Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 253, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 18, 2019, 12:35 PM EDT for Armstrong County, Clarion County, Jefferson County, Pennsylvania. It was in force for 27 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
- Aug 18, 2019, 12:35 PM EDT (16:35 UTC)
- Expired
- Aug 18, 2019, 1:02 PM EDT
- In force
- 27 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Armstrong County, PA, Clarion County, PA, Jefferson County, PA
The radar
The Pittsburgh radar (KPBZ), 96 km from the middle of the area, began a volume at 16:36 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 (KPIT), launched 12:00Z, 4.6 hours before the alert went out and 98 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
- 566 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1315 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
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 Aug 18, 9:18 AM EDT, 3 hours 17 minutes earlier.
Area forecast discussion, Aug 18, 9:18 AM EDT, 3 hours 17 minutes before
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</html>Hazardous weather outlook, Aug 18, 4:04 AM EDT, 8 hours 31 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 404 AM EDT Sun Aug 18 2019 MDZ001-OHZ059-068-069-PAZ031-074>076-WVZ004-012-021-509>514-190815- Garrett-Belmont-Noble-Monroe-Greene-Westmoreland Ridges-Fayette- Fayette Ridges-Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 404 AM EDT Sun Aug 18 2019 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. No hazardous weather is expected at this time. .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. OHZ039>041-048>050-057-058-PAZ007>009-013>016-020>023-029-073- WVZ001>003-190815- Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Mercer-Venango-Forest-Lawrence-Butler-Clarion- Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-Washington- Westmoreland-Hancock-Brooke-Ohio- 404 AM EDT Sun Aug 18 2019 This Hazardous Weather Outlook is for east central Ohio, northwest Pennsylvania, southwest Pennsylvania, west central Pennsylvania, western Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Today and tonight. Isolated severe storms are possible this afternoon and evening. Damaging wind gusts or a moisture laden downburst is possible. .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, Aug 18, 8:25 AM EDT, 4 hours 10 minutes before
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</html>Local storm report, Aug 18, 8:46 AM EDT, 3 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
846 AM EDT SUN AUG 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0441 PM TSTM WND DMG 1 W GOLINZA 41.44N 79.35W
08/17/2019 FOREST PA 911 CALL CENTER
MULTIPLE TREES DOWN IN SOUTHERN GREEN TOWNSHIP.
0445 PM TSTM WND DMG TYLERSBURG 41.38N 79.32W
08/17/2019 CLARION PA 911 CALL CENTER
MULTIPLE TREES AND DOWNED POWER LINES IN TYLERSBURG.
0445 PM TSTM WND DMG 1 ENE FRYBURG 41.35N 79.44W
08/17/2019 CLARION PA 911 CALL CENTER
OLD FRYBURG ROAD CLOSED BRIEFLY DUE TO DOWNED POWER
LINES AND TREES.
0450 PM TSTM WND DMG LICKINGVILLE 41.38N 79.36W
08/17/2019 CLARION PA 911 CALL CENTER
SUNNY ROAD CLOSED BRIEFLY DUE TO DOWNED POWER LINES AND
TREES.
0458 PM TSTM WND DMG LUCINDA 41.31N 79.37W
08/17/2019 CLARION PA 911 CALL CENTER
MULTIPLE DOWN TREES AND POWER LINES IN LUCINDA AND
SNYDERSBURG.
&&
EVENT NUMBER PBZ1902863
EVENT NUMBER PBZ1902864
EVENT NUMBER PBZ1902865
EVENT NUMBER PBZ1902866
EVENT NUMBER PBZ1902867
JFLocal storm report, Aug 18, 9:06 AM EDT, 3 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
906 AM EDT SUN AUG 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0522 PM TSTM WND DMG 1 NNW HOWE 41.23N 79.11W
08/17/2019 JEFFERSON PA 911 CALL CENTER
*** 1 INJ *** TREE FELL DOWN ON MOVING VEHICLE ON MOORE
BRIDGE ROAD NEAR ROUTE 36. DRIVER INJURED BY SHATTERED
GLASS FROM TREE HITTING CAR.
