Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 169, NWS State College, PA

July 4, 2026Lancaster County, York County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 4, 2026, 7:38 PM EDT for Lancaster County, York County, Pennsylvania. It was in force for 61 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: Jul 4, 2026, 7:38 PM EDT (23:38 UTC)
Expired: Jul 4, 2026, 8:39 PM EDT
In force: 61 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.88 in
Wind: 70.0 mph

Counties Lancaster County, PA, York County, PA

The radar

The Sterling radar (KLWX), 141 km from the middle of the area, began a volume at 23:37 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
Jul 4, 3:28 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.6 hours before the alert went out and 139 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: 721 J/kg
Mixed-layer CIN: -310 J/kg
Mixed-layer LCL: 1583 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

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 Jul 4, 7:30 PM EDT, 8 minutes earlier.

Area forecast discussion, Jul 4, 7:30 PM EDT, 8 minutes before

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Hazardous weather outlook, Jul 4, 3:30 PM EDT, 4 hours 8 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
330 PM EDT Sat Jul 4 2026

PAZ035-036-056-057-059-063>066-051930-
Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-
Lancaster-
330 PM EDT Sat Jul 4 2026

...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL 11 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.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Developing thunderstorm clusters may pose a risk for damaging wind
gusts and heavy rain on Sunday particularly near and to the south of
Interstate 80. Locally heavy rainfall is also possible on Monday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004>006-010>012-017-018-024-033-037-041-042-051930-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Cambria-Somerset-Tioga-Northern Lycoming-Sullivan-
330 PM EDT Sat Jul 4 2026

...SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL 11 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.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Developing thunderstorm clusters may pose a risk for damaging wind
gusts and heavy rain on Sunday particularly near and to the south of
Interstate 80. Locally heavy rainfall is also possible on Monday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ019-025>028-034-045-046-049>053-058-051930-
Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Bedford-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
330 PM EDT Sat Jul 4 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL 11 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.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Developing thunderstorm clusters may pose a risk for damaging wind
gusts and heavy rain on Sunday particularly near and to the south of
Interstate 80. Locally heavy rainfall is also possible on Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jul 4, 7:03 PM EDT, 35 minutes before

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Local storm report, Jul 4, 7:12 PM EDT, 26 minutes before

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Local storm report, Jul 4, 7:19 PM EDT, 19 minutes before

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Local storm report, Jul 4, 7:21 PM EDT, 17 minutes before

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Special weather statement, Jul 4, 7:27 PM EDT, 11 minutes before

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Local storm report, Jul 4, 7:33 PM EDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 9:23 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	67 min
Jul 3, 9:57 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Blair, Cambria, Centre, Clearfield, Huntingdon	63 min
Jul 3, 10:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Mifflin, Snyder, Union	63 min
Jul 3, 11:28 PM EDT	Special Weather Statement	CTP	Snyder, Union	47 min
Jul 3, 11:45 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	45 min
Jul 4, 12:06 AM EDT	Severe Thunderstorm Warning	CTP	Cameron, Centre, Clearfield, Clinton, Elk	39 min
Jul 4, 12:24 AM EDT	Special Weather Statement	CTP	Schuylkill	66 min
Jul 4, 2:21 PM EDT	Special Weather Statement	CTP	Warren	24 min
Jul 4, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	47 min
Jul 4, 2:58 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	47 min
Jul 4, 3:07 PM EDT	Severe Thunderstorm Warning	CTP	McKean	38 min
Jul 4, 3:25 PM EDT	Special Weather Statement	CTP	Fulton	35 min
Jul 4, 3:28 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk, McKean	47 min
Jul 4, 3:41 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	49 min
Jul 4, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	44 min
Jul 4, 4:14 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk, McKean, Potter	46 min
Jul 4, 4:28 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Potter, Tioga	47 min
Jul 4, 4:28 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton	47 min
Jul 4, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	44 min
Jul 4, 5:10 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	65 min
Jul 4, 5:13 PM EDT	Special Weather Statement	CTP	Lycoming	32 min
Jul 4, 5:15 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	45 min
Jul 4, 5:30 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Huntingdon, Juniata, Perry	45 min
Jul 4, 5:38 PM EDT	Special Weather Statement	CTP	Cameron	37 min
Jul 4, 5:47 PM EDT	Special Weather Statement	CTP	Lycoming	28 min
Jul 4, 5:51 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria, Centre, Clearfield, Huntingdon	54 min
Jul 4, 5:59 PM EDT	Special Weather Statement	CTP	Cambria	31 min
Jul 4, 6:01 PM EDT	Special Weather Statement	CTP	Cambria	29 min
Jul 4, 6:03 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	42 min
Jul 4, 6:08 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Juniata, Perry	52 min
Jul 4, 6:21 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Clearfield, Huntingdon, Mifflin	39 min
Jul 4, 6:37 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lancaster, Lebanon, Perry, York	38 min
Jul 4, 6:39 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin, York	51 min
Jul 4, 7:00 PM EDT	Special Weather Statement	CTP	Huntingdon, Mifflin	30 min
Jul 4, 7:08 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Dauphin, Lancaster, Lebanon, Schuylkill, York	67 min
Jul 4, 7:10 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	50 min
Jul 4, 7:27 PM EDT	Special Weather Statement	CTP	Snyder	33 min
Jul 4, 7:37 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Juniata, Lycoming, Mifflin, Northumberland and 2 more	38 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2026 Every severe thunderstorm warning in 2026

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.