Alert archive / Kentucky / Areal Flood Warnings in 2008

Areal Flood Warning 9, NWS Charleston, WV

April 4, 2008Gallia County, Lawrence County, Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this areal flood warning at Apr 4, 2008, 6:49 AM EDT for Gallia County, Lawrence County, Ohio; 4 counties in Kentucky. It was in force for 6 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: Apr 4, 2008, 6:49 AM EDT (10:49 UTC)
Expired: Apr 4, 2008, 12:45 PM EDT
In force: 6 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Gallia County, OH, Lawrence County, OH

The radar

The Charleston,WV radar (KRLX), 87 km from the middle of the area, began a volume at 10:50 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, 10.8 hours before the alert went out and 144 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 317 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 areal 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 areal flood warning went out at Apr 3, 7:46 PM EDT, 11 hours 3 minutes earlier.

Area forecast discussion, Apr 3, 7:46 PM EDT, 11 hours 3 minutes before

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Hazardous weather outlook, Apr 3, 8:58 AM EDT, 21 hours 51 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
Apr 4, 8:16 AM EDT	Areal Flood Advisory	RLX	Cabell, Lincoln, Mason, Putnam, Wayne	3 hr
Apr 4, 4:59 PM EDT	Areal Flood Warning	RLX	Cabell	6 hr
Apr 4, 5:09 PM EDT	Areal Flood Advisory	RLX	Lincoln	6 hr
Apr 4, 5:22 AM EDT	Areal Flood Advisory	RLX	Lawrence	4 hr
Apr 4, 2:29 PM EDT	River Flood Advisory	RLX	Carter, Greenup	10 hr

Nearby

Areal Flood Warnings in Kentucky, 2008 Areal Flood Warnings in Ohio, 2008 Every areal flood warning in 2008

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.