A slow-moving, nearly stationary, cold front across central Pennsylvania allowed for the eastern half of Pennsylvania to remain in the warm sector through the early afternoon hours on July 8, 2025. Ample instability, moisture, and lift allowed for showers and thunderstorms to begin to develop along and ahead of the cold front, with marginal shear in place limiting the severe potential.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CTP wrote it up.
A slow-moving, nearly stationary, cold front across central Pennsylvania allowed for the eastern half of Pennsylvania to remain in the warm sector through the early afternoon hours on July 8, 2025. Ample instability, moisture, and lift allowed for showers and thunderstorms to begin to develop along and ahead of the cold front, with marginal shear in place limiting the severe potential. Strong-to-severe thunderstorms began across portions of the south-central mountains by mid-afternoon, producing isolated wind damage in Juniata County before moving into slightly more favorable shear in the Lower Susquehanna Valley and producing more widespread tree and wire damage, particularly in northern Lancaster County.
The local office's own words before the first event, 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 the first event at Jul 8, 12:12 PM EST, 53 minutes earlier.
Area Forecast Discussion National Weather Service State College PA 112 PM EDT Tue Jul 8 2025 .SYNOPSIS... * Flash flooding and damaging thunderstorm wind risk this afternoon and evening across the southeastern portion of central PA * Similar setup for Wednesday with renewed damaging wind and flash flooding risks focused over southeast PA * Continued seasonably warm and humid with scattered afternoon and evening thunderstorms through the weekend && .NEAR TERM /THROUGH TONIGHT/... Thunderstorms are beginning to develop early this afternoon along and ahead of an outflow boundary associated with morning convection that has moved in from the Ohio Valley. As this convection moves eastward with time through the afternoon, it will encounter a more unstable and sheared airmass, likely helping it to take on a more linear mode. With this evolution, the likelihood of damaging wind gusts will increase. Pwats eclipsing 2" over southeast PA will support a flash flood threat where any tstms train. We issued a flood watch starting 18Z today for a portion of the Lower Susquehanna Valley in coordination with WFO LWX. In addition to the robust and anomalous pwat values, very efficient warm-rain processes could lead to rain rates >2"/hr at times resulting in potential instances of flash flooding. Ahead of the rain, there also remains some concern for max HX values to reach or exceed the century mark in parts of the LSV. However, not thinking that this will be widespread enough to warrant a Heat Advisory. Hires models show the majority of showers/storms will shift to the east before midnight (in fact, most guidance has the bulk of the convective activity winding down before 8 PM). Min temps will be a bit cooler than last night, with fog likely forming in the valleys through the predawn hours Wednesday. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... Similar overall synoptic setup on Wednesday & Thursday with gradual southward shift to the severe t-storm and FF risk areas coincident with zone of max PW. Conditions will remain humid and with daytime highs in the 80s. && .LONG TERM /FRIDAY THROUGH MONDAY/... The forecast for Friday and the weekend is more uncertain, with some guidance suggesting a break in the unsettled pattern, and others suggesting active weather continues. An active pattern would favor continue heat/humidity while a quieter pattern could support the intrusion of lower dewpoints and more refreshing conditions. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... A very sluggish, weak cold frontal boundary extended from near KELM to KPIT at daybreak this morning, preceded by a surface trough over the Delaware Valley. The very shallow and just slightly cooler/marginally drier air behind the front has trapped low stratus and stratocu with IFR to low MVFR conditions across much of far western PA, Ohio and Western NY. The southeast half of PA was generally VFR with only scattered clouds and a bit of haze/light fog with just a few spots coming in with MVFR Vsbys. The clear skies to the east and extensive low clouds through this morning over the west will greatly increase the temp gradient east to west across the front as strong heating occurs in the mainly clear air with a much slower warmup west of the front. Any IFR CIGS for the next several hours will be across the Laurel Highlands and NW Mtns. MVFR could linger into, or through this afternoon at KBFD, while KJST should hold onto