Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 222, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Nov 5, 2017, 8:13 PM EST for 5 counties in Pennsylvania. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 5, 2017, 8:13 PM EST (01:13 UTC)
- Expired
- Nov 5, 2017, 9:00 PM EST
- In force
- 47 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Armstrong County, PA, Clarion County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA
The radar
The Pittsburgh radar (KPBZ), 101 km from the middle of the area, began a volume at 01:13 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 5, 5:28 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Pittsburgh, PA (KAGC), launched 00:00Z, 1.2 hours before the alert went out and 102 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
- 166 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1258 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 409 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Nov 5, 7:43 PM EST, 30 minutes earlier.
Area forecast discussion, Nov 5, 7:43 PM EST, 30 minutes before
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</html>Hazardous weather outlook, Nov 5, 11:35 AM EST, 8 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 1135 AM EST Sun Nov 5 2017 MDZ001-PAZ016-023-074-076-WVZ510>514-061645- Garrett-Jefferson-Indiana-Westmoreland Ridges-Fayette Ridges- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 1135 AM EST Sun Nov 5 2017 This Hazardous Weather Outlook is for western Maryland, southwest Pennsylvania, west central Pennsylvania and northern West Virginia. .DAY ONE...This Afternoon and Tonight. Hazardous weather is not expected a this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Hazardous weather is not expected a this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. OHZ039>041-048>050-057>059-068-069-PAZ007>009-013-020-WVZ001>003- 061645- Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson-Muskingum- Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest-Lawrence-Beaver- Hancock-Brooke-Ohio- 1135 AM EST Sun Nov 5 2017 ...FLASH FLOOD WATCH IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH MONDAY MORNING... This Hazardous Weather Outlook is for east central Ohio, northwest Pennsylvania, western Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Severe thunderstorms are possible this afternoon and evening. The main threat will be damaging wind gusts and hail. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. PAZ014-015-021-022-029-031-073-075-WVZ004-012-021-509-061645- Butler-Clarion-Allegheny-Armstrong-Washington-Greene-Westmoreland- Fayette-Marshall-Wetzel-Marion-Monongalia- 1135 AM EST Sun Nov 5 2017 This Hazardous Weather Outlook is for southwest Pennsylvania, west central Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...This Afternoon and Tonight. Severe thunderstorms are possible this evening and overnight. The main threat will be damaging wind gusts, hail. Heavy rainfall will accompany thunderstorms and could lead to some localized flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
In the hours before
Local storm report, Nov 5, 7:23 PM EST, 50 minutes before
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</html>Special weather statement, Nov 5, 7:42 PM EST, 31 minutes before
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</html>Local storm report, Nov 5, 7:55 PM EST, 18 minutes before
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</html>Local storm report, Nov 5, 8:00 PM EST, 13 minutes before
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</html>Local storm report, Nov 5, 8:05 PM EST, 8 minutes before
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</html>Local storm report, Nov 5, 8:11 PM EST, 2 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 |
|---|---|---|---|---|
| Nov 5, 7:17 PM EST | Tornado Warning | PBZ | Beaver | 28 min |
| Nov 5, 7:26 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Mercer, Venango | 64 min |
| Nov 5, 7:37 PM EST | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Indiana, Jefferson | 53 min |
| Nov 5, 7:57 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 34 min |
| Nov 5, 8:25 PM EST | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana | 38 min |
| Nov 5, 8:50 PM EST | Areal Flood Advisory | PBZ | Lawrence, Mercer, Venango | 4 hr |
| Nov 5, 9:15 PM EST | Special Weather Statement | PBZ | Beaver | 45 min |
| Nov 6, 5:04 AM EST | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Butler, Indiana, Washington, Westmoreland | 3 hr |
| Nov 6, 6:56 AM EST | Areal Flood Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 3 hr |
| Nov 6, 9:53 AM EST | Areal Flood Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 13 hr |
| Nov 6, 11:35 AM EST | River Flood Advisory | PBZ | Allegheny | 36 hr |
| Nov 5, 7:42 PM EST | Special Weather Statement | PBZ | Coshocton, Muskingum | 63 min |
| Nov 5, 8:28 PM EST | Severe Thunderstorm Warning | PBZ | Belmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 1 more | 62 min |
| Nov 5, 8:30 PM EST | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Monroe, Muskingum, Noble | 46 min |
| Nov 6, 12:42 AM EST | Areal Flood Advisory | PBZ | Carroll, Columbiana, Coshocton, Tuscarawas | 3 hr |
| Nov 6, 2:18 AM EST | Areal Flood Advisory | PBZ | Guernsey, Harrison, Muskingum | 3 hr |
| Nov 6, 4:05 AM EST | Areal Flood Advisory | PBZ | Belmont, Monroe, Noble | 3 hr |
| Nov 6, 5:16 AM EST | Areal Flood Warning | PBZ | Belmont, Guernsey, Monroe, Noble | 3 hr |
| Nov 6, 5:36 AM EST | Areal Flood Warning | PBZ | Carroll, Columbiana | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2017Every severe thunderstorm warning 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.