Alert archive / Pennsylvania / Flash Flood Watches in 2018
Flash Flood Watch 7, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood watch at Jul 5, 2018, 4:10 AM EDT for 14 counties in Pennsylvania; 11 counties in Ohio; 9 counties in West Virginia. It took effect at Jul 5, 2018, 9:46 AM EDT. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Jul 5, 2018, 4:10 AM EDT (08:10 UTC)
- In effect from
- Jul 5, 2018, 9:46 AM EDT
- Expired
- Jul 5, 2018, 10:47 PM EDT
- In force
- 13 hr
- Issued by
- NWS Pittsburgh, PA
- Flood severity
- None
All 34 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, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Jefferson 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), 28 km from the middle of the area, began a volume at 08:10 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
Pittsburgh, PA (KAGC), launched 00:00Z, 8.2 hours before the alert went out and 28 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
- 1183 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1641 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- -9 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 5, 1:59 AM EDT, 2 hours 11 minutes earlier.
Area forecast discussion, Jul 5, 1:59 AM EDT, 2 hours 11 minutes before
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</html>Hazardous weather outlook, Jul 4, 7:41 PM EDT, 8 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 741 PM EDT Wed Jul 4 2018 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021-509>514-052345- Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson- Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest- Lawrence-Butler-Clarion-Beaver-Allegheny-Armstrong-Indiana- Washington-Greene-Westmoreland-Westmoreland Ridges-Fayette- Fayette Ridges-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 741 PM EDT Wed Jul 4 2018 This Hazardous Weather Outlook is for western Maryland, east central Ohio, northwest Pennsylvania, southwest Pennsylvania, west central Pennsylvania, western Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. 34
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 8:31 PM EDT | Special Weather Statement | PBZ | Allegheny | 44 min |
| Jul 4, 8:37 PM EDT | Flash Flood Warning | PBZ | Allegheny, Westmoreland | 113 min |
| Jul 4, 9:26 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 34 min |
| Jul 4, 10:43 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Westmoreland | 4 hr |
| Jul 4, 11:08 PM EDT | Flash Flood Warning | PBZ | Forest | 3 hr |
| Jul 5, 2:51 AM EDT | Areal Flood Advisory | PBZ | Westmoreland | 3 hr |
| Jul 5, 2:55 AM EDT | Areal Flood Advisory | PBZ | Indiana, Westmoreland | 3 hr |
| Jul 5, 4:18 AM EDT | Areal Flood Advisory | PBZ | Indiana | 3 hr |
| Jul 5, 5:32 AM EDT | Areal Flood Advisory | PBZ | Armstrong, Indiana | 3 hr |
| Jul 5, 5:40 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Westmoreland | 94 min |
| Jul 5, 7:07 AM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jul 5, 12:59 PM EDT | Special Weather Statement | PBZ | Mercer | 31 min |
| Jul 5, 1:02 PM EDT | Special Weather Statement | PBZ | Butler | 28 min |
| Jul 5, 1:31 PM EDT | Special Weather Statement | PBZ | Beaver | 29 min |
| Jul 5, 1:44 PM EDT | Special Weather Statement | PBZ | Mercer | 31 min |
| Jul 5, 1:55 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Mercer, Venango | 35 min |
| Jul 5, 2:00 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence | 30 min |
| Jul 5, 2:39 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 36 min |
| Jul 5, 2:44 PM EDT | Severe Thunderstorm Warning | PBZ | Butler | 31 min |
| Jul 5, 2:50 PM EDT | Special Weather Statement | PBZ | Jefferson | 55 min |
| Jul 5, 3:03 PM EDT | Areal Flood Advisory | PBZ | Clarion | 73 min |
| Jul 5, 3:13 PM EDT | Special Weather Statement | PBZ | Beaver | 47 min |
| Jul 5, 3:34 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Washington | 41 min |
| Jul 5, 3:58 PM EDT | Special Weather Statement | PBZ | Indiana | 47 min |
| Jul 5, 5:04 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 56 min |
| Jul 5, 5:32 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 58 min |
| Jul 5, 6:09 PM EDT | Severe Thunderstorm Warning | PBZ | Greene, Washington | 51 min |
| Jul 5, 5:37 AM EDT | Areal Flood Advisory | PBZ | Monroe, Noble | 3 hr |
| Jul 5, 11:49 AM EDT | Flash Flood Warning | PBZ | Monroe | 81 min |
| Jul 5, 3:28 PM EDT | Special Weather Statement | PBZ | Carroll, Jefferson | 47 min |
| Jul 5, 3:42 PM EDT | Special Weather Statement | PBZ | Muskingum | 48 min |
| Jul 5, 4:05 PM EDT | Special Weather Statement | PBZ | Muskingum | 40 min |
| Jul 5, 4:32 PM EDT | Special Weather Statement | PBZ | Noble | 28 min |
| Jul 5, 4:55 PM EDT | Special Weather Statement | PBZ | Noble | 35 min |
| Jul 5, 5:44 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Harrison, Tuscarawas | 46 min |
| Jul 5, 5:58 PM EDT | Special Weather Statement | PBZ | Columbiana | 62 min |
| Jul 5, 6:17 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Harrison, Jefferson, Tuscarawas | 43 min |
| Jul 5, 6:26 PM EDT | Flash Flood Warning | PBZ | Belmont | 2 hr |
| Jul 5, 3:15 PM EDT | Special Weather Statement | PBZ | Tucker | 45 min |
| Jul 5, 4:58 PM EDT | Special Weather Statement | PBZ | Ohio | 47 min |
| Jul 5, 6:00 PM EDT | Areal Flood Advisory | PBZ | Ohio | 2 hr |
| Jul 5, 6:26 PM EDT | Special Weather Statement | PBZ | Wetzel | 34 min |
Nearby
Flash Flood Watches in Pennsylvania, 2018Flash Flood Watches in Ohio, 2018Flash Flood Watches in West Virginia, 2018Every flash flood watch in 2018
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.