0540 PM TSTM WND DMG ROCKDALE 41.18N 78.84W
08/17/2019 JEFFERSON PA 911 CALL CENTER
MULTIPLE TREES DOWN IN SNYDER AND WASHINGTOWN
TOWNSHIPS.
&&
EVENT NUMBER PBZ1902868
EVENT NUMBER PBZ1902869
JFLocal storm report, Aug 18, 9:20 AM EDT, 3 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
920 AM EDT SUN AUG 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0522 PM TSTM WND DMG 1 NNE BOYERS 41.12N 79.89W
08/17/2019 BUTLER PA 911 CALL CENTER
MULTIPLE TREES AND POWER LINES DOWN AROUND BOYERS.
0530 PM TSTM WND DMG EAU CLAIRE 41.14N 79.80W
08/17/2019 BUTLER PA 911 CALL CENTER
MULTIPLE TREES AND POWER LINES DOWN IN EAU CLAIRE.
&&
EVENT NUMBER PBZ1902870
EVENT NUMBER PBZ1902871
JFThe office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:34 AM EDT | Special Weather Statement | PBZ | Venango | 26 min |
| Aug 18, 1:05 PM EDT | Special Weather Statement | PBZ | Jefferson | 40 min |
| Aug 18, 1:19 PM EDT | Special Weather Statement | PBZ | Washington | 41 min |
| Aug 18, 2:02 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 43 min |
| Aug 18, 2:08 PM EDT | Special Weather Statement | PBZ | Clarion | 37 min |
| Aug 18, 2:13 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Jefferson | 47 min |
| Aug 18, 2:17 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 43 min |
| Aug 18, 2:21 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 39 min |
| Aug 18, 2:26 PM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 49 min |
| Aug 18, 2:48 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 28 min |
| Aug 18, 2:50 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 28 min |
| Aug 18, 2:52 PM EDT | Special Weather Statement | PBZ | Fayette | 23 min |
| Aug 18, 3:00 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene | 45 min |
| Aug 18, 3:23 PM EDT | Special Weather Statement | PBZ | Fayette | 37 min |
| Aug 18, 3:29 PM EDT | Special Weather Statement | PBZ | Fayette | 31 min |
| Aug 18, 3:33 PM EDT | Special Weather Statement | PBZ | Indiana | 27 min |
| Aug 18, 3:35 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 13 min |
| Aug 18, 3:38 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington, Westmoreland | 18 min |
| Aug 18, 4:21 PM EDT | Special Weather Statement | PBZ | Allegheny | 24 min |
| Aug 18, 4:58 PM EDT | Special Weather Statement | PBZ | Mercer | 32 min |
| Aug 18, 5:26 PM EDT | Special Weather Statement | PBZ | Clarion, Forest | 19 min |
| Aug 18, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 45 min |
| Aug 18, 5:34 PM EDT | Special Weather Statement | PBZ | Mercer | 26 min |
| Aug 18, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 52 min |
| Aug 18, 5:47 PM EDT | Areal Flood Advisory | PBZ | Mercer | 3 hr |
| Aug 18, 6:10 PM EDT | Flash Flood Warning | PBZ | Mercer | 90 min |
| Aug 18, 6:11 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson | 34 min |
| Aug 18, 6:22 PM EDT | Special Weather Statement | PBZ | Forest, Venango | 23 min |
| Aug 18, 7:06 PM EDT | Special Weather Statement | PBZ | Forest | 24 min |
| Aug 18, 7:27 PM EDT | Special Weather Statement | PBZ | Mercer | 33 min |
| Aug 18, 7:29 PM EDT | Special Weather Statement | PBZ | Clarion | 31 min |
| Aug 18, 7:55 PM EDT | Special Weather Statement | PBZ | Mercer | 35 min |
| Aug 18, 2:34 PM EDT | Special Weather Statement | PBZ | Noble | 26 min |
| Aug 18, 5:09 PM EDT | Special Weather Statement | PBZ | Tucker | 21 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2019Every severe thunderstorm warning in 2019
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.