Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 231, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 8, 2019, 5:46 PM EDT for 4 counties in 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 8, 2019, 5:46 PM EDT (21:46 UTC)
- Expired
- Aug 8, 2019, 6:12 PM EDT
- In force
- 26 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Allegheny County, PA, Fayette County, PA, Washington County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 47 km from the middle of the area, began a volume at 21:46 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 |
|---|---|---|---|
| Aug 8, 12:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.8 hours before the alert went out and 31 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
- 16 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1381 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 2:57 PM EDT | Special Weather Statement | PBZ | Westmoreland | 48 min |
| Aug 8, 4:01 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 44 min |
| Aug 8, 4:54 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 51 min |
| Aug 8, 5:31 PM EDT | Special Weather Statement | PBZ | Washington | 44 min |
| Aug 8, 5:41 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 49 min |
| Aug 8, 6:45 PM EDT | Special Weather Statement | PBZ | Allegheny | 30 min |
| Aug 8, 1:42 PM EDT | Special Weather Statement | PBZ | Muskingum | 33 min |
| Aug 8, 2:14 PM EDT | Special Weather Statement | PBZ | Noble | 31 min |
| Aug 8, 3:06 PM EDT | Special Weather Statement | PBZ | Noble | 24 min |
| Aug 8, 3:29 PM EDT | Special Weather Statement | PBZ | Muskingum, Noble | 46 min |
| Aug 8, 3:46 PM EDT | Severe Thunderstorm Warning | PBZ | Guernsey, Monroe, Muskingum, Noble | 28 min |
| Aug 8, 4:29 PM EDT | Severe Thunderstorm Warning | PBZ | Noble | 31 min |
| Aug 8, 4:48 PM EDT | Special Weather Statement | PBZ | Harrison | 42 min |
| Aug 8, 5:03 PM EDT | Severe Thunderstorm Warning | PBZ | Muskingum, Noble | 27 min |
| Aug 8, 2:48 PM EDT | Special Weather Statement | PBZ | Marion, Preston | 42 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.