Alert archive / Ohio / Flash Flood Warnings in 2010

Flash Flood Warning 51, NWS Charleston, WV

August 4, 2010Vinton County, Ohio

NWS Charleston, WV issued this flash flood warning at Aug 4, 2010, 5:45 AM EDT for Vinton County, Ohio. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 4, 2010, 5:45 AM EDT (09:45 UTC)
Expired: Aug 4, 2010, 7:45 AM EDT
In force: 2 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

County Vinton County, OH

The radar

The Cincinnati radar (KILN), 116 km from the middle of the area, began a volume at 09:46 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, 9.8 hours before the alert went out and 115 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: 175 J/kg
Mixed-layer CIN: -203 J/kg
Mixed-layer LCL: 1411 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning 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 warning went out at Aug 4, 4:05 AM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Aug 4, 4:05 AM EDT, 1 hour 40 minutes before

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Hazardous weather outlook, Aug 4, 4:42 AM EDT, 1 hour 3 minutes before

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In the hours before

Special weather statement, Aug 4, 1:27 AM EDT, 4 hours 18 minutes before

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Special weather statement, Aug 4, 4:27 AM EDT, 1 hour 18 minutes before

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Special weather statement, Aug 4, 5:32 AM EDT, 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
Aug 3, 8:23 PM EDT	Flash Flood Warning	RLX	Tyler	90 min
Aug 4, 1:27 AM EDT	Special Weather Statement	RLX	Pocahontas	63 min
Aug 4, 5:32 AM EDT	Special Weather Statement	RLX	Jackson, Mason, Pleasants, Ritchie, Wirt, Wood	58 min
Aug 4, 7:00 AM EDT	Special Weather Statement	RLX	Clay, Kanawha, Nicholas, Webster	60 min
Aug 4, 3:38 PM EDT	Severe Thunderstorm Warning	RLX	Jackson, Mason, Wood	52 min
Aug 4, 4:29 PM EDT	Severe Thunderstorm Warning	RLX	Calhoun, Doddridge, Gilmer, Jackson, Lewis, Mason and 6 more	61 min
Aug 4, 4:56 PM EDT	Severe Thunderstorm Warning	RLX	Barbour, Gilmer, Harrison, Lewis, Taylor, Upshur	64 min
Aug 4, 5:35 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Cabell, Kanawha, Lincoln, Mason, Putnam and 1 more	55 min
Aug 4, 5:46 PM EDT	Severe Thunderstorm Warning	RLX	Barbour, Braxton, Clay, Fayette, Kanawha, Nicholas and 3 more	59 min
Aug 4, 6:24 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, Mingo and 2 more	66 min
Aug 4, 6:37 PM EDT	Special Weather Statement	RLX	Barbour, Randolph, Taylor, Upshur	53 min
Aug 4, 7:37 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Wyoming	38 min
Aug 4, 4:27 AM EDT	Special Weather Statement	RLX	Athens, Morgan, Perry, Vinton, Washington	93 min
Aug 4, 1:42 PM EDT	Severe Thunderstorm Warning	RLX	Morgan, Perry	63 min
Aug 4, 2:41 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Perry, Washington	64 min
Aug 4, 4:10 PM EDT	Flash Flood Warning	RLX	Meigs, Vinton	110 min

Nearby

Flash Flood Warnings in Ohio, 2010 Every flash flood warning in 2010

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.