Widely scattered storms developed in a moderate CAPE, moderate shear environment across northern Pennsylvania ahead of an approaching cold front. One of the storms produce wind damage in Clinton County, PA during the late afternoon hours on June 26, 2019.
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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.
Widely scattered storms developed in a moderate CAPE, moderate shear environment across northern Pennsylvania ahead of an approaching cold front. One of the storms produce wind damage in Clinton County, PA during the late afternoon hours on June 26, 2019.
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 Jun 26, 1:33 PM EST, 1 hour 22 minutes earlier.
Area Forecast Discussion National Weather Service State College PA 233 PM EDT Wed Jun 26 2019 .SYNOPSIS... A weak cold front will push into northern Pennsylvania late this evening. A new area of high pressure building southeast from the Great Lakes will push a warmer and more humid airmass toward the region for Thursday. The warm and humid air will remain in place into the weekend before a cold front brings some relief for early next week. && .NEAR TERM /THROUGH TONIGHT/... The first echoes of the day are starting to pop from about Wellsboro to Clearfield. They seem to be within an axis of moderate instability with not insignificant deep layer shear. The showers are not rotating as yet, but the RAP does analyze some helicity. The HRRR unsurprisingly is late to initiate convection, but during the ensuing hours it does spark off some storms and drops them slowly SE while weakening. This is suspect first of all because the latest run holds of convective initiation until between 4-5 PM. Getting a couple of hour head start could lead to a wider area seeing the chance of rain. Mixed layer CAPE in the RAP is in excess of 1500J along I-80. The instability will combine with moderate shear to make an isolated strong/gusty thunderstorm possible over my NRN zones. This is where SPC has a Marginal Risk for SVR painted for today. -Rap shows mid lapse rates in excess of 6C/km in place -EHI's exceed 1 over a surprisingly big portion of NRN PA. Outside of the storms where a few tenths of an inch of rain could fall in a short time span, rainfall will be quite sparse. Activity should wane quickly with the setting sun, leading to a fair and mild overnight. Lows from the mid 50s to mid 60s will be several deg warmer than average. && .SHORT TERM /THURSDAY/... Most of the CWA will remain dry and quite warm to hot with highs generally in the 80s, and some SERN locations topping 90 on Thursday. Humidity will also start to rebound which could lead to a terrain aided diurnal shower/storm during the afternoon. && .LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/... Thursday through much of Friday should be mainly dry as another weak bubble of high pressure breaks away from the main llvl ridge, and drifts across southern NY. This high will temporarily push/keep the boundary over southern PA for Thursday into early Friday. Another relatively weak cfropa will approach from the Lower Glakes and Ohio Valley Friday. This front and a moderately strong westerly LLJ over NW PA should be sufficient to spark another round of strong to potentially severe thunderstorms Friday afternoon/evening. SPC has practically the same portion of the state painted in a Marginal Risk for severe TSRA on Day 3 (Friday through 12Z Saturday. A stronger cold front and upper lvl trough will move across the region on Sunday, ushering in colder and drier air. The upper lvl trough looks to lag the sfc cold front some. This would limit the chance of stronger storms with the cold front. Made some minor changes to this part of the fcst package. Enjoy the early summer weather. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... Widespread VFR is in place. Localized restrictions are possible in scattered showers and isolated thunderstorms this afternoon mainly north of I-80 ahead of a weak cool front. A few of the storms could produce localized strong wind gusts and small hail. VFR conditions, outside of some patchy early morning valley fog, will then continue Friday. .Outlook... Fri-Sun...Scattered PM thunderstorms possible NW. Mon...No Sig Wx. && .CTP WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...La Corte NEAR TERM...La Corte SHORT TERM...La Corte LONG TERM...Lambert AVIATION...La Corte
Hazardous Weather Outlook National Weather Service State College PA 446 AM EDT Wed Jun 26 2019 PAZ004>006-010>012-017>019-024>027-037-041-042-045-046-049>053- 270900- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Tioga-Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming- Union-Snyder-Montour-Northumberland-Columbia- 446 AM EDT Wed Jun 26 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Scattered strong to severe thunderstorms with gusty winds and small hail are possible this afternoon and early this evening across portions of Central and Northern Pennsylvania. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Scattered strong to severe thunderstorms with gusty winds and hail are possible Friday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ028-033>036-056>059-063>066-270900- Juniata-Somerset-Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill- Lebanon-Cumberland-Adams-York-Lancaster- 446 AM EDT Wed Jun 26 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service State College PA
339 PM EDT Wed Jun 26 2019
PAZ012-041-045-046-262015-
Southern Lycoming PA-Southern Clinton PA-Northern Clinton PA-
Northern Lycoming PA-
339 PM EDT Wed Jun 26 2019
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LYCOMING AND CLINTON
COUNTIES UNTIL 415 PM EDT...
At 339 PM EDT, Doppler radar indicated a strong thunderstorm over
Avis, moving southeast at 30 mph.
Wind gusts 40 to 50 mph and pea size hail are possible.
Locations impacted include...
Jersey Shore, Carroll, Avis, McElhattan, Collomsville, Elimsport,
Waterville, Oval and Salladasburg.
LAT...LON 4116 7694 4114 7692 4115 7694 4115 7696
4109 7698 4108 7707 4107 7714 4104 7715
4102 7722 4122 7746 4133 7738
TIME...MOT...LOC 1939Z 297DEG 28KT 4122 7735
KFThe State College radar (KCCX), 56 km away, was scanning. The volume nearest the first event began at 19:55 UTC.
3 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees near Swissdale.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Dunnstable Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Pine Creek Township.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2019Every state in 2019This day in weather historyWarnings in Pennsylvania, June 2019
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: 837360, 837361, 837362.