Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 255, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Aug 10, 2026, 3:27 PM EDT for York County, Pennsylvania. It was in force for 48 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
- Aug 10, 2026, 3:27 PM EDT (19:27 UTC)
- Expired
- Aug 10, 2026, 4:15 PM EDT
- In force
- 48 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County York County, PA
The radar
The Sterling radar (KLWX), 124 km from the middle of the area, began a volume at 19:30 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 |
|---|---|---|---|
| Aug 10, 12:24 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.5 hours before the alert went out and 122 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.
- Mixed-layer CAPE
- 682 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1254 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.6
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 Aug 10, 3:19 PM EDT, 8 minutes earlier.
Area forecast discussion, Aug 10, 3:19 PM EDT, 8 minutes before
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</html>Hazardous weather outlook, Aug 10, 2:36 PM EDT, 51 minutes before
Hazardous Weather Outlook National Weather Service State College PA 236 PM EDT Mon Aug 10 2026 PAZ006-011-012-017>019-024>027-033>035-037-041-042-045-046-111845- Potter-Cameron-Northern Clinton-Clearfield-Northern Centre- Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Somerset-Bedford- Fulton-Tioga-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming- 236 PM EDT Mon Aug 10 2026 ...SEVERE THUNDERSTORM WATCH 552 IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... 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...Tuesday through Sunday. Thunderstorms with locally heavy rain are possible Tuesday and Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ028-036-049>053-056>059-063>066-111845- Juniata-Franklin-Union-Snyder-Montour-Northumberland-Columbia-Perry- Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- 236 PM EDT Mon Aug 10 2026 ...SEVERE THUNDERSTORM WATCH 553 IN EFFECT UNTIL 7 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. Thunderstorms with severe wind gusts and locally heavy rain will be possible this afternoon and evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms with locally heavy rain are possible Tuesday and Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ004-005-010-111845- Warren-McKean-Elk- 236 PM EDT Mon Aug 10 2026 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms with locally heavy rain are possible Tuesday and Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Aug 10, 2:07 PM EDT, 1 hour 20 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
207 PM EDT Mon Aug 10 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0135 PM Tstm Wnd Dmg 4 SE Somerset 39.96N 79.02W
08/10/2026 Somerset PA 911 Call Center
Two Trees down near the intersection of
Plank Road and Beachdale Road.
&&
JBLLocal storm report, Aug 10, 2:54 PM EDT, 33 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
254 PM EDT Mon Aug 10 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0225 PM Tstm Wnd Dmg 3 WSW Saint Thomas 39.92N 77.80W
08/10/2026 Franklin PA Utility Company
Trees down on wires along St. Thomas
Edenville Road.
&&Local storm report, Aug 10, 2:57 PM EDT, 30 minutes before
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</html>Local storm report, Aug 10, 3:03 PM EDT, 24 minutes before
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</html>Local storm report, Aug 10, 3:18 PM EDT, 9 minutes before
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</html>Local storm report, Aug 10, 3:21 PM EDT, 6 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 6:52 AM EDT | Special Weather Statement | CTP | Huntingdon | 38 min |
| Aug 10, 7:27 AM EDT | Special Weather Statement | CTP | Franklin | 33 min |
| Aug 10, 7:41 AM EDT | Special Weather Statement | CTP | Cumberland, Perry | 34 min |
| Aug 10, 8:08 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Perry, York | 52 min |
| Aug 10, 8:51 AM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, York | 39 min |
| Aug 10, 10:13 AM EDT | Special Weather Statement | CTP | Warren | 32 min |
| Aug 10, 10:34 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 41 min |
| Aug 10, 11:14 AM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 46 min |
| Aug 10, 11:35 AM EDT | Flash Flood Warning | CTP | McKean | 3 hr |
| Aug 10, 11:39 AM EDT | Special Weather Statement | CTP | Elk | 36 min |
| Aug 10, 11:53 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter | 52 min |
| Aug 10, 12:32 PM EDT | Special Weather Statement | CTP | Centre, Clinton | 58 min |
| Aug 10, 12:43 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton | 47 min |
| Aug 10, 12:53 PM EDT | Special Weather Statement | CTP | Tioga | 52 min |
| Aug 10, 1:13 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 47 min |
| Aug 10, 1:20 PM EDT | Special Weather Statement | CTP | Clinton | 25 min |
| Aug 10, 1:30 PM EDT | Special Weather Statement | CTP | Lycoming | 30 min |
| Aug 10, 1:35 PM EDT | Special Weather Statement | CTP | Franklin | 25 min |
| Aug 10, 1:55 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Sullivan | 50 min |
| Aug 10, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 43 min |
| Aug 10, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 39 min |
| Aug 10, 2:43 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin | 47 min |
| Aug 10, 2:45 PM EDT | Severe Thunderstorm Warning | CTP | York | 45 min |
| Aug 10, 2:54 PM EDT | Flash Flood Warning | CTP | Franklin | 95 min |
| Aug 10, 3:10 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, Lebanon | 25 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Every 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.