Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 75, NWS State College, PA

June 6, 20254 counties in Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 6, 2025, 4:46 PM EDT for 4 counties in Pennsylvania. It was in force for 29 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 6, 2025, 4:46 PM EDT (20:46 UTC)
Expired: Jun 6, 2025, 5:15 PM EDT
In force: 29 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clinton County, PA, Lycoming County, PA, Potter County, PA, Tioga County, PA

The radar

The State College radar (KCCX), 81 km from the middle of the area, began a volume at 20:47 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.8 hours before the alert went out and 187 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 69 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 State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 6, 4:00 PM EDT, 46 minutes earlier.

Area forecast discussion, Jun 6, 4:00 PM EDT, 46 minutes before

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Hazardous weather outlook, Jun 6, 2:04 PM EDT, 2 hours 42 minutes before

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In the hours before

Local storm report, Jun 6, 12:22 PM EDT, 4 hours 24 minutes before

Preliminary Local Storm Report
National Weather Service State College PA
1222 PM EDT Fri Jun 6 2025

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

1010 AM     Tstm Wnd Dmg     Johnstown               40.33N 78.92W
06/06/2025                   Cambria            PA   911 Call Center

            Reports of multiple trees down in the
            Johnstown area.

&&

JCB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 8:06 PM EDT	Flash Flood Warning	CTP	Blair, Cambria	3 hr
Jun 6, 9:49 AM EDT	Severe Thunderstorm Warning	CTP	Cambria	56 min
Jun 6, 12:33 PM EDT	Flash Flood Warning	CTP	Columbia, Northumberland, Schuylkill	3 hr
Jun 6, 12:57 PM EDT	Flash Flood Warning	CTP	Franklin	93 min
Jun 6, 1:01 PM EDT	Flood Watch	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	7 hr
Jun 6, 1:26 PM EDT	Flash Flood Warning	CTP	Cumberland, Perry	62 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2025 Every severe thunderstorm warning 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.