Alert archive / Pennsylvania / Snow Squall Warnings in 2019
Snow Squall Warning 1, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this snow squall warning at Jan 30, 2019, 5:23 AM EST for 5 counties in Pennsylvania; Brooke County, Ohio County, West Virginia. It was in force for 52 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
- Jan 30, 2019, 5:23 AM EST (10:23 UTC)
- Expired
- Jan 30, 2019, 6:15 AM EST
- In force
- 52 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
Counties Allegheny County, PA, Armstrong County, PA, Butler County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Ohio County, WV
The radar
The Pittsburgh radar (KPBZ), 18 km from the middle of the area, began a volume at 10:26 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 10.4 hours before the alert went out and 280 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- -89 m²/s²
- 0-3 km storm-relative helicity
- -128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this snow squall 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 snow squall warning went out at Jan 29, 6:20 PM EST, 11 hours 3 minutes earlier.
Area forecast discussion, Jan 29, 6:20 PM EST, 11 hours 3 minutes before
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</html>Hazardous weather outlook, Jan 29, 9:22 AM EST, 20 hours 1 minute 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 |
|---|---|---|---|---|
| Jan 29, 7:32 PM EST | Special Weather Statement | PBZ | Westmoreland | 28 min |
| Jan 29, 8:00 PM EST | Special Weather Statement | PBZ | Westmoreland | 45 min |
| Jan 30, 2:21 AM EST | Special Weather Statement | PBZ | Beaver | 54 min |
| Jan 30, 3:20 AM EST | Special Weather Statement | PBZ | Beaver, Butler | 55 min |
| Jan 30, 4:06 AM EST | Winter Weather Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Fayette, Greene and 2 more | 5 hr |
Nearby
Snow Squall Warnings in Pennsylvania, 2019Snow Squall Warnings in West Virginia, 2019Every snow squall 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.