MVFR conditions until around 16Z, before seeing an improvement/lifting of the low cloud bases. Previous Disc... Muggy air with sfc dewpoints in the upper 60s to low 70s covered much of the SE 2/rids of the state at 06Z and these conditions will persist ahead of this front across much of Central and SE PA, while slightly cooler air with an 8-10 deg F drop in dewpoint values will occur across the NW part of PA today. A few additional showers could develop by midday today, but showers and thunderstorms will become more prevalent as we head into the afternoon. Brief restrictions are possible everywhere except BFD, with storms starting in the vicinity of a line extending from JST/AOO to UNV to IPT and then moving east- southeastward and affecting MDT and LNS later in the afternoon/early evening. Outlook... Tue PM...Showers fade, fog possible across much of the region into Wednesday morning. Wed...Best chance for storms and restrictions in southern PA. Thu-Sat...Potential for showers and thunderstorms, mainly aftn/eve. && .CTP WATCHES/WARNINGS/ADVISORIES... Flood Watch until midnight EDT tonight for PAZ057-059-065-066. && SYNOPSIS...Steinbugl/Colbert NEAR TERM...Steinbugl/Colbert SHORT TERM...Steinbugl/Colbert LONG TERM...Lambert/Colbert AVIATION...Lambert
Hazardous Weather Outlook National Weather Service State College PA 203 PM EDT Tue Jul 8 2025 PAZ006-010>012-017>019-024-025-037-041-042-045-046-091815- Potter-Elk-Cameron-Northern Clinton-Clearfield-Northern Centre- Southern Centre-Cambria-Blair-Tioga-Northern Lycoming-Sullivan- Southern Clinton-Southern Lycoming- 203 PM EDT Tue Jul 8 2025 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Isolated strong thunderstorms with gusty winds and locally heavy rainfall are possible this afternoon. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ056-058-063-064-091815- Perry-Schuylkill-Cumberland-Adams- 203 PM EDT Tue Jul 8 2025 ...SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 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...Wednesday through Monday. Isolated damaging thunderstorm wind gusts are also possible Wednesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ026>028-033>036-049>053-091815- Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-Franklin-Union- Snyder-Montour-Northumberland-Columbia- 203 PM EDT Tue Jul 8 2025 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Isolated damaging thunderstorm wind gusts are also possible Wednesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ057-059-065-066-091815- Dauphin-Lebanon-York-Lancaster- 203 PM EDT Tue Jul 8 2025 ...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...SEVERE THUNDERSTORM WATCH 496 IN EFFECT UNTIL 9 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. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Isolated damaging thunderstorm wind gusts are also possible Wednesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ004-005-091815- Warren-McKean- 203 PM EDT Tue Jul 8 2025 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The State College radar (KCCX), 68 km away, was scanning. The volume nearest the first event began at 18:04 UTC.
9 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree onto wires on the 200 block of Hower Road approximately 2 miles southwest of McAlisterville.
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree down onto Clarks Valley Road approximately 2 miles north of Dauphin.
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree down which blocked one lane of Creek Road near the intersection of Lehman Road approximately 2 miles south-southwest of Halifax.
A severe thunderstorm producing wind gusts estimated at 60 mph caused damage to trees and power lines throughout Clay Township.
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree down on the 400 block of South Race Street in Myerstown.
A severe thunderstorm producing wind gusts estimated at 60 mph knocked trees and wires down on West Market Street near the intersection of South Royal Street in York.
A severe thunderstorm producing wind gusts estimated at 70 mph knocked a tree down onto a house on the 300 block of Greenville Road approximately 2 miles north-northwest of Denver. No injuries were reported.
A severe thunderstorm producing wind gusts estimated at 70 mph caused damage to trees and power lines throughout West Cocalico Township.
A severe thunderstorm producing wind gusts estimated at 60 mph caused damage to trees and power lines along the 200 block of Hopeland Road in Brickerville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2025Every state in 2025This day in weather historyWarnings in Pennsylvania, July 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1276101, 1276102, 1276103, 1276105, 1276104, 1276106, 1276107, 1276108, 1276109.