Alert archive / Pennsylvania / Tornado Warnings in 2025

Tornado Warning 23, NWS Pittsburgh, PA

June 18, 2025Beaver County, Lawrence County, Pennsylvania; Columbiana County, Ohio

NWS Pittsburgh, PA issued this tornado warning at Jun 18, 2025, 7:43 PM EDT for Beaver County, Lawrence County, Pennsylvania; Columbiana County, Ohio. It was in force for 32 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 18, 2025, 7:43 PM EDT (23:43 UTC)
Expired
Jun 18, 2025, 8:15 PM EDT
In force
32 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Columbiana County, OH, Beaver County, PA, Lawrence County, PA

The radar

The Pittsburgh radar (KPBZ), 39 km from the middle of the area, began a volume at 23:44 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, 11.7 hours before the alert went out and 55 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2025-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 315 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2025-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
315 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jun 18, 7:42 PM EDT, 1 minute earlier.

Area forecast discussion, Jun 18, 7:42 PM EDT, 1 minute before
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Hazardous weather outlook, Jun 18, 12:57 PM EDT, 6 hours 46 minutes before
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In the hours before

Local storm report, Jun 18, 5:54 PM EDT, 1 hour 49 minutes before
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Local storm report, Jun 18, 6:04 PM EDT, 1 hour 39 minutes before
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Local storm report, Jun 18, 6:12 PM EDT, 1 hour 31 minutes before
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Local storm report, Jun 18, 6:24 PM EDT, 1 hour 19 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
624 PM EDT Wed Jun 18 2025

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

0623 PM     Flash Flood      1 W Butler              40.86N 79.91W
06/18/2025                   Butler             PA   Public

            Water over the roadway near Pillow Street.

&&
Local storm report, Jun 18, 6:33 PM EDT, 1 hour 10 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
633 PM EDT Wed Jun 18 2025

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

0632 PM     Flash Flood      1 S Barkeyville         41.18N 79.98W
06/18/2025                   Venango            PA   Public

            One lane is flooded on Slippery Rock Creek
            Road.

&&
Local storm report, Jun 18, 6:34 PM EDT, 1 hour 9 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
634 PM EDT Wed Jun 18 2025

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

0634 PM     Flash Flood      3 ENE Clintonville      41.22N 79.83W
06/18/2025                   Venango            PA   Public

            Flooding has been reported along Riddle
            Road.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 9:31 AM EDTFlash Flood WarningPBZJefferson5 hr
Jun 18, 11:25 AM EDTFlash Flood WarningPBZArmstrong, Butler, Clarion3 hr
Jun 18, 4:18 PM EDTSevere Thunderstorm WarningPBZLawrence, Mercer47 min
Jun 18, 4:44 PM EDTFlash Flood WarningPBZForest, Venango3 hr
Jun 18, 5:20 PM EDTSevere Thunderstorm WarningPBZAllegheny, Westmoreland40 min
Jun 18, 5:43 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Butler, Indiana47 min
Jun 18, 5:47 PM EDTFlash Flood WarningPBZClarion, Forest, Jefferson, Venango3 hr
Jun 18, 7:21 PM EDTFlash Flood WarningPBZJefferson86 min
Jun 18, 7:26 PM EDTSevere Thunderstorm WarningPBZBeaver, Lawrence34 min
Jun 18, 7:32 PM EDTAreal Flood WarningPBZForest, Venango118 min

Nearby

Tornado Warnings in Pennsylvania, 2025Tornado Warnings in Ohio, 2025Every tornado warning in 2025Tornadoes in 2025

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.