Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 121, NWS State College, PA

June 25, 2025Adams County, Franklin County, Fulton County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 25, 2025, 7:34 PM EDT for Adams County, Franklin County, Fulton County, Pennsylvania. It was in force for 71 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 25, 2025, 7:34 PM EDT (23:34 UTC)
Expired
Jun 25, 2025, 8:45 PM EDT
In force
71 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Adams County, PA, Franklin County, PA, Fulton County, PA

The radar

The Sterling radar (KLWX), 105 km from the middle of the area, began a volume at 23:35 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 12:00Z, 11.6 hours before the alert went out and 109 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, Washington/Dulle, VA at 12:00Z on 2025-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 515 joules per kilogram.LCLLFCEL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2025-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 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
515 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1717 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
-27 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 25, 6:56 PM EDT, 38 minutes earlier.

Area forecast discussion, Jun 25, 6:56 PM EDT, 38 minutes before
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Hazardous weather outlook, Jun 25, 1:26 PM EDT, 6 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
126 PM EDT Wed Jun 25 2025

PAZ036-063>065-261730-
Franklin-Cumberland-Adams-York-
126 PM EDT Wed Jun 25 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 9 AM TO 7 PM EDT THURSDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Extreme Heat Warning.

Strong to severe thunderstorms may develop this afternoon. Some of
the storms may produce strong wind gusts and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.

Strong to potentially severe thunderstorms will be possible Thursday
afternoon. The storms will be capable of producing strong wind gusts
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004>006-010>012-017-018-024-033-037-041-042-261730-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Cambria-Somerset-Tioga-Northern Lycoming-Sullivan-
126 PM EDT Wed Jun 25 2025

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Strong to severe thunderstorms may develop this afternoon. Some of
the storms may produce strong wind gusts and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to potentially severe thunderstorms will be possible Thursday
afternoon. The storms will be capable of producing strong wind gusts
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ056-057-059-066-261730-
Perry-Dauphin-Lebanon-Lancaster-
126 PM EDT Wed Jun 25 2025

...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Extreme Heat Warning.

Strong to severe thunderstorms may develop this afternoon. Some of
the storms may produce strong wind gusts and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to potentially severe thunderstorms will be possible Thursday
afternoon. The storms will be capable of producing strong wind gusts
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ019-025>028-045-046-049>053-058-261730-
Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Schuylkill-
126 PM EDT Wed Jun 25 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.

Strong to severe thunderstorms may develop this afternoon. Some of
the storms may produce strong wind gusts and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strong to potentially severe thunderstorms will be possible Thursday
afternoon. The storms will be capable of producing strong wind gusts
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ034-035-261730-
Bedford-Fulton-
126 PM EDT Wed Jun 25 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 9 AM TO 7 PM EDT THURSDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.

Strong to severe thunderstorms may develop this afternoon. Some of
the storms may produce strong wind gusts and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Heat Advisory.

Strong to potentially severe thunderstorms will be possible Thursday
afternoon. The storms will be capable of producing strong wind gusts
and locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Local storm report, Jun 25, 6:11 PM EDT, 1 hour 23 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
611 PM EDT Wed Jun 25 2025

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

0530 PM     Tstm Wnd Dmg     1 W New Ringgold        40.69N 76.01W
06/25/2025                   Schuylkill         PA   911 Call Center

            Tree Down.

&&

BCL
Special weather statement, Jun 25, 6:55 PM EDT, 39 minutes before
Special Weather Statement
National Weather Service State College PA
655 PM EDT Wed Jun 25 2025

PAZ017>019-025>027-045-260030-
Clearfield-Northern Centre-Southern Centre-Blair-Huntingdon-
Mifflin-Southern Clinton-
655 PM EDT Wed Jun 25 2025

...STRONG THUNDERSTORMS MOVING SOUTH ACROSS THE REGION EARLY THIS
EVENING...

An area of strong thunderstorms, located just to the north of
Interstate 80, from Pine Glen to Mackeyville at 650 pm will be
moving South across the area through 830 pm, before gradually
weakening near and to the south of a line from Tyrone to
Lewistown.

* Wind gusts out of the north up to 45 MPH.
* Pea to dime size hail possible.
* A 10 minute period of very heavy rainfall.

If outdoors, consider seeking shelter inside a building.

The storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from your National Weather Service.

Lambert
Local storm report, Jun 25, 7:01 PM EDT, 33 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
701 PM EDT Wed Jun 25 2025

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

0635 PM     Tstm Wnd Dmg     2 NW Tamarack           41.45N 77.88W
06/25/2025                   Clinton            PA   911 Call Center

            Tree Down.

&&

BCL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 1:24 PM EDTHeat AdvisoryCTPAdams, Bedford, Cumberland, Franklin, Fulton, York30 hr
Jun 25, 5:06 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin39 min
Jun 25, 5:31 PM EDTSevere Thunderstorm WarningCTPSchuylkill44 min
Jun 25, 5:32 PM EDTSevere Thunderstorm WarningCTPSchuylkill43 min
Jun 25, 5:45 PM EDTSevere Thunderstorm WarningCTPColumbia, Lycoming, Montour30 min
Jun 25, 5:54 PM EDTSevere Thunderstorm WarningCTPLancaster51 min
Jun 25, 6:06 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, York39 min
Jun 25, 6:36 PM EDTSevere Thunderstorm WarningCTPClinton39 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2025Every 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.