolph-
426 AM EDT Sun May 6 2018

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, southwest Virginia and much of West Virginia.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, May 6, 12:37 PM EDT, 2 hours 39 minutes before

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Local storm report, May 6, 1:13 PM EDT, 2 hours 3 minutes before

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Local storm report, May 6, 1:17 PM EDT, 1 hour 59 minutes before

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Local storm report, May 6, 1:31 PM EDT, 1 hour 45 minutes before

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Local storm report, May 6, 1:34 PM EDT, 1 hour 42 minutes before

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Local storm report, May 6, 2:03 PM EDT, 1 hour 13 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
May 6, 4:54 AM EDT	Areal Flood Warning	RLX	Randolph	11 hr
May 6, 8:21 AM EDT	Special Weather Statement	RLX	Cabell, Wayne	3 hr
May 6, 8:28 AM EDT	Areal Flood Warning	RLX	Pocahontas, Randolph	9 hr
May 6, 8:36 AM EDT	Areal Flood Warning	RLX	Cabell, Wayne	11 hr
May 6, 11:05 AM EDT	Areal Flood Warning	RLX	Kanawha, Putnam	15 hr
May 6, 11:29 AM EDT	Areal Flood Warning	RLX	Boone, Clay, Fayette, Jackson, Kanawha, Lincoln and 3 more	6 hr
May 6, 12:18 PM EDT	Special Weather Statement	RLX	Nicholas, Webster	57 min
May 6, 5:32 PM EDT	Special Weather Statement	RLX	Lincoln	118 min

Nearby

Flood Watches in West Virginia, 2018 Flood Watches in Kentucky, 2018 Flood Watches in Ohio, 2018 Every flood watch in 2018

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.