Alert archive / West Virginia / Flash Flood Watches in 2016

Flash Flood Watch 1, NWS Pittsburgh, PA

May 2, 20165 counties in West Virginia

NWS Pittsburgh, PA issued this flash flood watch at May 2, 2016, 10:28 AM EDT for 5 counties in West Virginia. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: May 2, 2016, 10:28 AM EDT (14:28 UTC)
Expired: May 2, 2016, 9:05 PM EDT
In force: 11 hr
Issued by: NWS Pittsburgh, PA
Flood severity: None

Counties Marion County, WV, Monongalia County, WV, Preston County, WV, Tucker County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 120 km from the middle of the area, began a volume at 14:34 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 2.5 hours before the alert went out and 234 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: 565 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 192 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 Pittsburgh, PA wrote its last area forecast discussion before this flash flood watch went out at May 2, 7:54 AM EDT, 2 hours 34 minutes earlier.

Area forecast discussion, May 2, 7:54 AM EDT, 2 hours 34 minutes before

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Hazardous weather outlook, May 2, 10:28 AM EDT, 0 minutes before

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In the hours before

Local storm report, May 2, 4:57 AM EDT, 5 hours 31 minutes before

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Local storm report, May 2, 5:07 AM EDT, 5 hours 21 minutes before

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Local storm report, May 2, 5:10 AM EDT, 5 hours 18 minutes before

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Local storm report, May 2, 5:20 AM EDT, 5 hours 8 minutes before

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Local storm report, May 2, 6:32 AM EDT, 3 hours 56 minutes before

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Local storm report, May 2, 10:09 AM EDT, 19 minutes before

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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 2, 3:14 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Washington	31 min
May 2, 3:58 AM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington, Westmoreland	32 min
May 1, 8:45 PM EDT	Special Weather Statement	PBZ	Marion, Monongalia	30 min
May 1, 9:26 PM EDT	Special Weather Statement	PBZ	Monongalia	49 min
May 2, 3:47 AM EDT	Special Weather Statement	PBZ	Hancock	28 min
May 1, 10:12 PM EDT	Special Weather Statement	PBZ	Muskingum	48 min
May 2, 2:07 AM EDT	Special Weather Statement	PBZ	Carroll	38 min
May 2, 2:14 AM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Tuscarawas	31 min
May 2, 2:42 AM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana, Harrison, Jefferson, Tuscarawas	33 min

Nearby

Flash Flood Watches in West Virginia, 2016 Every flash flood watch in 2016

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.