Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 103, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 18, 2018, 9:00 PM EDT for 4 counties in Pennsylvania. It was in force for 60 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
- Jun 18, 2018, 9:00 PM EDT (01:00 UTC)
- Expired
- Jun 18, 2018, 10:00 PM EDT
- In force
- 60 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clarion County, PA, Forest County, PA, Jefferson County, PA, Venango County, PA
The radar
The Pittsburgh radar (KPBZ), 113 km from the middle of the area, began a volume at 01:03 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
Pittsburgh, PA (KAGC), launched 00:00Z, 1.0 hours before the alert went out and 118 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
- 1170 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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 Jun 18, 8:06 PM EDT, 54 minutes earlier.
Area forecast discussion, Jun 18, 8:06 PM EDT, 54 minutes before
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</html>Hazardous weather outlook, Jun 18, 4:19 AM EDT, 16 hours 41 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 419 AM EDT Mon Jun 18 2018 MDZ001-OHZ050-PAZ029-031-075-076-WVZ002-003-021-509>514-190830- Garrett-Jefferson-Washington-Greene-Fayette-Fayette Ridges-Brooke- Ohio-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 419 AM EDT Mon Jun 18 2018 This Hazardous Weather Outlook is for western Maryland, east central Ohio, southwest Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Locally heavy rainfall is expected along a slow-moving front Tuesday and Tuesday night, with possible isolated flooding issues. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. OHZ039-040-048-049-057>059-068-069-WVZ004-012-190830- Tuscarawas-Carroll-Coshocton-Harrison-Muskingum-Guernsey-Belmont- Noble-Monroe-Marshall-Wetzel- 419 AM EDT Mon Jun 18 2018 ...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for east central Ohio, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Locally heavy rainfall is expected near a slow-moving front Tuesday and Tuesday night, with possible isolated flooding issues. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. PAZ007>009-015-016-190830- Mercer-Venango-Forest-Clarion-Jefferson- 419 AM EDT Mon Jun 18 2018 This Hazardous Weather Outlook is for northwest Pennsylvania and west central Pennsylvania. .DAY ONE...Today and Tonight. There is a marginal risk of severe thunderstorms this afternoon and evening, with a damaging wind gust or two possible. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. 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. OHZ041-PAZ013-014-020>023-073-074-WVZ001-190830- Columbiana-Lawrence-Butler-Beaver-Allegheny-Armstrong-Indiana- Westmoreland-Westmoreland Ridges-Hancock- 419 AM EDT Mon Jun 18 2018 This Hazardous Weather Outlook is for east central Ohio, southwest Pennsylvania, west central Pennsylvania, western Pennsylvania and northern West Virginia. .DAY ONE...Today and Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The threat of widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Jun 18, 4:03 PM EDT, 4 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
403 PM EDT MON JUN 18 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM TSTM WND DMG 4 SSW STRATTANVILLE 41.14N 79.36W
06/18/2018 CLARION PA 911 CALL CENTER
TREES DOWN ON EAST REIDSBURG RD.
&&Local storm report, Jun 18, 4:04 PM EDT, 4 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
404 PM EDT MON JUN 18 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0307 PM TSTM WND DMG FOXBURG 41.14N 79.68W
06/18/2018 ARMSTRONG PA 911 CALL CENTER
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
FOXBURG. TREES DOWN ON NORTH RIVERVIEW DR. /
POWER LINES DOWN.
&&Local storm report, Jun 18, 4:32 PM EDT, 4 hours 28 minutes before
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</html>Local storm report, Jun 18, 4:33 PM EDT, 4 hours 27 minutes before
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</html>Special weather statement, Jun 18, 9:00 PM EDT, 0 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 |
|---|---|---|---|---|
| Jun 18, 8:20 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Venango | 40 min |
| Jun 18, 9:00 PM EDT | Special Weather Statement | PBZ | Mercer | 30 min |
| Jun 18, 9:11 PM EDT | Special Weather Statement | PBZ | Venango | 34 min |
| Jun 18, 9:27 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 63 min |
| Jun 18, 9:57 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 33 min |
| Jun 18, 10:26 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 34 min |
| Jun 18, 10:30 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 45 min |
| Jun 18, 11:24 PM EDT | Special Weather Statement | PBZ | Armstrong | 36 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2018Every severe thunderstorm warning 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.