Alert archive / West Virginia / Flash Flood Watches in 2006

Flash Flood Watch 3, NWS Blacksburg, VA

July 13, 2006Mercer County, Summers County, West Virginia

NWS Blacksburg, VA issued this flash flood watch at Jul 13, 2006, 12:03 PM EDT for Mercer County, Summers County, West Virginia. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Jul 13, 2006, 12:03 PM EDT (16:03 UTC)
Expired: Jul 14, 2006, 1:31 AM EDT
In force: 13 hr
Issued by: NWS Blacksburg, VA
Flood severity: None

Counties Mercer County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 84 km from the middle of the area, began a volume at 16:03 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

Roanoke, VA (KRNK), launched 12:00Z, 4.1 hours before the alert went out and 136 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: 108 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1060 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 54 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 Blacksburg, VA wrote its last area forecast discussion before this flash flood watch went out at Jul 13, 11:07 AM EDT, 56 minutes earlier.

Area forecast discussion, Jul 13, 11:07 AM EDT, 56 minutes before

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Hazardous weather outlook, Jul 13, 4:01 AM EDT, 8 hours 2 minutes before

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The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 13, 1:45 PM EDT	Severe Thunderstorm Warning	RNK	Craig	60 min
Jul 13, 2:59 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt	61 min
Jul 13, 3:16 PM EDT	Severe Thunderstorm Warning	RNK	Montgomery, Roanoke, City of Roanoke, City of Salem	59 min
Jul 13, 4:18 PM EDT	Flash Flood Warning	RNK	Bedford	6 hr
Jul 13, 4:34 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	37 min
Jul 13, 4:35 PM EDT	Flash Flood Warning	RNK	Halifax	6 hr
Jul 13, 5:58 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	47 min
Jul 13, 6:54 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	66 min
Jul 13, 5:19 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Yadkin	56 min
Jul 13, 6:23 PM EDT	Severe Thunderstorm Warning	RNK	Stokes	37 min
Jul 13, 6:36 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham	54 min
Jul 13, 7:52 PM EDT	Severe Thunderstorm Warning	RNK	Caswell	23 min

Nearby

Flash Flood Watches in West Virginia, 2006 Every flash flood watch in 2006

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.