Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 129, NWS Pittsburgh, PA

June 24, 20194 counties in Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 24, 2019, 7:44 PM EDT for 4 counties in Pennsylvania. It was in force for 46 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 24, 2019, 7:44 PM EDT (23:44 UTC)
Expired: Jun 24, 2019, 8:30 PM EDT
In force: 46 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Armstrong County, PA, Butler County, PA, Clarion County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 78 km from the middle of the area, began a volume at 23:46 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
Jun 24, 3:37 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.7 hours before the alert went out and 84 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1344 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 24, 7:42 PM EDT, 2 minutes earlier.

Area forecast discussion, Jun 24, 7:42 PM EDT, 2 minutes before

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Hazardous weather outlook, Jun 24, 7:44 PM EDT, 0 minutes before

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In the hours before

Local storm report, Jun 24, 6:31 PM EDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
631 PM EDT MON JUN 24 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0612 PM     TSTM WND DMG     STEUBENVILLE            40.37N  80.65W
06/24/2019                   JEFFERSON          OH   TRAINED SPOTTER

            LARGE BRANCHES AND POWER OUTAGES ALONG SDUNSET BLVD.

&&

EVENT NUMBER PBZ1902308

Local storm report, Jun 24, 7:03 PM EDT, 41 minutes before

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Local storm report, Jun 24, 7:11 PM EDT, 33 minutes before

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Local storm report, Jun 24, 7:17 PM EDT, 27 minutes before

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Local storm report, Jun 24, 7:23 PM EDT, 21 minutes before

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Local storm report, Jun 24, 7:26 PM EDT, 18 minutes before

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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 6:25 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	50 min
Jun 24, 6:58 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Lawrence	47 min
Jun 24, 7:54 PM EDT	Areal Flood Advisory	PBZ	Allegheny	3 hr
Jun 24, 4:23 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum, Noble	52 min
Jun 24, 4:46 PM EDT	Tornado Warning	PBZ	Coshocton, Guernsey, Muskingum	29 min
Jun 24, 5:05 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Carroll, Coshocton, Guernsey, Muskingum, Noble and 1 more	40 min
Jun 24, 5:16 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Monroe, Noble	29 min
Jun 24, 5:22 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Harrison, Monroe, Noble, Tuscarawas	53 min
Jun 24, 5:41 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Monroe, Noble	49 min
Jun 24, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Harrison, Tuscarawas	31 min
Jun 24, 5:51 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Carroll, Columbiana, Harrison, Jefferson	39 min
Jun 24, 7:21 PM EDT	Flash Flood Warning	PBZ	Brooke, Ohio	3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2019 Every 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.