Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 271, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 20, 2019, 5:33 PM EDT for Beaver County, Lawrence County, Pennsylvania. It was in force for 26 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 20, 2019, 5:33 PM EDT (21:33 UTC)
- Expired
- Aug 20, 2019, 5:59 PM EDT
- In force
- 26 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Beaver County, PA, Lawrence County, PA
The radar
The Pittsburgh radar (KPBZ), 35 km from the middle of the area, began a volume at 21:36 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, 9.6 hours before the alert went out and 52 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
- 545 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 20, 3:49 PM EDT, 1 hour 44 minutes earlier.
Area forecast discussion, Aug 20, 3:49 PM EDT, 1 hour 44 minutes before
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</html>Hazardous weather outlook, Aug 20, 10:30 AM EDT, 7 hours 3 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Pittsburgh PA 1030 AM EDT Tue Aug 20 2019 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021-509>514-211430- Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison- Jefferson OH-Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango- Forest-Lawrence-Butler-Clarion-Jefferson PA-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- 1030 AM EDT Tue Aug 20 2019 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...Today and tonight. Severe thunderstorms are possible this afternoon and evening, and will be capable of producing damaging wind gusts and possibly hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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. Kramar
In the hours before
Special weather statement, Aug 20, 11:37 AM EDT, 5 hours 56 minutes before
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</html>Special weather statement, Aug 20, 2:39 PM EDT, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Pittsburgh PA
239 PM EDT Tue Aug 20 2019
WVZ514-201915-
Eastern Tucker-
239 PM EDT Tue Aug 20 2019
...A STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL AND GUSTY
WIND WILL AFFECT SOUTHEASTERN TUCKER COUNTY...
At 239 PM EDT, a strong thunderstorm was located 12 miles south of
Davis, moving northeast at 15 mph.
Wind gusts up to 55 mph and small hail are possible with this storm.
Locations impacted include...
Cortland... Canaan Valley State Park...
Laneville... Red Creek...
This storm may intensify, so monitor local radio or television
stations for additional information and possible warnings from the
National Weather Service.
LAT...LON 3898 7947 3898 7950 3897 7950 3899 7956
3913 7938 3911 7934 3908 7935 3908 7933
3907 7932 3907 7930 3905 7930 3904 7932
3902 7931 3896 7935
TIME...MOT...LOC 1839Z 212DEG 13KT 3895 7945Special weather statement, Aug 20, 4:28 PM EDT, 1 hour 5 minutes before
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</html>Special weather statement, Aug 20, 5:29 PM EDT, 4 minutes before
Special Weather Statement National Weather Service Pittsburgh PA 529 PM EDT Tue Aug 20 2019 PAZ013-202200- Lawrence- 529 PM EDT Tue Aug 20 2019 ...A STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL AND GUSTY WIND WILL AFFECT SOUTHEASTERN LAWRENCE COUNTY... At 529 PM EDT, a strong thunderstorm was located near Ellwood City, or 7 miles south of New Castle, moving east at 5 mph. Wind gusts up to 55 mph and small hail are possible with this storm. Locations impacted include... Ellwood City... Big Beaver... New Beaver... Ellport... Wampum... McConnells Mill... Rose Point Park... This includes Pennsylvania Turnpike between mile markers 7 and 8. This storm may intensify, so monitor local radio or television stations for additional information and possible warnings from the National Weather Service. LAT...LON 4086 8016 4085 8041 4094 8042 4101 8016 TIME...MOT...LOC 2129Z 258DEG 6KT 4090 8036
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 5:29 PM EDT | Special Weather Statement | PBZ | Lawrence | 31 min |
| Aug 20, 6:21 PM EDT | Special Weather Statement | PBZ | Coshocton | 24 min |
| Aug 20, 6:24 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Tuscarawas | 36 min |
| Aug 20, 6:42 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Tuscarawas | 48 min |
| Aug 20, 6:46 PM EDT | Special Weather Statement | PBZ | Harrison | 29 min |
| Aug 20, 7:16 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Harrison, Jefferson | 44 min |
| Aug 20, 7:27 PM EDT | Special Weather Statement | PBZ | Tuscarawas | 33 min |
| Aug 20, 7:32 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Harrison, Tuscarawas | 43 min |
| Aug 20, 7:48 PM EDT | Special Weather Statement | PBZ | Guernsey | 27 min |
| Aug 20, 11:14 AM EDT | Special Weather Statement | PBZ | Preston | 31 min |
| Aug 20, 2:39 PM EDT | Special Weather Statement | PBZ | Tucker | 36 min |
| Aug 20, 2:42 PM EDT | Severe Thunderstorm Warning | PBZ | Tucker | 38 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.