Alert archive / Ohio / Flash Flood Watches in 2017
Flash Flood Watch 7, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood watch at Jul 13, 2017, 9:25 AM EDT for 10 counties in Pennsylvania; 11 counties in Ohio; 9 counties in West Virginia. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Jul 13, 2017, 9:25 AM EDT (13:25 UTC)
- Expired
- Jul 14, 2017, 4:00 PM EDT
- In force
- 31 hr
- Issued by
- NWS Pittsburgh, PA
- Flood severity
- None
All 30 counties
Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Tuscarawas County, OH, Allegheny County, PA, Beaver County, PA, Butler County, PA, Fayette County, PA, Greene County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Preston County, WV, Tucker County, WV, Wetzel County, WV
The radar
The Pittsburgh radar (KPBZ), 46 km from the middle of the area, began a volume at 13:29 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, 1.4 hours before the alert went out and 290 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.
- Mixed-layer CAPE
- 969 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 13, 5:39 AM EDT, 3 hours 46 minutes earlier.
Area forecast discussion, Jul 13, 5:39 AM EDT, 3 hours 46 minutes before
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</html>Hazardous weather outlook, Jul 13, 4:35 AM EDT, 4 hours 50 minutes before
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Special weather statement, Jul 13, 6:14 AM EDT, 3 hours 11 minutes before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:14 AM EDT | Special Weather Statement | PBZ | Lawrence, Mercer | 31 min |
| Jul 13, 8:39 AM EDT | Areal Flood Advisory | PBZ | Mercer, Venango | 3 hr |
| Jul 13, 8:57 AM EDT | Areal Flood Advisory | PBZ | Coshocton | 3 hr |
| Jul 13, 11:21 AM EDT | Areal Flood Advisory | PBZ | Muskingum | 3 hr |
| Jul 13, 1:21 PM EDT | Flash Flood Warning | PBZ | Muskingum | 3 hr |
Nearby
Flash Flood Watches in Ohio, 2017Flash Flood Watches in Pennsylvania, 2017Flash Flood Watches in West Virginia, 2017Every flash flood watch in 2017
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.